diff --git a/.travis.yml b/.travis.yml
index d0332f54..005c4404 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,4 +1,5 @@
 language: java
+sudo: false # faster builds
 
 jdk:
   - oraclejdk12
diff --git a/admin/admin-ui/src/api/canalInstance.js b/admin/admin-ui/src/api/canalInstance.js
index 2d7f2ac2..dbb81c7a 100644
--- a/admin/admin-ui/src/api/canalInstance.js
+++ b/admin/admin-ui/src/api/canalInstance.js
@@ -59,13 +59,6 @@ export function instanceLog(id, nodeId) {
   })
 }
 
-export function instanceMeta(id, nodeId) {
-  return request({
-    url: '/canal/instance/meta/' + id + '/' + nodeId,
-    method: 'get'
-  })
-}
-
 export function instanceStatus(id, option) {
   return request({
     url: '/canal/instance/status/' + id + '?option=' + option,
diff --git a/admin/admin-ui/src/router/index.js b/admin/admin-ui/src/router/index.js
index d1ac3b56..269022e7 100644
--- a/admin/admin-ui/src/router/index.js
+++ b/admin/admin-ui/src/router/index.js
@@ -128,13 +128,6 @@ export const constantRoutes = [
         component: () => import('@/views/canalServer/CanalInstanceLogDetail'),
         meta: { title: 'Instance 日志' },
         hidden: true
-      },
-      {
-        path: 'canalInstance/meta',
-        name: 'Instance meta',
-        component: () => import('@/views/canalServer/CanalInstanceMetaDetail'),
-        meta: { title: 'Instance Meta' },
-        hidden: true
       }
     ]
   },
diff --git a/admin/admin-ui/src/views/canalServer/CanalInstance.vue b/admin/admin-ui/src/views/canalServer/CanalInstance.vue
index 918762f4..0ec9e56b 100644
--- a/admin/admin-ui/src/views/canalServer/CanalInstance.vue
+++ b/admin/admin-ui/src/views/canalServer/CanalInstance.vue
@@ -64,7 +64,6 @@
               <el-dropdown-item @click.native="handleStart(scope.row)">启动</el-dropdown-item>
               <el-dropdown-item @click.native="handleStop(scope.row)">停止</el-dropdown-item>
               <el-dropdown-item @click.native="handleLog(scope.row)">日志</el-dropdown-item>
-              <el-dropdown-item @click.native="handleMeta(scope.row)">meta</el-dropdown-item>
             </el-dropdown-menu>
           </el-dropdown>
         </template>
@@ -118,7 +117,6 @@ export default {
     }
   },
   created() {
-    this.listQuery.name = this.$route.query.name
     getClustersAndServers().then((res) => {
       this.options = res.data
     })
@@ -224,13 +222,6 @@ export default {
         return
       }
       this.$router.push('canalInstance/log?id=' + row.id + '&nodeId=' + row.nodeServer.id)
-    },
-    handleMeta(row) {
-      if (row.nodeId === null) {
-        this.$message({ message: '当前Instance不是启动状态，无法查看meta', type: 'warning' })
-        return
-      }
-      this.$router.push('canalInstance/meta?id=' + row.id + '&nodeId=' + row.nodeServer.id)
     }
   }
 }
diff --git a/admin/admin-ui/src/views/canalServer/CanalInstanceMetaDetail.vue b/admin/admin-ui/src/views/canalServer/CanalInstanceMetaDetail.vue
deleted file mode 100644
index 19a09aef..00000000
--- a/admin/admin-ui/src/views/canalServer/CanalInstanceMetaDetail.vue
+++ /dev/null
@@ -1,53 +0,0 @@
-<template>
-  <div>
-    <el-form ref="form" :model="form">
-      <div style="padding-left: 10px;padding-right: 10px;padding-top: 20px;">
-        <el-form-item>
-          {{ form.instance }}.meta&nbsp;&nbsp;&nbsp;&nbsp;
-          <el-button type="primary" @click="onRefresh">刷新</el-button>
-          <el-button type="info" @click="onBack(form.instance)">返回</el-button>
-        </el-form-item>
-        <el-input v-model="form.desc" :rows="35" :readonly="'readonly'" type="textarea" />
-      </div>
-    </el-form>
-  </div>
-</template>
-
-<script>
-import { instanceMeta } from '@/api/canalInstance'
-
-export default {
-  data() {
-    return {
-      form: {
-        instance: '',
-        desc: ''
-      }
-    }
-  },
-  created() {
-    this.fetchData()
-  },
-  methods: {
-    fetchData() {
-      instanceMeta(this.$route.query.id, this.$route.query.nodeId).then(res => {
-        this.form.instance = res.data.instance
-        this.form.desc = res.data.meta
-      })
-    },
-    onRefresh() {
-      this.fetchData()
-    },
-    onBack(instance) {
-      this.$router.push('/canalServer/canalInstances?name=' + instance)
-    }
-  }
-}
-</script>
-
-<style scoped>
-.line{
-  text-align: center;
-}
-</style>
-
diff --git a/admin/admin-web/src/main/java/com/alibaba/otter/canal/admin/connector/AdminConnector.java b/admin/admin-web/src/main/java/com/alibaba/otter/canal/admin/connector/AdminConnector.java
index 1b1368a0..d06b29cb 100644
--- a/admin/admin-web/src/main/java/com/alibaba/otter/canal/admin/connector/AdminConnector.java
+++ b/admin/admin-web/src/main/java/com/alibaba/otter/canal/admin/connector/AdminConnector.java
@@ -128,12 +128,4 @@ public interface AdminConnector {
      */
     String instanceLog(String destination, String fileName, int lines);
 
-    /**
-     * meta
-     * @param destination
-     * @param fileName
-     * @return
-     */
-    String instanceMeta(String destination, String fileName);
-
 }
diff --git a/admin/admin-web/src/main/java/com/alibaba/otter/canal/admin/connector/SimpleAdminConnector.java b/admin/admin-web/src/main/java/com/alibaba/otter/canal/admin/connector/SimpleAdminConnector.java
index eef3c3e2..d3677280 100644
--- a/admin/admin-web/src/main/java/com/alibaba/otter/canal/admin/connector/SimpleAdminConnector.java
+++ b/admin/admin-web/src/main/java/com/alibaba/otter/canal/admin/connector/SimpleAdminConnector.java
@@ -206,11 +206,6 @@ public class SimpleAdminConnector implements AdminConnector {
         return doLogAdmin("instance", "file", destination, fileName, lines);
     }
 
-    @Override
-    public String instanceMeta(final String destination, final String fileName) {
-        return doLogAdmin("meta", "file", destination, fileName,100);
-    }
-
     // ==================== helper method ====================
 
     private String doServerAdmin(String action) {
diff --git a/admin/admin-web/src/main/java/com/alibaba/otter/canal/admin/controller/CanalInstanceController.java b/admin/admin-web/src/main/java/com/alibaba/otter/canal/admin/controller/CanalInstanceController.java
index 89e73802..e518557b 100644
--- a/admin/admin-web/src/main/java/com/alibaba/otter/canal/admin/controller/CanalInstanceController.java
+++ b/admin/admin-web/src/main/java/com/alibaba/otter/canal/admin/controller/CanalInstanceController.java
@@ -161,20 +161,6 @@ public class CanalInstanceController {
         return BaseModel.getInstance(canalInstanceConfigService.remoteInstanceLog(id, nodeId));
     }
 
-    /**
-     * 获取实例meta信息
-     *
-     * @param id
-     * @param nodeId
-     * @param env
-     * @return
-     */
-    @GetMapping(value = "/instance/meta/{id}/{nodeId}")
-    public BaseModel<Map<String, String>> meta(@PathVariable Long id, @PathVariable Long nodeId,
-                                               @PathVariable String env) {
-        return BaseModel.getInstance(canalInstanceConfigService.remoteInstanceMeta(id, nodeId));
-    }
-
     /**
      * 通过Server id获取所有活动的Instance
      *
diff --git a/admin/admin-web/src/main/java/com/alibaba/otter/canal/admin/service/CanalInstanceService.java b/admin/admin-web/src/main/java/com/alibaba/otter/canal/admin/service/CanalInstanceService.java
index 0ed45378..fedd188c 100644
--- a/admin/admin-web/src/main/java/com/alibaba/otter/canal/admin/service/CanalInstanceService.java
+++ b/admin/admin-web/src/main/java/com/alibaba/otter/canal/admin/service/CanalInstanceService.java
@@ -26,8 +26,6 @@ public interface CanalInstanceService {
 
     Map<String, String> remoteInstanceLog(Long id, Long nodeId);
 
-    Map<String, String> remoteInstanceMeta(Long id, Long nodeId);
-
     boolean remoteOperation(Long id, Long nodeId, String option);
 
     boolean instanceOperation(Long id, String option);
diff --git a/admin/admin-web/src/main/java/com/alibaba/otter/canal/admin/service/impl/CanalInstanceServiceImpl.java b/admin/admin-web/src/main/java/com/alibaba/otter/canal/admin/service/impl/CanalInstanceServiceImpl.java
index 5e0408d3..4d1a9d83 100644
--- a/admin/admin-web/src/main/java/com/alibaba/otter/canal/admin/service/impl/CanalInstanceServiceImpl.java
+++ b/admin/admin-web/src/main/java/com/alibaba/otter/canal/admin/service/impl/CanalInstanceServiceImpl.java
@@ -1,10 +1,8 @@
 package com.alibaba.otter.canal.admin.service.impl;
 
-import com.alibaba.otter.canal.common.zookeeper.ZkClientx;
 import io.ebean.Query;
 
 import java.security.NoSuchAlgorithmException;
-import java.text.MessageFormat;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collections;
@@ -258,33 +256,6 @@ public class CanalInstanceServiceImpl implements CanalInstanceService {
         return result;
     }
 
-    @Override
-    public Map<String, String> remoteInstanceMeta(final Long id, final Long nodeId) {
-        Map<String, String> result = new HashMap<>();
-
-        NodeServer nodeServer = NodeServer.find.byId(nodeId);
-        if (nodeServer == null) {
-            return result;
-        }
-        CanalInstanceConfig canalInstanceConfig = CanalInstanceConfig.find.byId(id);
-        if (canalInstanceConfig == null) {
-            return result;
-        }
-        String meta;
-        if (nodeServer.getCanalCluster() != null) {
-            ZkClientx zkClientx = ZkClientx.getZkClient(nodeServer.getCanalCluster().getZkHosts());
-            String zkPath = MessageFormat.format("/{0}/{1}/{2}/{3}/{4}/{5}", "otter", "canal", "destinations", canalInstanceConfig.getName(), "1001", "cursor");
-            meta = new String((byte[]) zkClientx.readData(zkPath));
-        } else {
-            meta = SimpleAdminConnectors.execute(nodeServer.getIp(),
-                    nodeServer.getAdminPort(),
-                    adminConnector -> adminConnector.instanceMeta(canalInstanceConfig.getName(), "meta.dat"));
-        }
-        result.put("instance", canalInstanceConfig.getName());
-        result.put("meta", meta);
-        return result;
-    }
-
     public boolean remoteOperation(Long id, Long nodeId, String option) {
         NodeServer nodeServer = null;
         if ("start".equals(option)) {
diff --git a/admin/admin-web/src/main/resources/canal-template.properties b/admin/admin-web/src/main/resources/canal-template.properties
index 381c913f..8a104e68 100644
--- a/admin/admin-web/src/main/resources/canal-template.properties
+++ b/admin/admin-web/src/main/resources/canal-template.properties
@@ -8,11 +8,11 @@ canal.register.ip =
 canal.port = 11111
 canal.metrics.pull.port = 11112
 # canal instance user/passwd
-canal.user = canal
-canal.passwd = E3619321C1A937C46A0D8BD1DAC39F93B27D4458
+# canal.user = canal
+# canal.passwd = E3619321C1A937C46A0D8BD1DAC39F93B27D4458
 
 # canal admin config
-canal.admin.manager = 127.0.0.1:8089
+#canal.admin.manager = 127.0.0.1:8089
 canal.admin.port = 11110
 canal.admin.user = admin
 canal.admin.passwd = 4ACFE3202A5FF5CF467898FC58AAB1D615029441
@@ -21,7 +21,7 @@ canal.zkServers =
 # flush data to zk
 canal.zookeeper.flush.period = 1000
 canal.withoutNetty = false
-# tcp, kafka, RocketMQ
+# tcp, kafka, rocketMQ, rabbitMQ
 canal.serverMode = tcp
 # flush meta cursor/parse position to file
 canal.file.data.dir = ${canal.conf.dir}
@@ -86,14 +86,10 @@ canal.instance.tsdb.snapshot.interval = 24
 # purge snapshot expire , default 360 hour(15 days)
 canal.instance.tsdb.snapshot.expire = 360
 
-# aliyun ak/sk , support rds/mq
-canal.aliyun.accessKey =
-canal.aliyun.secretKey =
-
 #################################################
 ######### 		destinations		#############
 #################################################
-canal.destinations =
+canal.destinations = 
 # conf root dir
 canal.conf.dir = ../conf
 # auto scan instance dir add/remove and start/stop instance
@@ -111,29 +107,56 @@ canal.instance.global.spring.xml = classpath:spring/file-instance.xml
 #canal.instance.global.spring.xml = classpath:spring/default-instance.xml
 
 ##################################################
-######### 		     MQ 		     #############
+######### 	      MQ Properties      #############
 ##################################################
-canal.mq.servers = 127.0.0.1:6667
-canal.mq.retries = 0
-canal.mq.batchSize = 16384
-canal.mq.maxRequestSize = 1048576
-canal.mq.lingerMs = 100
-canal.mq.bufferMemory = 33554432
+# aliyun ak/sk , support rds/mq
+canal.aliyun.accessKey =
+canal.aliyun.secretKey =
+canal.aliyun.uid=
+
+canal.mq.flatMessage = true
 canal.mq.canalBatchSize = 50
 canal.mq.canalGetTimeout = 100
-canal.mq.flatMessage = true
-canal.mq.compressionType = none
-canal.mq.acks = all
-#canal.mq.properties. =
-canal.mq.producerGroup = test
 # Set this value to "cloud", if you want open message trace feature in aliyun.
 canal.mq.accessChannel = local
-# aliyun mq namespace
-#canal.mq.namespace =
+
+canal.mq.database.hash = true
+canal.mq.send.thread.size = 30
+canal.mq.build.thread.size = 8
 
 ##################################################
-#########     Kafka Kerberos Info    #############
+######### 		     Kafka 		     #############
 ##################################################
-canal.mq.kafka.kerberos.enable = false
-canal.mq.kafka.kerberos.krb5FilePath = "../conf/kerberos/krb5.conf"
-canal.mq.kafka.kerberos.jaasFilePath = "../conf/kerberos/jaas.conf"
+kafka.bootstrap.servers = 127.0.0.1:6667
+kafka.acks = all
+kafka.compression.type = none
+kafka.batch.size = 16384
+kafka.linger.ms = 1
+kafka.max.request.size = 1048576
+kafka.buffer.memory = 33554432
+kafka.max.in.flight.requests.per.connection = 1
+kafka.retries = 0
+
+kafka.kerberos.enable = false
+kafka.kerberos.krb5.file = "../conf/kerberos/krb5.conf"
+kafka.kerberos.jaas.file = "../conf/kerberos/jaas.conf"
+
+##################################################
+######### 		    RocketMQ	     #############
+##################################################
+rocketmq.producer.group = test
+rocketmq.enable.message.trace = false
+rocketmq.customized.trace.topic =
+rocketmq.namespace =
+rocketmq.namesrv.addr = 127.0.0.1:9876
+rocketmq.retry.times.when.send.failed = 0
+rocketmq.vip.channel.enabled = false
+
+##################################################
+######### 		    RabbitMQ	     #############
+##################################################
+rabbitmq.host =
+rabbitmq.virtual.host =
+rabbitmq.exchange =
+rabbitmq.username =
+rabbitmq.password =
\ No newline at end of file
diff --git a/admin/pom.xml b/admin/pom.xml
index 5f8b45df..f92fe477 100644
--- a/admin/pom.xml
+++ b/admin/pom.xml
@@ -69,7 +69,7 @@
             <dependency>
                 <groupId>mysql</groupId>
                 <artifactId>mysql-connector-java</artifactId>
-                <version>8.0.17</version>
+                <version>5.1.48</version>
             </dependency>
             <dependency>
                 <groupId>com.github.ben-manes.caffeine</groupId>
diff --git a/client-adapter/common/src/main/java/com/alibaba/otter/canal/client/adapter/config/bind/PropertiesConfigurationFactory.java b/client-adapter/common/src/main/java/com/alibaba/otter/canal/client/adapter/config/bind/PropertiesConfigurationFactory.java
index f44c9a5a..76a97c0b 100644
--- a/client-adapter/common/src/main/java/com/alibaba/otter/canal/client/adapter/config/bind/PropertiesConfigurationFactory.java
+++ b/client-adapter/common/src/main/java/com/alibaba/otter/canal/client/adapter/config/bind/PropertiesConfigurationFactory.java
@@ -282,7 +282,7 @@ public class PropertiesConfigurationFactory<T> implements FactoryBean<T>, Applic
             PropertyDescriptor[] descriptors = BeanUtils.getPropertyDescriptors(this.target.getClass());
             for (PropertyDescriptor descriptor : descriptors) {
                 String name = descriptor.getName();
-                if (!"class".equals(name)) {
+                if (!name.equals("class")) {
                     RelaxedNames relaxedNames = RelaxedNames.forCamelCase(name);
                     if (prefixes == null) {
                         for (String relaxedName : relaxedNames) {
diff --git a/client-adapter/common/src/main/java/com/alibaba/otter/canal/client/adapter/support/JdbcTypeUtil.java b/client-adapter/common/src/main/java/com/alibaba/otter/canal/client/adapter/support/JdbcTypeUtil.java
index a9a27960..4dd061c6 100644
--- a/client-adapter/common/src/main/java/com/alibaba/otter/canal/client/adapter/support/JdbcTypeUtil.java
+++ b/client-adapter/common/src/main/java/com/alibaba/otter/canal/client/adapter/support/JdbcTypeUtil.java
@@ -78,7 +78,7 @@ public class JdbcTypeUtil {
 
     public static Object typeConvert(String tableName ,String columnName, String value, int sqlType, String mysqlType) {
         if (value == null
-            || ("".equals(value) && !(isText(mysqlType) || sqlType == Types.CHAR || sqlType == Types.VARCHAR || sqlType == Types.LONGVARCHAR))) {
+            || (value.equals("") && !(isText(mysqlType) || sqlType == Types.CHAR || sqlType == Types.VARCHAR || sqlType == Types.LONGVARCHAR))) {
             return null;
         }
 
diff --git a/client-adapter/common/src/main/java/com/alibaba/otter/canal/client/adapter/support/MessageUtil.java b/client-adapter/common/src/main/java/com/alibaba/otter/canal/client/adapter/support/MessageUtil.java
index 8d12debc..d0b42951 100644
--- a/client-adapter/common/src/main/java/com/alibaba/otter/canal/client/adapter/support/MessageUtil.java
+++ b/client-adapter/common/src/main/java/com/alibaba/otter/canal/client/adapter/support/MessageUtil.java
@@ -38,6 +38,7 @@ public class MessageUtil {
             CanalEntry.EventType eventType = rowChange.getEventType();
 
             final Dml dml = new Dml();
+            dml.setIsDdl(rowChange.getIsDdl());
             dml.setDestination(destination);
             dml.setGroupId(groupId);
             dml.setDatabase(entry.getHeader().getSchemaName());
diff --git a/client-adapter/escore/src/main/java/com/alibaba/otter/canal/client/adapter/es/core/service/ESSyncService.java b/client-adapter/escore/src/main/java/com/alibaba/otter/canal/client/adapter/es/core/service/ESSyncService.java
index 7b4b86a3..4ca23af2 100644
--- a/client-adapter/escore/src/main/java/com/alibaba/otter/canal/client/adapter/es/core/service/ESSyncService.java
+++ b/client-adapter/escore/src/main/java/com/alibaba/otter/canal/client/adapter/es/core/service/ESSyncService.java
@@ -95,11 +95,11 @@ public class ESSyncService {
             long begin = System.currentTimeMillis();
 
             String type = dml.getType();
-            if (type != null && "INSERT".equalsIgnoreCase(type)) {
+            if (type != null && type.equalsIgnoreCase("INSERT")) {
                 insert(config, dml);
-            } else if (type != null && "UPDATE".equalsIgnoreCase(type)) {
+            } else if (type != null && type.equalsIgnoreCase("UPDATE")) {
                 update(config, dml);
-            } else if (type != null && "DELETE".equalsIgnoreCase(type)) {
+            } else if (type != null && type.equalsIgnoreCase("DELETE")) {
                 delete(config, dml);
             } else {
                 return;
diff --git a/client-adapter/hbase/src/main/java/com/alibaba/otter/canal/client/adapter/hbase/config/MappingConfig.java b/client-adapter/hbase/src/main/java/com/alibaba/otter/canal/client/adapter/hbase/config/MappingConfig.java
index 4940a58c..21ac327c 100644
--- a/client-adapter/hbase/src/main/java/com/alibaba/otter/canal/client/adapter/hbase/config/MappingConfig.java
+++ b/client-adapter/hbase/src/main/java/com/alibaba/otter/canal/client/adapter/hbase/config/MappingConfig.java
@@ -312,7 +312,7 @@ public class MappingConfig implements AdapterConfig {
                         columnItem.setRowKey(true);
                         rowKeyColumn = columnItem;
                     } else {
-                        if (field == null || "".equals(field)) {
+                        if (field == null || field.equals("")) {
                             columnItem.setFamily(family);
                             columnItem.setQualifier(columnField.getKey());
                         } else {
diff --git a/client-adapter/hbase/src/main/java/com/alibaba/otter/canal/client/adapter/hbase/service/HbaseSyncService.java b/client-adapter/hbase/src/main/java/com/alibaba/otter/canal/client/adapter/hbase/service/HbaseSyncService.java
index b4464cab..e0dc1279 100644
--- a/client-adapter/hbase/src/main/java/com/alibaba/otter/canal/client/adapter/hbase/service/HbaseSyncService.java
+++ b/client-adapter/hbase/src/main/java/com/alibaba/otter/canal/client/adapter/hbase/service/HbaseSyncService.java
@@ -31,11 +31,11 @@ public class HbaseSyncService {
     public void sync(MappingConfig config, Dml dml) {
         if (config != null) {
             String type = dml.getType();
-            if (type != null && "INSERT".equalsIgnoreCase(type)) {
+            if (type != null && type.equalsIgnoreCase("INSERT")) {
                 insert(config, dml);
-            } else if (type != null && "UPDATE".equalsIgnoreCase(type)) {
+            } else if (type != null && type.equalsIgnoreCase("UPDATE")) {
                 update(config, dml);
-            } else if (type != null && "DELETE".equalsIgnoreCase(type)) {
+            } else if (type != null && type.equalsIgnoreCase("DELETE")) {
                 delete(config, dml);
             }
             if (logger.isDebugEnabled()) {
diff --git a/client-adapter/kudu/pom.xml b/client-adapter/kudu/pom.xml
index 10c87858..3024a638 100644
--- a/client-adapter/kudu/pom.xml
+++ b/client-adapter/kudu/pom.xml
@@ -34,7 +34,7 @@
         <dependency>
             <groupId>mysql</groupId>
             <artifactId>mysql-connector-java</artifactId>
-            <version>5.1.47</version>
+            <version>5.1.48</version>
             <scope>test</scope>
         </dependency>
     </dependencies>
@@ -84,4 +84,4 @@
         </plugins>
     </build>
 
-</project>
\ No newline at end of file
+</project>
diff --git a/client-adapter/kudu/src/main/java/com/alibaba/otter/canal/client/adapter/kudu/service/KuduSyncService.java b/client-adapter/kudu/src/main/java/com/alibaba/otter/canal/client/adapter/kudu/service/KuduSyncService.java
index 4f5ca799..d388b410 100644
--- a/client-adapter/kudu/src/main/java/com/alibaba/otter/canal/client/adapter/kudu/service/KuduSyncService.java
+++ b/client-adapter/kudu/src/main/java/com/alibaba/otter/canal/client/adapter/kudu/service/KuduSyncService.java
@@ -47,11 +47,11 @@ public class KuduSyncService {
     public void sync(KuduMappingConfig config, Dml dml) {
         if (config != null) {
             String type = dml.getType();
-            if (type != null && "INSERT".equalsIgnoreCase(type)) {
+            if (type != null && type.equalsIgnoreCase("INSERT")) {
                 insert(config, dml);
-            } else if (type != null && "UPDATE".equalsIgnoreCase(type)) {
+            } else if (type != null && type.equalsIgnoreCase("UPDATE")) {
                 upsert(config, dml);
-            } else if (type != null && "DELETE".equalsIgnoreCase(type)) {
+            } else if (type != null && type.equalsIgnoreCase("DELETE")) {
                 delete(config, dml);
             }
             if (logger.isDebugEnabled()) {
diff --git a/client-adapter/launcher/src/main/java/com/alibaba/otter/canal/adapter/launcher/config/CuratorClient.java b/client-adapter/launcher/src/main/java/com/alibaba/otter/canal/adapter/launcher/config/CuratorClient.java
index 0ec60392..ecef9199 100644
--- a/client-adapter/launcher/src/main/java/com/alibaba/otter/canal/adapter/launcher/config/CuratorClient.java
+++ b/client-adapter/launcher/src/main/java/com/alibaba/otter/canal/adapter/launcher/config/CuratorClient.java
@@ -3,6 +3,7 @@ package com.alibaba.otter.canal.adapter.launcher.config;
 import javax.annotation.PostConstruct;
 import javax.annotation.Resource;
 
+import org.apache.commons.lang.StringUtils;
 import org.apache.curator.framework.CuratorFramework;
 import org.apache.curator.framework.CuratorFrameworkFactory;
 import org.apache.curator.retry.ExponentialBackoffRetry;
@@ -24,7 +25,7 @@ public class CuratorClient {
 
     @PostConstruct
     public void init() {
-        if (adapterCanalConfig.getZookeeperHosts() != null) {
+        if (StringUtils.isNotEmpty(adapterCanalConfig.getZookeeperHosts())) {
             curator = CuratorFrameworkFactory.builder()
                 .connectString(adapterCanalConfig.getZookeeperHosts())
                 .retryPolicy(new ExponentialBackoffRetry(1000, 3))
diff --git a/client-adapter/launcher/src/main/java/com/alibaba/otter/canal/adapter/launcher/rest/CommonRest.java b/client-adapter/launcher/src/main/java/com/alibaba/otter/canal/adapter/launcher/rest/CommonRest.java
index a7aa1afb..32b39f47 100644
--- a/client-adapter/launcher/src/main/java/com/alibaba/otter/canal/adapter/launcher/rest/CommonRest.java
+++ b/client-adapter/launcher/src/main/java/com/alibaba/otter/canal/adapter/launcher/rest/CommonRest.java
@@ -181,11 +181,11 @@ public class CommonRest {
      */
     @PutMapping("/syncSwitch/{destination}/{status}")
     public Result etl(@PathVariable String destination, @PathVariable String status) {
-        if ("on".equals(status)) {
+        if (status.equals("on")) {
             syncSwitch.on(destination);
             logger.info("#Destination: {} sync on", destination);
             return Result.createSuccess("实例: " + destination + " 开启同步成功");
-        } else if ("off".equals(status)) {
+        } else if (status.equals("off")) {
             syncSwitch.off(destination);
             logger.info("#Destination: {} sync off", destination);
             return Result.createSuccess("实例: " + destination + " 关闭同步成功");
diff --git a/client-adapter/pom.xml b/client-adapter/pom.xml
index 40006023..7b80e831 100644
--- a/client-adapter/pom.xml
+++ b/client-adapter/pom.xml
@@ -50,7 +50,7 @@
     <repositories>
         <repository>
             <id>central</id>
-            <url>https://repo1.maven.org/maven2</url>
+            <url>http://repo1.maven.org/maven2</url>
             <releases>
                 <enabled>true</enabled>
             </releases>
@@ -143,7 +143,7 @@
             <dependency>
                 <groupId>com.h2database</groupId>
                 <artifactId>h2</artifactId>
-                <version>1.4.196</version>
+                <version>1.4.192</version>
             </dependency>
             <!-- 单独引入rocketmq依赖 -->
             <dependency>
@@ -172,7 +172,7 @@
             <dependency>
                 <groupId>mysql</groupId>
                 <artifactId>mysql-connector-java</artifactId>
-                <version>5.1.47</version>
+                <version>5.1.48</version>
             </dependency>
             <dependency>
                 <groupId>org.postgresql</groupId>
diff --git a/client-adapter/rdb/src/main/java/com/alibaba/otter/canal/client/adapter/rdb/service/RdbSyncService.java b/client-adapter/rdb/src/main/java/com/alibaba/otter/canal/client/adapter/rdb/service/RdbSyncService.java
index 64015268..d27bb544 100644
--- a/client-adapter/rdb/src/main/java/com/alibaba/otter/canal/client/adapter/rdb/service/RdbSyncService.java
+++ b/client-adapter/rdb/src/main/java/com/alibaba/otter/canal/client/adapter/rdb/service/RdbSyncService.java
@@ -112,12 +112,14 @@ public class RdbSyncService {
 
                     futures.add(executorThreads[i].submit(() -> {
                         try {
-                            dmlsPartition[j]
-                                .forEach(syncItem -> sync(batchExecutors[j], syncItem.config, syncItem.singleDml));
+                            dmlsPartition[j].forEach(syncItem -> sync(batchExecutors[j],
+                                syncItem.config,
+                                syncItem.singleDml));
                             dmlsPartition[j].clear();
                             batchExecutors[j].commit();
                             return true;
                         } catch (Throwable e) {
+                            dmlsPartition[j].clear();
                             batchExecutors[j].rollback();
                             throw new RuntimeException(e);
                         }
@@ -151,50 +153,50 @@ public class RdbSyncService {
         sync(dmls, dml -> {
             if (dml.getIsDdl() != null && dml.getIsDdl() && StringUtils.isNotEmpty(dml.getSql())) {
                 // DDL
-                columnsTypeCache.remove(dml.getDestination() + "." + dml.getDatabase() + "." + dml.getTable());
-                return false;
+            columnsTypeCache.remove(dml.getDestination() + "." + dml.getDatabase() + "." + dml.getTable());
+            return false;
+        } else {
+            // DML
+            String destination = StringUtils.trimToEmpty(dml.getDestination());
+            String groupId = StringUtils.trimToEmpty(dml.getGroupId());
+            String database = dml.getDatabase();
+            String table = dml.getTable();
+            Map<String, MappingConfig> configMap;
+            if (envProperties != null && !"tcp".equalsIgnoreCase(envProperties.getProperty("canal.conf.mode"))) {
+                configMap = mappingConfig.get(destination + "-" + groupId + "_" + database + "-" + table);
             } else {
-                // DML
-                String destination = StringUtils.trimToEmpty(dml.getDestination());
-                String groupId = StringUtils.trimToEmpty(dml.getGroupId());
-                String database = dml.getDatabase();
-                String table = dml.getTable();
-                Map<String, MappingConfig> configMap;
-                if (envProperties != null && !"tcp".equalsIgnoreCase(envProperties.getProperty("canal.conf.mode"))) {
-                    configMap = mappingConfig.get(destination + "-" + groupId + "_" + database + "-" + table);
-                } else {
-                    configMap = mappingConfig.get(destination + "_" + database + "-" + table);
-                }
-
-                if (configMap == null) {
-                    return false;
-                }
-
-                if (configMap.values().isEmpty()) {
-                    return false;
-                }
-
-                for (MappingConfig config : configMap.values()) {
-                    boolean caseInsensitive = config.getDbMapping().isCaseInsensitive();
-                    if (config.getConcurrent()) {
-                        List<SingleDml> singleDmls = SingleDml.dml2SingleDmls(dml, caseInsensitive);
-                        singleDmls.forEach(singleDml -> {
-                            int hash = pkHash(config.getDbMapping(), singleDml.getData());
-                            SyncItem syncItem = new SyncItem(config, singleDml);
-                            dmlsPartition[hash].add(syncItem);
-                        });
-                    } else {
-                        int hash = 0;
-                        List<SingleDml> singleDmls = SingleDml.dml2SingleDmls(dml, caseInsensitive);
-                        singleDmls.forEach(singleDml -> {
-                            SyncItem syncItem = new SyncItem(config, singleDml);
-                            dmlsPartition[hash].add(syncItem);
-                        });
-                    }
-                }
-                return true;
+                configMap = mappingConfig.get(destination + "_" + database + "-" + table);
             }
-        });
+
+            if (configMap == null) {
+                return false;
+            }
+
+            if (configMap.values().isEmpty()) {
+                return false;
+            }
+
+            for (MappingConfig config : configMap.values()) {
+                boolean caseInsensitive = config.getDbMapping().isCaseInsensitive();
+                if (config.getConcurrent()) {
+                    List<SingleDml> singleDmls = SingleDml.dml2SingleDmls(dml, caseInsensitive);
+                    singleDmls.forEach(singleDml -> {
+                        int hash = pkHash(config.getDbMapping(), singleDml.getData());
+                        SyncItem syncItem = new SyncItem(config, singleDml);
+                        dmlsPartition[hash].add(syncItem);
+                    });
+                } else {
+                    int hash = 0;
+                    List<SingleDml> singleDmls = SingleDml.dml2SingleDmls(dml, caseInsensitive);
+                    singleDmls.forEach(singleDml -> {
+                        SyncItem syncItem = new SyncItem(config, singleDml);
+                        dmlsPartition[hash].add(syncItem);
+                    });
+                }
+            }
+            return true;
+        }
+    }   );
     }
 
     /**
@@ -208,13 +210,13 @@ public class RdbSyncService {
         if (config != null) {
             try {
                 String type = dml.getType();
-                if (type != null && "INSERT".equalsIgnoreCase(type)) {
+                if (type != null && type.equalsIgnoreCase("INSERT")) {
                     insert(batchExecutor, config, dml);
-                } else if (type != null && "UPDATE".equalsIgnoreCase(type)) {
+                } else if (type != null && type.equalsIgnoreCase("UPDATE")) {
                     update(batchExecutor, config, dml);
-                } else if (type != null && "DELETE".equalsIgnoreCase(type)) {
+                } else if (type != null && type.equalsIgnoreCase("DELETE")) {
                     delete(batchExecutor, config, dml);
-                } else if (type != null && "TRUNCATE".equalsIgnoreCase(type)) {
+                } else if (type != null && type.equalsIgnoreCase("TRUNCATE")) {
                     truncate(batchExecutor, config);
                 }
                 if (logger.isDebugEnabled()) {
@@ -245,7 +247,10 @@ public class RdbSyncService {
         StringBuilder insertSql = new StringBuilder();
         insertSql.append("INSERT INTO ").append(SyncUtil.getDbTableName(dbMapping)).append(" (");
 
-        columnsMap.forEach((targetColumnName, srcColumnName) -> insertSql.append("`").append(targetColumnName).append("`").append(","));
+        columnsMap.forEach((targetColumnName, srcColumnName) -> insertSql.append("`")
+            .append(targetColumnName)
+            .append("`")
+            .append(","));
         int len = insertSql.length();
         insertSql.delete(len - 1, len).append(") VALUES (");
         int mapLen = columnsMap.size();
diff --git a/client-adapter/rdb/src/main/java/com/alibaba/otter/canal/client/adapter/rdb/support/SyncUtil.java b/client-adapter/rdb/src/main/java/com/alibaba/otter/canal/client/adapter/rdb/support/SyncUtil.java
index 88f1ec94..25247642 100644
--- a/client-adapter/rdb/src/main/java/com/alibaba/otter/canal/client/adapter/rdb/support/SyncUtil.java
+++ b/client-adapter/rdb/src/main/java/com/alibaba/otter/canal/client/adapter/rdb/support/SyncUtil.java
@@ -71,7 +71,7 @@ public class SyncUtil {
                 if (value instanceof Boolean) {
                     pstmt.setBoolean(i, (Boolean) value);
                 } else if (value instanceof String) {
-                    boolean v = !"0".equals(value);
+                    boolean v = !value.equals("0");
                     pstmt.setBoolean(i, v);
                 } else if (value instanceof Number) {
                     boolean v = ((Number) value).intValue() != 0;
diff --git a/connector/core/src/main/java/com/alibaba/otter/canal/connector/core/config/CanalConstants.java b/connector/core/src/main/java/com/alibaba/otter/canal/connector/core/config/CanalConstants.java
index 0a9f8256..24c74278 100644
--- a/connector/core/src/main/java/com/alibaba/otter/canal/connector/core/config/CanalConstants.java
+++ b/connector/core/src/main/java/com/alibaba/otter/canal/connector/core/config/CanalConstants.java
@@ -12,12 +12,14 @@ public class CanalConstants {
 
     public static final String CANAL_FILTER_TRANSACTION_ENTRY = ROOT + "." + "instance.filter.transaction.entry";
 
-    public static final String CANAL_MQ_FLAT_MESSAGE          = ROOT + "." + "mq.flat.message";
+    public static final String CANAL_MQ_ACCESS_CHANNEL        = ROOT + "." + "mq.accessChannel";
+    public static final String CANAL_MQ_CANAL_BATCH_SIZE      = ROOT + "." + "mq.canalBatchSize";
+    public static final String CANAL_MQ_CANAL_GET_TIMEOUT     = ROOT + "." + "mq.canalGetTimeout";
+    public static final String CANAL_MQ_FLAT_MESSAGE          = ROOT + "." + "mq.flatMessage";
+
     public static final String CANAL_MQ_DATABASE_HASH         = ROOT + "." + "mq.database.hash";
-    public static final String CANAL_MQ_PARALLEL_THREAD_SIZE  = ROOT + "." + "mq.parallel.thread.size";
-    public static final String CANAL_MQ_CANAL_BATCH_SIZE      = ROOT + "." + "mq.canal.batch.size";
-    public static final String CANAL_MQ_CANAL_FETCH_TIMEOUT   = ROOT + "." + "mq.canal.fetch.timeout";
-    public static final String CANAL_MQ_ACCESS_CHANNEL        = ROOT + "." + "mq.access.channel";
+    public static final String CANAL_MQ_BUILD_THREAD_SIZE     = ROOT + "." + "mq.build.thread.size";
+    public static final String CANAL_MQ_SEND_THREAD_SIZE      = ROOT + "." + "mq.send.thread.size";
 
     public static final String CANAL_ALIYUN_ACCESS_KEY        = ROOT + "." + "aliyun.accessKey";
     public static final String CANAL_ALIYUN_SECRET_KEY        = ROOT + "." + "aliyun.secretKey";
diff --git a/connector/core/src/main/java/com/alibaba/otter/canal/connector/core/config/MQProperties.java b/connector/core/src/main/java/com/alibaba/otter/canal/connector/core/config/MQProperties.java
index fcd7c3db..072d0ebb 100644
--- a/connector/core/src/main/java/com/alibaba/otter/canal/connector/core/config/MQProperties.java
+++ b/connector/core/src/main/java/com/alibaba/otter/canal/connector/core/config/MQProperties.java
@@ -8,17 +8,18 @@ package com.alibaba.otter.canal.connector.core.config;
  */
 public class MQProperties {
 
-    private boolean flatMessage            = true;
-    private boolean databaseHash           = true;
-    private boolean filterTransactionEntry = true;
-    private Integer parallelThreadSize     = 8;
-    private Integer fetchTimeout           = 100;
-    private Integer batchSize              = 50;
-    private String  accessChannel          = "local";
+    private boolean flatMessage             = true;
+    private boolean databaseHash            = true;
+    private boolean filterTransactionEntry  = true;
+    private Integer parallelBuildThreadSize = 8;
+    private Integer parallelSendThreadSize  = 30;
+    private Integer fetchTimeout            = 100;
+    private Integer batchSize               = 50;
+    private String  accessChannel           = "local";
 
-    private String  aliyunAccessKey        = "";
-    private String  aliyunSecretKey        = "";
-    private int     aliyunUid              = 0;
+    private String  aliyunAccessKey         = "";
+    private String  aliyunSecretKey         = "";
+    private int     aliyunUid               = 0;
 
     public boolean isFlatMessage() {
         return flatMessage;
@@ -44,12 +45,20 @@ public class MQProperties {
         this.filterTransactionEntry = filterTransactionEntry;
     }
 
-    public Integer getParallelThreadSize() {
-        return parallelThreadSize;
+    public Integer getParallelBuildThreadSize() {
+        return parallelBuildThreadSize;
     }
 
-    public void setParallelThreadSize(Integer parallelThreadSize) {
-        this.parallelThreadSize = parallelThreadSize;
+    public void setParallelBuildThreadSize(Integer parallelBuildThreadSize) {
+        this.parallelBuildThreadSize = parallelBuildThreadSize;
+    }
+
+    public Integer getParallelSendThreadSize() {
+        return parallelSendThreadSize;
+    }
+
+    public void setParallelSendThreadSize(Integer parallelSendThreadSize) {
+        this.parallelSendThreadSize = parallelSendThreadSize;
     }
 
     public Integer getFetchTimeout() {
diff --git a/connector/core/src/main/java/com/alibaba/otter/canal/connector/core/producer/AbstractMQProducer.java b/connector/core/src/main/java/com/alibaba/otter/canal/connector/core/producer/AbstractMQProducer.java
index 98e35381..940e8fc5 100644
--- a/connector/core/src/main/java/com/alibaba/otter/canal/connector/core/producer/AbstractMQProducer.java
+++ b/connector/core/src/main/java/com/alibaba/otter/canal/connector/core/producer/AbstractMQProducer.java
@@ -22,20 +22,30 @@ public abstract class AbstractMQProducer implements CanalMQProducer {
 
     protected MQProperties       mqProperties;
 
-    protected ThreadPoolExecutor executor;
+    protected ThreadPoolExecutor sendExecutor;
+    protected ThreadPoolExecutor buildExecutor;
 
     @Override
     public void init(Properties properties) {
         // parse canal mq properties
         loadCanalMqProperties(properties);
 
-        int parallelThreadSize = mqProperties.getParallelThreadSize();
-        executor = new ThreadPoolExecutor(parallelThreadSize,
-            parallelThreadSize,
+        int parallelBuildThreadSize = mqProperties.getParallelBuildThreadSize();
+        buildExecutor = new ThreadPoolExecutor(parallelBuildThreadSize,
+            parallelBuildThreadSize,
             0,
             TimeUnit.SECONDS,
-            new ArrayBlockingQueue<Runnable>(parallelThreadSize * 2),
-            new NamedThreadFactory("MQParallel"),
+            new ArrayBlockingQueue<Runnable>(parallelBuildThreadSize * 2),
+            new NamedThreadFactory("MQ-Parallel-Builder"),
+            new ThreadPoolExecutor.CallerRunsPolicy());
+
+        int parallelSendThreadSize = mqProperties.getParallelSendThreadSize();
+        sendExecutor = new ThreadPoolExecutor(parallelSendThreadSize,
+            parallelSendThreadSize,
+            0,
+            TimeUnit.SECONDS,
+            new ArrayBlockingQueue<Runnable>(parallelSendThreadSize * 2),
+            new NamedThreadFactory("MQ-Parallel-Sender"),
             new ThreadPoolExecutor.CallerRunsPolicy());
     }
 
@@ -46,8 +56,12 @@ public abstract class AbstractMQProducer implements CanalMQProducer {
 
     @Override
     public void stop() {
-        if (executor != null) {
-            executor.shutdownNow();
+        if (buildExecutor != null) {
+            buildExecutor.shutdownNow();
+        }
+
+        if (sendExecutor != null) {
+            sendExecutor.shutdownNow();
         }
     }
 
@@ -57,7 +71,8 @@ public abstract class AbstractMQProducer implements CanalMQProducer {
      * canal.mq.flat.message = true <br/>
      * canal.mq.database.hash = true <br/>
      * canal.mq.filter.transaction.entry = true <br/>
-     * canal.mq.parallel.thread.size = 8 <br/>
+     * canal.mq.parallel.build.thread.size = 8 <br/>
+     * canal.mq.parallel.send.thread.size = 8 <br/>
      * canal.mq.batch.size = 50 <br/>
      * canal.mq.timeout = 100 <br/>
      * canal.mq.access.channel = local <br/>
@@ -70,6 +85,7 @@ public abstract class AbstractMQProducer implements CanalMQProducer {
         if (!StringUtils.isEmpty(flatMessage)) {
             mqProperties.setFlatMessage(Boolean.parseBoolean(flatMessage));
         }
+
         String databaseHash = properties.getProperty(CanalConstants.CANAL_MQ_DATABASE_HASH);
         if (!StringUtils.isEmpty(databaseHash)) {
             mqProperties.setDatabaseHash(Boolean.parseBoolean(databaseHash));
@@ -78,15 +94,19 @@ public abstract class AbstractMQProducer implements CanalMQProducer {
         if (!StringUtils.isEmpty(filterTranEntry)) {
             mqProperties.setFilterTransactionEntry(Boolean.parseBoolean(filterTranEntry));
         }
-        String parallelThreadSize = properties.getProperty(CanalConstants.CANAL_MQ_PARALLEL_THREAD_SIZE);
-        if (!StringUtils.isEmpty(parallelThreadSize)) {
-            mqProperties.setParallelThreadSize(Integer.parseInt(parallelThreadSize));
+        String parallelBuildThreadSize = properties.getProperty(CanalConstants.CANAL_MQ_BUILD_THREAD_SIZE);
+        if (!StringUtils.isEmpty(parallelBuildThreadSize)) {
+            mqProperties.setParallelBuildThreadSize(Integer.parseInt(parallelBuildThreadSize));
+        }
+        String parallelSendThreadSize = properties.getProperty(CanalConstants.CANAL_MQ_SEND_THREAD_SIZE);
+        if (!StringUtils.isEmpty(parallelSendThreadSize)) {
+            mqProperties.setParallelSendThreadSize(Integer.parseInt(parallelSendThreadSize));
         }
         String batchSize = properties.getProperty(CanalConstants.CANAL_MQ_CANAL_BATCH_SIZE);
         if (!StringUtils.isEmpty(batchSize)) {
             mqProperties.setBatchSize(Integer.parseInt(batchSize));
         }
-        String timeOut = properties.getProperty(CanalConstants.CANAL_MQ_CANAL_FETCH_TIMEOUT);
+        String timeOut = properties.getProperty(CanalConstants.CANAL_MQ_CANAL_GET_TIMEOUT);
         if (!StringUtils.isEmpty(timeOut)) {
             mqProperties.setFetchTimeout(Integer.parseInt(timeOut));
         }
@@ -107,4 +127,14 @@ public abstract class AbstractMQProducer implements CanalMQProducer {
             mqProperties.setAliyunUid(Integer.parseInt(aliyunUid));
         }
     }
+
+    /**
+     * 兼容下<=1.1.4的mq配置项
+     */
+    protected void doMoreCompatibleConvert(String oldKey, String newKey, Properties properties) {
+        String value = properties.getProperty(oldKey);
+        if (StringUtils.isNotEmpty(value)) {
+            properties.setProperty(newKey, value);
+        }
+    }
 }
diff --git a/connector/core/src/main/java/com/alibaba/otter/canal/connector/core/producer/MQMessageUtils.java b/connector/core/src/main/java/com/alibaba/otter/canal/connector/core/producer/MQMessageUtils.java
index e1678698..ad2b4c87 100644
--- a/connector/core/src/main/java/com/alibaba/otter/canal/connector/core/producer/MQMessageUtils.java
+++ b/connector/core/src/main/java/com/alibaba/otter/canal/connector/core/producer/MQMessageUtils.java
@@ -49,7 +49,7 @@ public class MQMessageUtils {
                                                                                      int i = pkHashConfig.lastIndexOf(":");
                                                                                      if (i > 0) {
                                                                                          String pkStr = pkHashConfig.substring(i + 1);
-                                                                                         if ("$pk$".equalsIgnoreCase(pkStr)) {
+                                                                                         if (pkStr.equalsIgnoreCase("$pk$")) {
                                                                                              data.hashMode.autoPkHash = true;
                                                                                          } else {
                                                                                              data.hashMode.pkNames = Lists.newArrayList(StringUtils.split(pkStr,
diff --git a/connector/core/src/main/java/com/alibaba/otter/canal/connector/core/util/JdbcTypeUtil.java b/connector/core/src/main/java/com/alibaba/otter/canal/connector/core/util/JdbcTypeUtil.java
index ffca31a6..50053f49 100644
--- a/connector/core/src/main/java/com/alibaba/otter/canal/connector/core/util/JdbcTypeUtil.java
+++ b/connector/core/src/main/java/com/alibaba/otter/canal/connector/core/util/JdbcTypeUtil.java
@@ -78,7 +78,7 @@ public class JdbcTypeUtil {
 
     public static Object typeConvert(String tableName, String columnName, String value, int sqlType, String mysqlType) {
         if (value == null
-            || ("".equals(value) && !(isText(mysqlType) || sqlType == Types.CHAR || sqlType == Types.VARCHAR || sqlType == Types.LONGVARCHAR))) {
+            || (value.equals("") && !(isText(mysqlType) || sqlType == Types.CHAR || sqlType == Types.VARCHAR || sqlType == Types.LONGVARCHAR))) {
             return null;
         }
 
diff --git a/connector/core/src/main/java/com/alibaba/otter/canal/connector/core/util/MessageUtil.java b/connector/core/src/main/java/com/alibaba/otter/canal/connector/core/util/MessageUtil.java
index 160f04e3..1096739b 100644
--- a/connector/core/src/main/java/com/alibaba/otter/canal/connector/core/util/MessageUtil.java
+++ b/connector/core/src/main/java/com/alibaba/otter/canal/connector/core/util/MessageUtil.java
@@ -42,6 +42,7 @@ public class MessageUtil {
             CanalEntry.EventType eventType = rowChange.getEventType();
 
             final CommonMessage msg = new CommonMessage();
+            msg.setIsDdl(rowChange.getIsDdl());
             msg.setDatabase(entry.getHeader().getSchemaName());
             msg.setTable(entry.getHeader().getTableName());
             msg.setType(eventType.toString());
diff --git a/connector/kafka-connector/src/main/java/com/alibaba/otter/canal/connector/kafka/config/KafkaConstants.java b/connector/kafka-connector/src/main/java/com/alibaba/otter/canal/connector/kafka/config/KafkaConstants.java
index 8a6a1237..cbfc2a4d 100644
--- a/connector/kafka-connector/src/main/java/com/alibaba/otter/canal/connector/kafka/config/KafkaConstants.java
+++ b/connector/kafka-connector/src/main/java/com/alibaba/otter/canal/connector/kafka/config/KafkaConstants.java
@@ -8,9 +8,9 @@ package com.alibaba.otter.canal.connector.kafka.config;
  */
 public class KafkaConstants {
 
-    public static final String ROOT                              = "canal";
+    public static final String ROOT                              = "kafka";
 
-    public static final String CANAL_MQ_KAFKA_KERBEROS_ENABLE    = ROOT + "." + "mq.kafka.kerberos.enable";
-    public static final String CANAL_MQ_KAFKA_KERBEROS_KRB5_FILE = ROOT + "." + "mq.kafka.kerberos.krb5.file";
-    public static final String CANAL_MQ_KAFKA_KERBEROS_JAAS_FILE = ROOT + "." + "mq.kafka.kerberos.jaas.file";
+    public static final String CANAL_MQ_KAFKA_KERBEROS_ENABLE    = ROOT + "." + "kerberos.enable";
+    public static final String CANAL_MQ_KAFKA_KERBEROS_KRB5_FILE = ROOT + "." + "kerberos.krb5.file";
+    public static final String CANAL_MQ_KAFKA_KERBEROS_JAAS_FILE = ROOT + "." + "kerberos.jaas.file";
 }
diff --git a/connector/kafka-connector/src/main/java/com/alibaba/otter/canal/connector/kafka/producer/CanalKafkaProducer.java b/connector/kafka-connector/src/main/java/com/alibaba/otter/canal/connector/kafka/producer/CanalKafkaProducer.java
index 8f3a70c7..df50bc28 100644
--- a/connector/kafka-connector/src/main/java/com/alibaba/otter/canal/connector/kafka/producer/CanalKafkaProducer.java
+++ b/connector/kafka-connector/src/main/java/com/alibaba/otter/canal/connector/kafka/producer/CanalKafkaProducer.java
@@ -59,6 +59,7 @@ public class CanalKafkaProducer extends AbstractMQProducer implements CanalMQPro
 
         Properties kafkaProperties = new Properties();
         kafkaProperties.putAll(kafkaProducerConfig.getKafkaProperties());
+        kafkaProperties.put("max.in.flight.requests.per.connection", 1);
         kafkaProperties.put("key.serializer", StringSerializer.class);
         if (kafkaProducerConfig.isKerberosEnabled()) {
             File krb5File = new File(kafkaProducerConfig.getKrb5File());
@@ -83,6 +84,19 @@ public class CanalKafkaProducer extends AbstractMQProducer implements CanalMQPro
     private void loadKafkaProperties(Properties properties) {
         KafkaProducerConfig kafkaProducerConfig = (KafkaProducerConfig) this.mqProperties;
         Map<String, Object> kafkaProperties = kafkaProducerConfig.getKafkaProperties();
+        // 兼容下<=1.1.4的mq配置
+        doMoreCompatibleConvert("canal.mq.servers", "kafka.bootstrap.servers", properties);
+        doMoreCompatibleConvert("canal.mq.acks", "kafka.acks", properties);
+        doMoreCompatibleConvert("canal.mq.compressionType", "kafka.compression.type", properties);
+        doMoreCompatibleConvert("canal.mq.retries", "kafka.retries", properties);
+        doMoreCompatibleConvert("canal.mq.batchSize", "kafka.batch.size", properties);
+        doMoreCompatibleConvert("canal.mq.lingerMs", "kafka.linger.ms", properties);
+        doMoreCompatibleConvert("canal.mq.maxRequestSize", "kafka.max.request.size", properties);
+        doMoreCompatibleConvert("canal.mq.bufferMemory", "kafka.buffer.memory", properties);
+        doMoreCompatibleConvert("canal.mq.kafka.kerberos.enable", "kafka.kerberos.enable", properties);
+        doMoreCompatibleConvert("canal.mq.kafka.kerberos.krb5.file", "kafka.kerberos.krb5.file", properties);
+        doMoreCompatibleConvert("canal.mq.kafka.kerberos.jaas.file", "kafka.kerberos.jaas.file", properties);
+
         for (Map.Entry<Object, Object> entry : properties.entrySet()) {
             String key = (String) entry.getKey();
             Object value = entry.getValue();
@@ -91,7 +105,6 @@ public class CanalKafkaProducer extends AbstractMQProducer implements CanalMQPro
                 kafkaProperties.put(key, value);
             }
         }
-
         String kerberosEnabled = properties.getProperty(KafkaConstants.CANAL_MQ_KAFKA_KERBEROS_ENABLE);
         if (!StringUtils.isEmpty(kerberosEnabled)) {
             kafkaProducerConfig.setKerberosEnabled(Boolean.parseBoolean(kerberosEnabled));
@@ -123,7 +136,7 @@ public class CanalKafkaProducer extends AbstractMQProducer implements CanalMQPro
 
     @Override
     public void send(MQDestination mqDestination, Message message, Callback callback) {
-        ExecutorTemplate template = new ExecutorTemplate(executor);
+        ExecutorTemplate template = new ExecutorTemplate(sendExecutor);
 
         try {
             List result;
@@ -186,7 +199,7 @@ public class CanalKafkaProducer extends AbstractMQProducer implements CanalMQPro
         if (!flat) {
             if (mqDestination.getPartitionHash() != null && !mqDestination.getPartitionHash().isEmpty()) {
                 // 并发构造
-                EntryRowData[] datas = MQMessageUtils.buildMessageData(message, executor);
+                EntryRowData[] datas = MQMessageUtils.buildMessageData(message, buildExecutor);
                 // 串行分区
                 Message[] messages = MQMessageUtils.messagePartition(datas,
                     message.getId(),
@@ -200,7 +213,8 @@ public class CanalKafkaProducer extends AbstractMQProducer implements CanalMQPro
                         records.add(new ProducerRecord<>(topicName,
                             i,
                             null,
-                            CanalMessageSerializerUtil.serializer(messagePartition, true)));
+                            CanalMessageSerializerUtil.serializer(messagePartition,
+                                mqProperties.isFilterTransactionEntry())));
                     }
                 }
             } else {
@@ -208,12 +222,12 @@ public class CanalKafkaProducer extends AbstractMQProducer implements CanalMQPro
                 records.add(new ProducerRecord<>(topicName,
                     partition,
                     null,
-                    CanalMessageSerializerUtil.serializer(message, true)));
+                    CanalMessageSerializerUtil.serializer(message, mqProperties.isFilterTransactionEntry())));
             }
         } else {
             // 发送扁平数据json
             // 并发构造
-            EntryRowData[] datas = MQMessageUtils.buildMessageData(message, executor);
+            EntryRowData[] datas = MQMessageUtils.buildMessageData(message, buildExecutor);
             // 串行分区
             List<FlatMessage> flatMessages = MQMessageUtils.messageConverter(datas, message.getId());
             for (FlatMessage flatMessage : flatMessages) {
diff --git a/connector/pom.xml b/connector/pom.xml
index 46b4a6b5..b56937d5 100644
--- a/connector/pom.xml
+++ b/connector/pom.xml
@@ -41,7 +41,7 @@
     <repositories>
         <repository>
             <id>central</id>
-            <url>https://repo1.maven.org/maven2</url>
+            <url>http://repo1.maven.org/maven2</url>
             <releases>
                 <enabled>true</enabled>
             </releases>
diff --git a/connector/rabbitmq-connector/src/main/java/com/alibaba/otter/canal/connector/rabbitmq/consumer/CanalRabbitMQConsumer.java b/connector/rabbitmq-connector/src/main/java/com/alibaba/otter/canal/connector/rabbitmq/consumer/CanalRabbitMQConsumer.java
index 72d9ffc6..c7561fe6 100644
--- a/connector/rabbitmq-connector/src/main/java/com/alibaba/otter/canal/connector/rabbitmq/consumer/CanalRabbitMQConsumer.java
+++ b/connector/rabbitmq-connector/src/main/java/com/alibaba/otter/canal/connector/rabbitmq/consumer/CanalRabbitMQConsumer.java
@@ -201,13 +201,6 @@ public class CanalRabbitMQConsumer implements CanalMsgConsumer {
 
     @Override
     public void disconnect() {
-        if (connect != null) {
-            try {
-                connect.close();
-            } catch (IOException e) {
-                throw new CanalClientException("stop connect error", e);
-            }
-        }
         if (channel != null) {
             try {
                 channel.close();
@@ -215,5 +208,13 @@ public class CanalRabbitMQConsumer implements CanalMsgConsumer {
                 throw new CanalClientException("stop channel error", e);
             }
         }
+
+        if (connect != null) {
+            try {
+                connect.close();
+            } catch (IOException e) {
+                throw new CanalClientException("stop connect error", e);
+            }
+        }
     }
 }
diff --git a/connector/rabbitmq-connector/src/main/java/com/alibaba/otter/canal/connector/rabbitmq/producer/CanalRabbitMQProducer.java b/connector/rabbitmq-connector/src/main/java/com/alibaba/otter/canal/connector/rabbitmq/producer/CanalRabbitMQProducer.java
index 1374dea2..36e795e4 100644
--- a/connector/rabbitmq-connector/src/main/java/com/alibaba/otter/canal/connector/rabbitmq/producer/CanalRabbitMQProducer.java
+++ b/connector/rabbitmq-connector/src/main/java/com/alibaba/otter/canal/connector/rabbitmq/producer/CanalRabbitMQProducer.java
@@ -81,6 +81,8 @@ public class CanalRabbitMQProducer extends AbstractMQProducer implements CanalMQ
 
     private void loadRabbitMQProperties(Properties properties) {
         RabbitMQProducerConfig rabbitMQProperties = (RabbitMQProducerConfig) this.mqProperties;
+        // 兼容下<=1.1.4的mq配置
+        doMoreCompatibleConvert("canal.mq.servers", "rabbitmq.host", properties);
 
         String host = properties.getProperty(RabbitMQConstants.RABBITMQ_HOST);
         if (!StringUtils.isEmpty(host)) {
@@ -106,7 +108,7 @@ public class CanalRabbitMQProducer extends AbstractMQProducer implements CanalMQ
 
     @Override
     public void send(final MQDestination destination, Message message, Callback callback) {
-        ExecutorTemplate template = new ExecutorTemplate(executor);
+        ExecutorTemplate template = new ExecutorTemplate(sendExecutor);
         try {
             if (!StringUtils.isEmpty(destination.getDynamicTopic())) {
                 // 动态topic
@@ -149,7 +151,7 @@ public class CanalRabbitMQProducer extends AbstractMQProducer implements CanalMQ
             sendMessage(topicName, message);
         } else {
             // 并发构造
-            MQMessageUtils.EntryRowData[] datas = MQMessageUtils.buildMessageData(messageSub, executor);
+            MQMessageUtils.EntryRowData[] datas = MQMessageUtils.buildMessageData(messageSub, buildExecutor);
             // 串行分区
             List<FlatMessage> flatMessages = MQMessageUtils.messageConverter(datas, messageSub.getId());
             for (FlatMessage flatMessage : flatMessages) {
diff --git a/connector/rocketmq-connector/src/main/java/com/alibaba/otter/canal/connector/rocketmq/consumer/CanalRocketMQConsumer.java b/connector/rocketmq-connector/src/main/java/com/alibaba/otter/canal/connector/rocketmq/consumer/CanalRocketMQConsumer.java
index 08a62edf..3793ca73 100644
--- a/connector/rocketmq-connector/src/main/java/com/alibaba/otter/canal/connector/rocketmq/consumer/CanalRocketMQConsumer.java
+++ b/connector/rocketmq-connector/src/main/java/com/alibaba/otter/canal/connector/rocketmq/consumer/CanalRocketMQConsumer.java
@@ -47,7 +47,6 @@ public class CanalRocketMQConsumer implements CanalMsgConsumer {
     private String                                             nameServer;
     private String                                             topic;
     private String                                             groupName;
-    private volatile boolean                                   connected            = false;
     private DefaultMQPushConsumer                              rocketMQConsumer;
     private BlockingQueue<ConsumerBatchMessage<CommonMessage>> messageBlockingQueue;
     private int                                                batchSize            = -1;
@@ -135,7 +134,6 @@ public class CanalRocketMQConsumer implements CanalMsgConsumer {
             });
             rocketMQConsumer.start();
         } catch (MQClientException ex) {
-            connected = false;
             logger.error("Start RocketMQ consumer error", ex);
         }
     }
@@ -231,6 +229,5 @@ public class CanalRocketMQConsumer implements CanalMsgConsumer {
     public void disconnect() {
         rocketMQConsumer.unsubscribe(topic);
         rocketMQConsumer.shutdown();
-        connected = false;
     }
 }
diff --git a/connector/rocketmq-connector/src/main/java/com/alibaba/otter/canal/connector/rocketmq/producer/CanalRocketMQProducer.java b/connector/rocketmq-connector/src/main/java/com/alibaba/otter/canal/connector/rocketmq/producer/CanalRocketMQProducer.java
index da293f4b..fd2fd304 100644
--- a/connector/rocketmq-connector/src/main/java/com/alibaba/otter/canal/connector/rocketmq/producer/CanalRocketMQProducer.java
+++ b/connector/rocketmq-connector/src/main/java/com/alibaba/otter/canal/connector/rocketmq/producer/CanalRocketMQProducer.java
@@ -88,6 +88,11 @@ public class CanalRocketMQProducer extends AbstractMQProducer implements CanalMQ
 
     private void loadRocketMQProperties(Properties properties) {
         RocketMQProducerConfig rocketMQProperties = (RocketMQProducerConfig) this.mqProperties;
+        // 兼容下<=1.1.4的mq配置
+        doMoreCompatibleConvert("canal.mq.servers", "rocketmq.namesrv.addr", properties);
+        doMoreCompatibleConvert("canal.mq.producerGroup", "rocketmq.producer.group", properties);
+        doMoreCompatibleConvert("canal.mq.namespace", "rocketmq.namespace", properties);
+        doMoreCompatibleConvert("canal.mq.retries", "rocketmq.retry.times.when.send.failed", properties);
 
         String producerGroup = properties.getProperty(RocketMQConstants.ROCKETMQ_PRODUCER_GROUP);
         if (!StringUtils.isEmpty(producerGroup)) {
@@ -121,7 +126,7 @@ public class CanalRocketMQProducer extends AbstractMQProducer implements CanalMQ
 
     @Override
     public void send(MQDestination destination, com.alibaba.otter.canal.protocol.Message message, Callback callback) {
-        ExecutorTemplate template = new ExecutorTemplate(executor);
+        ExecutorTemplate template = new ExecutorTemplate(sendExecutor);
         try {
             if (!StringUtils.isEmpty(destination.getDynamicTopic())) {
                 // 动态topic
@@ -159,7 +164,7 @@ public class CanalRocketMQProducer extends AbstractMQProducer implements CanalMQ
         if (!mqProperties.isFlatMessage()) {
             if (destination.getPartitionHash() != null && !destination.getPartitionHash().isEmpty()) {
                 // 并发构造
-                MQMessageUtils.EntryRowData[] datas = MQMessageUtils.buildMessageData(message, executor);
+                MQMessageUtils.EntryRowData[] datas = MQMessageUtils.buildMessageData(message, buildExecutor);
                 // 串行分区
                 com.alibaba.otter.canal.protocol.Message[] messages = MQMessageUtils.messagePartition(datas,
                     message.getId(),
@@ -168,7 +173,7 @@ public class CanalRocketMQProducer extends AbstractMQProducer implements CanalMQ
                     mqProperties.isDatabaseHash());
                 int length = messages.length;
 
-                ExecutorTemplate template = new ExecutorTemplate(executor);
+                ExecutorTemplate template = new ExecutorTemplate(sendExecutor);
                 for (int i = 0; i < length; i++) {
                     com.alibaba.otter.canal.protocol.Message dataPartition = messages[i];
                     if (dataPartition != null) {
@@ -190,7 +195,7 @@ public class CanalRocketMQProducer extends AbstractMQProducer implements CanalMQ
             }
         } else {
             // 并发构造
-            MQMessageUtils.EntryRowData[] datas = MQMessageUtils.buildMessageData(message, executor);
+            MQMessageUtils.EntryRowData[] datas = MQMessageUtils.buildMessageData(message, buildExecutor);
             // 串行分区
             List<FlatMessage> flatMessages = MQMessageUtils.messageConverter(datas, message.getId());
             // 初始化分区合并队列
@@ -211,7 +216,7 @@ public class CanalRocketMQProducer extends AbstractMQProducer implements CanalMQ
                     }
                 }
 
-                ExecutorTemplate template = new ExecutorTemplate(executor);
+                ExecutorTemplate template = new ExecutorTemplate(sendExecutor);
                 for (int i = 0; i < partitionFlatMessages.size(); i++) {
                     final List<FlatMessage> flatMessagePart = partitionFlatMessages.get(i);
                     if (flatMessagePart != null) {
@@ -244,7 +249,7 @@ public class CanalRocketMQProducer extends AbstractMQProducer implements CanalMQ
     private void sendMessage(Message message, int partition) {
         try {
             SendResult sendResult = this.defaultMQProducer.send(message, (mqs, msg, arg) -> {
-                if (partition > mqs.size()) {
+                if (partition >= mqs.size()) {
                     return mqs.get(partition % mqs.size());
                 } else {
                     return mqs.get(partition);
@@ -283,7 +288,7 @@ public class CanalRocketMQProducer extends AbstractMQProducer implements CanalMQ
                 }
             } else {
                 MessageQueue queue;
-                if (partition > size) {
+                if (partition >= size) {
                     queue = queues.get(partition % size);
                 } else {
                     queue = queues.get(partition);
diff --git a/dbsync/src/main/java/com/taobao/tddl/dbsync/binlog/event/TableMapLogEvent.java b/dbsync/src/main/java/com/taobao/tddl/dbsync/binlog/event/TableMapLogEvent.java
index 18201ea9..79fa4147 100644
--- a/dbsync/src/main/java/com/taobao/tddl/dbsync/binlog/event/TableMapLogEvent.java
+++ b/dbsync/src/main/java/com/taobao/tddl/dbsync/binlog/event/TableMapLogEvent.java
@@ -326,8 +326,8 @@ public final class TableMapLogEvent extends LogEvent {
      * </ul>
      * Source : http://forge.mysql.com/wiki/MySQL_Internals_Binary_Log
      */
-    protected final String dbname;
-    protected final String tblname;
+    protected String dbname;
+    protected String tblname;
 
     /**
      * Holding mysql column information.
@@ -418,6 +418,7 @@ public final class TableMapLogEvent extends LogEvent {
         buffer.position(commonHeaderLen + postHeaderLen);
         dbname = buffer.getString();
         buffer.forward(1); /* termination null */
+        // fixed issue #2714
         tblname = buffer.getString();
         buffer.forward(1); /* termination null */
 
@@ -792,6 +793,22 @@ public final class TableMapLogEvent extends LogEvent {
         return tblname;
     }
 
+    public String getDbname() {
+        return dbname;
+    }
+
+    public void setDbname(String dbname) {
+        this.dbname = dbname;
+    }
+
+    public String getTblname() {
+        return tblname;
+    }
+
+    public void setTblname(String tblname) {
+        this.tblname = tblname;
+    }
+
     public final int getColumnCnt() {
         return columnCnt;
     }
diff --git a/deployer/src/main/bin/restart.sh b/deployer/src/main/bin/restart.sh
index 7b0ed7b4..e2499d51 100644
--- a/deployer/src/main/bin/restart.sh
+++ b/deployer/src/main/bin/restart.sh
@@ -2,5 +2,5 @@
 
 args=$@
 
-bash stop.sh $args
-bash startup.sh $args
+sh stop.sh $args
+sh startup.sh $args
\ No newline at end of file
diff --git a/deployer/src/main/java/com/alibaba/otter/canal/deployer/CanalController.java b/deployer/src/main/java/com/alibaba/otter/canal/deployer/CanalController.java
index 7f129831..0a0a3980 100644
--- a/deployer/src/main/java/com/alibaba/otter/canal/deployer/CanalController.java
+++ b/deployer/src/main/java/com/alibaba/otter/canal/deployer/CanalController.java
@@ -443,11 +443,11 @@ public class CanalController {
                 }
                 config.setManagerAddress(managerAddress);
             }
-        } else if (config.getMode().isSpring()) {
-            String springXml = getProperty(properties, CanalConstants.getInstancSpringXmlKey(destination));
-            if (StringUtils.isNotEmpty(springXml)) {
-                config.setSpringXml(springXml);
-            }
+        }
+
+        String springXml = getProperty(properties, CanalConstants.getInstancSpringXmlKey(destination));
+        if (StringUtils.isNotEmpty(springXml)) {
+            config.setSpringXml(springXml);
         }
 
         return config;
diff --git a/deployer/src/main/java/com/alibaba/otter/canal/deployer/admin/CanalAdminController.java b/deployer/src/main/java/com/alibaba/otter/canal/deployer/admin/CanalAdminController.java
index 5877f7fe..5144e7f7 100644
--- a/deployer/src/main/java/com/alibaba/otter/canal/deployer/admin/CanalAdminController.java
+++ b/deployer/src/main/java/com/alibaba/otter/canal/deployer/admin/CanalAdminController.java
@@ -218,11 +218,6 @@ public class CanalAdminController implements CanalAdmin {
         return FileUtils.readFileFromOffset("../logs/" + destination + "/" + fileName, lines, "UTF-8");
     }
 
-    @Override
-    public String instanceMeta(String destination, String fileName) {
-        return FileUtils.readFileFromOffset("../conf/" + destination + "/" + fileName, 100, "UTF-8");
-    }
-
     private InstanceAction getInstanceAction(String destination) {
         Map<InstanceConfig.InstanceMode, InstanceConfigMonitor> monitors = canalStater.getController()
             .getInstanceConfigMonitors();
diff --git a/deployer/src/main/resources/canal.properties b/deployer/src/main/resources/canal.properties
index 234ffb00..a14766cd 100644
--- a/deployer/src/main/resources/canal.properties
+++ b/deployer/src/main/resources/canal.properties
@@ -109,19 +109,21 @@ canal.instance.global.spring.xml = classpath:spring/file-instance.xml
 ##################################################
 ######### 	      MQ Properties      #############
 ##################################################
-canal.mq.flat.message = true
-canal.mq.database.hash = true
-canal.mq.parallel.thread.size = 8
-canal.mq.canal.batch.size = 50
-canal.mq.canal.fetch.timeout = 100
-# Set this value to "cloud", if you want open message trace feature in aliyun.
-canal.mq.access.channel = local
-
 # aliyun ak/sk , support rds/mq
 canal.aliyun.accessKey =
 canal.aliyun.secretKey =
 canal.aliyun.uid=
 
+canal.mq.flatMessage = true
+canal.mq.canalBatchSize = 50
+canal.mq.canalGetTimeout = 100
+# Set this value to "cloud", if you want open message trace feature in aliyun.
+canal.mq.accessChannel = local
+
+canal.mq.database.hash = true
+canal.mq.send.thread.size = 30
+canal.mq.build.thread.size = 8
+
 ##################################################
 ######### 		     Kafka 		     #############
 ##################################################
@@ -135,9 +137,9 @@ kafka.buffer.memory = 33554432
 kafka.max.in.flight.requests.per.connection = 1
 kafka.retries = 0
 
-canal.mq.kafka.kerberos.enable = false
-canal.mq.kafka.kerberos.krb5.file = "../conf/kerberos/krb5.conf"
-canal.mq.kafka.kerberos.jaas.file = "../conf/kerberos/jaas.conf"
+kafka.kerberos.enable = false
+kafka.kerberos.krb5.file = "../conf/kerberos/krb5.conf"
+kafka.kerberos.jaas.file = "../conf/kerberos/jaas.conf"
 
 ##################################################
 ######### 		    RocketMQ	     #############
diff --git a/deployer/src/main/resources/example/instance.properties b/deployer/src/main/resources/example/instance.properties
index 5ceccab6..06e3dad3 100644
--- a/deployer/src/main/resources/example/instance.properties
+++ b/deployer/src/main/resources/example/instance.properties
@@ -40,7 +40,7 @@ canal.instance.enableDruid=false
 # table regex
 canal.instance.filter.regex=.*\\..*
 # table black regex
-canal.instance.filter.black.regex=
+canal.instance.filter.black.regex=mysql\\.slave_.*
 # table field filter(format: schema1.tableName1:field1/field2,schema2.tableName2:field1/field2)
 #canal.instance.filter.field=test1.t_product:id/subject/keywords,test2.t_company:id/name/contact/ch
 # table field black filter(format: schema1.tableName1:field1/field2,schema2.tableName2:field1/field2)
diff --git a/example/src/main/java/com/alibaba/otter/canal/example/AbstractCanalClientTest.java b/example/src/main/java/com/alibaba/otter/canal/example/AbstractCanalClientTest.java
index 1f77d00f..25746a26 100644
--- a/example/src/main/java/com/alibaba/otter/canal/example/AbstractCanalClientTest.java
+++ b/example/src/main/java/com/alibaba/otter/canal/example/AbstractCanalClientTest.java
@@ -76,16 +76,17 @@ public class AbstractCanalClientTest extends BaseCanalClientTest {
 
                     if (batchId != -1) {
                         connector.ack(batchId); // 提交确认
-                        // connector.rollback(batchId); // 处理失败, 回滚数据
                     }
                 }
-            } catch (Exception e) {
+            } catch (Throwable e) {
                 logger.error("process error!", e);
                 try {
                     Thread.sleep(1000L);
                 } catch (InterruptedException e1) {
                     // ignore
                 }
+
+                connector.rollback(); // 处理失败, 回滚数据
             } finally {
                 connector.disconnect();
                 MDC.remove("destination");
diff --git a/example/src/main/java/com/alibaba/otter/canal/example/kafka/CanalKafkaClientFlatMessageExample.java b/example/src/main/java/com/alibaba/otter/canal/example/kafka/CanalKafkaClientFlatMessageExample.java
index 5d5fd2d1..60b798ac 100644
--- a/example/src/main/java/com/alibaba/otter/canal/example/kafka/CanalKafkaClientFlatMessageExample.java
+++ b/example/src/main/java/com/alibaba/otter/canal/example/kafka/CanalKafkaClientFlatMessageExample.java
@@ -117,8 +117,7 @@ public class CanalKafkaClientFlatMessageExample {
                         }
                         for (FlatMessage message : messages) {
                             long batchId = message.getId();
-                            int size = message.getData() == null ? 0 : message.getData().size();
-                            if (batchId == -1 || size == 0) {
+                            if (batchId == -1 || message.getData() == null) {
                                 // try {
                                 // Thread.sleep(1000);
                                 // } catch (InterruptedException e) {
diff --git a/instance/manager/src/main/java/com/alibaba/otter/canal/instance/manager/CanalInstanceWithManager.java b/instance/manager/src/main/java/com/alibaba/otter/canal/instance/manager/CanalInstanceWithManager.java
index 9752645a..8a35326d 100644
--- a/instance/manager/src/main/java/com/alibaba/otter/canal/instance/manager/CanalInstanceWithManager.java
+++ b/instance/manager/src/main/java/com/alibaba/otter/canal/instance/manager/CanalInstanceWithManager.java
@@ -5,7 +5,6 @@ import java.io.FilenameFilter;
 import java.net.InetSocketAddress;
 import java.net.URL;
 import java.net.URLClassLoader;
-import java.nio.charset.Charset;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
@@ -294,7 +293,7 @@ public class CanalInstanceWithManager extends AbstractCanalInstance {
             }
             mysqlEventParser.setDestination(destination);
             // 编码参数
-            mysqlEventParser.setConnectionCharset(Charset.forName(parameters.getConnectionCharset()));
+            mysqlEventParser.setConnectionCharset(parameters.getConnectionCharset());
             mysqlEventParser.setConnectionCharsetNumber(parameters.getConnectionCharsetNumber());
             // 网络相关参数
             mysqlEventParser.setDefaultConnectionTimeoutInSeconds(parameters.getDefaultConnectionTimeoutInSeconds());
@@ -375,7 +374,7 @@ public class CanalInstanceWithManager extends AbstractCanalInstance {
             LocalBinlogEventParser localBinlogEventParser = new LocalBinlogEventParser();
             localBinlogEventParser.setDestination(destination);
             localBinlogEventParser.setBufferSize(parameters.getReceiveBufferSize());
-            localBinlogEventParser.setConnectionCharset(Charset.forName(parameters.getConnectionCharset()));
+            localBinlogEventParser.setConnectionCharset(parameters.getConnectionCharset());
             localBinlogEventParser.setConnectionCharsetNumber(parameters.getConnectionCharsetNumber());
             localBinlogEventParser.setDirectory(parameters.getLocalBinlogDirectory());
             localBinlogEventParser.setProfilingEnabled(false);
diff --git a/meta/src/main/java/com/alibaba/otter/canal/meta/FileMixedMetaManager.java b/meta/src/main/java/com/alibaba/otter/canal/meta/FileMixedMetaManager.java
index 49543939..28826989 100644
--- a/meta/src/main/java/com/alibaba/otter/canal/meta/FileMixedMetaManager.java
+++ b/meta/src/main/java/com/alibaba/otter/canal/meta/FileMixedMetaManager.java
@@ -130,9 +130,9 @@ public class FileMixedMetaManager extends MemoryMetaManager implements CanalMeta
     }
 
     public void stop() {
-        super.stop();
-
         flushDataToFile();// 刷新数据
+
+        super.stop();
         executor.shutdownNow();
         destinations.clear();
         batches.clear();
diff --git a/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/AbstractMysqlEventParser.java b/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/AbstractMysqlEventParser.java
index fbde7790..7ae01f63 100644
--- a/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/AbstractMysqlEventParser.java
+++ b/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/AbstractMysqlEventParser.java
@@ -50,7 +50,7 @@ public abstract class AbstractMysqlEventParser extends AbstractEventParser {
         if (eventBlackFilter != null && eventBlackFilter instanceof AviaterRegexFilter) {
             convert.setNameBlackFilter((AviaterRegexFilter) eventBlackFilter);
         }
-        
+
         convert.setFieldFilterMap(getFieldFilterMap());
         convert.setFieldBlackFilterMap(getFieldBlackFilterMap());
 
@@ -93,13 +93,13 @@ public abstract class AbstractMysqlEventParser extends AbstractEventParser {
             }
         }
     }
-    
+
     @Override
     public void setFieldFilter(String fieldFilter) {
-    	super.setFieldFilter(fieldFilter);
-    	
-    	// 触发一下filter变更
-    	if (binlogParser instanceof LogEventConvert) {
+        super.setFieldFilter(fieldFilter);
+
+        // 触发一下filter变更
+        if (binlogParser instanceof LogEventConvert) {
             ((LogEventConvert) binlogParser).setFieldFilterMap(getFieldFilterMap());
         }
 
@@ -107,13 +107,13 @@ public abstract class AbstractMysqlEventParser extends AbstractEventParser {
             ((DatabaseTableMeta) tableMetaTSDB).setFieldFilterMap(getFieldFilterMap());
         }
     }
-    
+
     @Override
     public void setFieldBlackFilter(String fieldBlackFilter) {
-    	super.setFieldBlackFilter(fieldBlackFilter);
-    	
-    	// 触发一下filter变更
-    	if (binlogParser instanceof LogEventConvert) {
+        super.setFieldBlackFilter(fieldBlackFilter);
+
+        // 触发一下filter变更
+        if (binlogParser instanceof LogEventConvert) {
             ((LogEventConvert) binlogParser).setFieldBlackFilterMap(getFieldBlackFilterMap());
         }
 
@@ -184,11 +184,15 @@ public abstract class AbstractMysqlEventParser extends AbstractEventParser {
         this.connectionCharsetNumber = connectionCharsetNumber;
     }
 
-    public void setConnectionCharset(Charset connectionCharset) {
+    public void setConnectionCharsetStd(Charset connectionCharset) {
         this.connectionCharset = connectionCharset;
     }
 
     public void setConnectionCharset(String connectionCharset) {
+        if ("UTF8MB4".equalsIgnoreCase(connectionCharset)) {
+            connectionCharset = "UTF-8";
+        }
+
         this.connectionCharset = Charset.forName(connectionCharset);
     }
 
diff --git a/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/MysqlConnection.java b/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/MysqlConnection.java
index 785f2950..59dea37a 100644
--- a/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/MysqlConnection.java
+++ b/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/MysqlConnection.java
@@ -393,13 +393,13 @@ public class MysqlConnection implements ErosaConnection {
             logger.warn("update wait_timeout failed", e);
         }
         try {
-            update("set net_write_timeout=1800");
+            update("set net_write_timeout=7200");
         } catch (Exception e) {
             logger.warn("update net_write_timeout failed", e);
         }
 
         try {
-            update("set net_read_timeout=1800");
+            update("set net_read_timeout=7200");
         } catch (Exception e) {
             logger.warn("update net_read_timeout failed", e);
         }
@@ -522,7 +522,7 @@ public class MysqlConnection implements ErosaConnection {
             rs = query("select @@global.binlog_checksum");
             List<String> columnValues = rs.getFieldValues();
             if (columnValues != null && columnValues.size() >= 1 && columnValues.get(0) != null
-                && "CRC32".equals(columnValues.get(0).toUpperCase())) {
+                && columnValues.get(0).toUpperCase().equals("CRC32")) {
                 binlogChecksum = LogEvent.BINLOG_CHECKSUM_ALG_CRC32;
             } else {
                 binlogChecksum = LogEvent.BINLOG_CHECKSUM_ALG_OFF;
diff --git a/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/dbsync/LogEventConvert.java b/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/dbsync/LogEventConvert.java
index cf8d3d4f..69bd75ca 100644
--- a/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/dbsync/LogEventConvert.java
+++ b/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/dbsync/LogEventConvert.java
@@ -20,7 +20,6 @@ import org.slf4j.LoggerFactory;
 import com.alibaba.otter.canal.common.AbstractCanalLifeCycle;
 import com.alibaba.otter.canal.filter.aviater.AviaterRegexFilter;
 import com.alibaba.otter.canal.parse.exception.CanalParseException;
-import com.taobao.tddl.dbsync.binlog.exception.TableIdNotFoundException;
 import com.alibaba.otter.canal.parse.inbound.BinlogParser;
 import com.alibaba.otter.canal.parse.inbound.TableMeta;
 import com.alibaba.otter.canal.parse.inbound.TableMeta.FieldMeta;
@@ -59,6 +58,7 @@ import com.taobao.tddl.dbsync.binlog.event.UserVarLogEvent;
 import com.taobao.tddl.dbsync.binlog.event.WriteRowsLogEvent;
 import com.taobao.tddl.dbsync.binlog.event.XidLogEvent;
 import com.taobao.tddl.dbsync.binlog.event.mariadb.AnnotateRowsEvent;
+import com.taobao.tddl.dbsync.binlog.exception.TableIdNotFoundException;
 
 /**
  * 基于{@linkplain LogEvent}转化为Entry对象的处理
@@ -88,8 +88,8 @@ public class LogEventConvert extends AbstractCanalLifeCycle implements BinlogPar
 
     private volatile AviaterRegexFilter nameFilter;                                                          // 运行时引用可能会有变化，比如规则发生变化时
     private volatile AviaterRegexFilter nameBlackFilter;
-    private Map<String, List<String>> 	fieldFilterMap 		= new HashMap<String, List<String>>();
-    private Map<String, List<String>> 	fieldBlackFilterMap = new HashMap<String, List<String>>();
+    private Map<String, List<String>>   fieldFilterMap      = new HashMap<String, List<String>>();
+    private Map<String, List<String>>   fieldBlackFilterMap = new HashMap<String, List<String>>();
 
     private TableMetaCache              tableMetaCache;
     private Charset                     charset             = Charset.defaultCharset();
@@ -119,6 +119,7 @@ public class LogEventConvert extends AbstractCanalLifeCycle implements BinlogPar
             case LogEvent.XID_EVENT:
                 return parseXidEvent((XidLogEvent) logEvent);
             case LogEvent.TABLE_MAP_EVENT:
+                parseTableMapEvent((TableMapLogEvent) logEvent);
                 break;
             case LogEvent.WRITE_ROWS_EVENT_V1:
             case LogEvent.WRITE_ROWS_EVENT:
@@ -144,6 +145,7 @@ public class LogEventConvert extends AbstractCanalLifeCycle implements BinlogPar
                 return parseGTIDLogEvent((GtidLogEvent) logEvent);
             case LogEvent.HEARTBEAT_LOG_EVENT:
                 return parseHeartbeatLogEvent((HeartbeatLogEvent) logEvent);
+
             default:
                 break;
         }
@@ -275,7 +277,7 @@ public class LogEventConvert extends AbstractCanalLifeCycle implements BinlogPar
 
             Header header = createHeader(event.getHeader(), schemaName, tableName, type);
             RowChange.Builder rowChangeBuider = RowChange.newBuilder();
-            if (type != EventType.QUERY && !isDml) {
+            if (type == EventType.QUERY && !isDml) {
                 rowChangeBuider.setIsDdl(true);
             }
             rowChangeBuider.setSql(queryString);
@@ -491,6 +493,18 @@ public class LogEventConvert extends AbstractCanalLifeCycle implements BinlogPar
         return parseRowsEvent(event, null);
     }
 
+    public void parseTableMapEvent(TableMapLogEvent event) {
+        try {
+            String charsetDbName = new String(event.getDbName().getBytes(ISO_8859_1), charset.name());
+            event.setDbname(charsetDbName);
+
+            String charsetTbName = new String(event.getTableName().getBytes(ISO_8859_1), charset.name());
+            event.setTblname(charsetTbName);
+        } catch (UnsupportedEncodingException e) {
+            throw new CanalParseException(e);
+        }
+    }
+
     public Entry parseRowsEvent(RowsLogEvent event, TableMeta tableMeta) {
         if (filterRows) {
             return null;
@@ -588,15 +602,15 @@ public class LogEventConvert extends AbstractCanalLifeCycle implements BinlogPar
         boolean tableError = false;
         // check table fileds count，只能处理加字段
         boolean existRDSNoPrimaryKey = false;
-        //获取字段过滤条件
+        // 获取字段过滤条件
         List<String> fieldList = null;
         List<String> blackFieldList = null;
-        
+
         if (tableMeta != null) {
-        	fieldList = fieldFilterMap.get(tableMeta.getFullName().toUpperCase());
-        	blackFieldList = fieldBlackFilterMap.get(tableMeta.getFullName().toUpperCase());
+            fieldList = fieldFilterMap.get(tableMeta.getFullName().toUpperCase());
+            blackFieldList = fieldBlackFilterMap.get(tableMeta.getFullName().toUpperCase());
         }
-        
+
         if (tableMeta != null && columnInfo.length > tableMeta.getFields().size()) {
             if (tableMetaCache.isOnRDS()) {
                 // 特殊处理下RDS的场景
@@ -650,7 +664,7 @@ public class LogEventConvert extends AbstractCanalLifeCycle implements BinlogPar
 
             if (existRDSNoPrimaryKey && i == columnCnt - 1 && info.type == LogEvent.MYSQL_TYPE_LONGLONG) {
                 // 不解析最后一列
-                String rdsRowIdColumnName = "#alibaba_rds_row_id#";
+                String rdsRowIdColumnName = "__#alibaba_rds_row_id#__";
                 buffer.nextValue(rdsRowIdColumnName, i, info.type, info.meta, false);
                 Column.Builder columnBuilder = Column.newBuilder();
                 columnBuilder.setName(rdsRowIdColumnName);
@@ -664,7 +678,7 @@ public class LogEventConvert extends AbstractCanalLifeCycle implements BinlogPar
                 columnBuilder.setUpdated(false);
 
                 if (needField(fieldList, blackFieldList, columnBuilder.getName())) {
-                	if (isAfter) {
+                    if (isAfter) {
                         rowDataBuilder.addAfterColumns(columnBuilder.build());
                     } else {
                         rowDataBuilder.addBeforeColumns(columnBuilder.build());
@@ -712,7 +726,6 @@ public class LogEventConvert extends AbstractCanalLifeCycle implements BinlogPar
             // fixed issue
             // https://github.com/alibaba/canal/issues/66，特殊处理binary/varbinary，不能做编码处理
             boolean isBinary = false;
-            boolean isSingleBit = false;
             if (fieldMeta != null) {
                 if (StringUtils.containsIgnoreCase(fieldMeta.getColumnType(), "VARBINARY")) {
                     isBinary = true;
@@ -830,7 +843,7 @@ public class LogEventConvert extends AbstractCanalLifeCycle implements BinlogPar
                                          columnBuilder.getIsNull() ? null : columnBuilder.getValue(),
                                          i));
             if (needField(fieldList, blackFieldList, columnBuilder.getName())) {
-            	if (isAfter) {
+                if (isAfter) {
                     rowDataBuilder.addAfterColumns(columnBuilder.build());
                 } else {
                     rowDataBuilder.addBeforeColumns(columnBuilder.build());
@@ -969,16 +982,17 @@ public class LogEventConvert extends AbstractCanalLifeCycle implements BinlogPar
     private boolean isRDSHeartBeat(String schema, String table) {
         return "mysql".equalsIgnoreCase(schema) && "ha_health_check".equalsIgnoreCase(table);
     }
-    
+
     /**
      * 字段过滤判断
      */
     private boolean needField(List<String> fieldList, List<String> blackFieldList, String columnName) {
-    	if (fieldList == null || fieldList.isEmpty()) {
-    		return blackFieldList == null || blackFieldList.isEmpty() || !blackFieldList.contains(columnName.toUpperCase());
-    	} else {
-    		return fieldList.contains(columnName.toUpperCase());
-    	}
+        if (fieldList == null || fieldList.isEmpty()) {
+            return blackFieldList == null || blackFieldList.isEmpty()
+                   || !blackFieldList.contains(columnName.toUpperCase());
+        } else {
+            return fieldList.contains(columnName.toUpperCase());
+        }
     }
 
     public static TransactionBegin createTransactionBegin(long threadId) {
@@ -1021,31 +1035,30 @@ public class LogEventConvert extends AbstractCanalLifeCycle implements BinlogPar
         this.nameBlackFilter = nameBlackFilter;
         logger.warn("--> init table black filter : " + nameBlackFilter.toString());
     }
-    
+
     public void setFieldFilterMap(Map<String, List<String>> fieldFilterMap) {
-    	if (fieldFilterMap != null) {
-    		this.fieldFilterMap = fieldFilterMap;
-    	} else {
-    		this.fieldFilterMap = new HashMap<String, List<String>>();
-    	}
-		
-		
-		for (Map.Entry<String, List<String>> entry : this.fieldFilterMap.entrySet()) {
-			logger.warn("--> init field filter : " + entry.getKey() + "->" + entry.getValue());
-		}
-	}
-    
+        if (fieldFilterMap != null) {
+            this.fieldFilterMap = fieldFilterMap;
+        } else {
+            this.fieldFilterMap = new HashMap<String, List<String>>();
+        }
+
+        for (Map.Entry<String, List<String>> entry : this.fieldFilterMap.entrySet()) {
+            logger.warn("--> init field filter : " + entry.getKey() + "->" + entry.getValue());
+        }
+    }
+
     public void setFieldBlackFilterMap(Map<String, List<String>> fieldBlackFilterMap) {
-		if (fieldBlackFilterMap != null) {
-    		this.fieldBlackFilterMap = fieldBlackFilterMap;
-    	} else {
-    		this.fieldBlackFilterMap = new HashMap<String, List<String>>();
-    	}
-		
-		for (Map.Entry<String, List<String>> entry : this.fieldBlackFilterMap.entrySet()) {
-			logger.warn("--> init field black filter : " + entry.getKey() + "->" + entry.getValue());
-		}
-	}
+        if (fieldBlackFilterMap != null) {
+            this.fieldBlackFilterMap = fieldBlackFilterMap;
+        } else {
+            this.fieldBlackFilterMap = new HashMap<String, List<String>>();
+        }
+
+        for (Map.Entry<String, List<String>> entry : this.fieldBlackFilterMap.entrySet()) {
+            logger.warn("--> init field black filter : " + entry.getKey() + "->" + entry.getValue());
+        }
+    }
 
     public void setTableMetaCache(TableMetaCache tableMetaCache) {
         this.tableMetaCache = tableMetaCache;
diff --git a/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/rds/RdsBinlogEventParserProxy.java b/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/rds/RdsBinlogEventParserProxy.java
index 817d895f..53b770ef 100644
--- a/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/rds/RdsBinlogEventParserProxy.java
+++ b/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/rds/RdsBinlogEventParserProxy.java
@@ -55,7 +55,7 @@ public class RdsBinlogEventParserProxy extends MysqlEventParser {
             rdsLocalBinlogEventParser.setLogPositionManager(this.getLogPositionManager());
             rdsLocalBinlogEventParser.setDestination(destination);
             rdsLocalBinlogEventParser.setAlarmHandler(this.getAlarmHandler());
-            rdsLocalBinlogEventParser.setConnectionCharset(this.connectionCharset);
+            rdsLocalBinlogEventParser.setConnectionCharsetStd(this.connectionCharset);
             rdsLocalBinlogEventParser.setConnectionCharsetNumber(this.connectionCharsetNumber);
             rdsLocalBinlogEventParser.setEnableTsdb(this.enableTsdb);
             rdsLocalBinlogEventParser.setEventBlackFilter(this.eventBlackFilter);
diff --git a/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/rds/request/DescribeBackupPolicyRequest.java b/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/rds/request/DescribeBackupPolicyRequest.java
index c5a9b501..cf51961a 100644
--- a/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/rds/request/DescribeBackupPolicyRequest.java
+++ b/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/rds/request/DescribeBackupPolicyRequest.java
@@ -31,7 +31,7 @@ public class DescribeBackupPolicyRequest extends AbstractRequest<RdsBackupPolicy
         JSONObject jsonObj = JSON.parseObject(result);
         RdsBackupPolicy policy = new RdsBackupPolicy();
         policy.setBackupRetentionPeriod(jsonObj.getString("BackupRetentionPeriod"));
-        policy.setBackupLog("Enable".equalsIgnoreCase(jsonObj.getString("BackupLog")));
+        policy.setBackupLog(jsonObj.getString("BackupLog").equalsIgnoreCase("Enable"));
         policy.setLogBackupRetentionPeriod(jsonObj.getIntValue("LogBackupRetentionPeriod"));
         policy.setPreferredBackupPeriod(jsonObj.getString("PreferredBackupPeriod"));
         policy.setPreferredBackupTime(jsonObj.getString("PreferredBackupTime"));
diff --git a/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/tsdb/DatabaseTableMeta.java b/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/tsdb/DatabaseTableMeta.java
index 6806092f..84b87044 100644
--- a/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/tsdb/DatabaseTableMeta.java
+++ b/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/tsdb/DatabaseTableMeta.java
@@ -1,5 +1,27 @@
 package com.alibaba.otter.canal.parse.inbound.mysql.tsdb;
 
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.Executors;
+import java.util.concurrent.ScheduledExecutorService;
+import java.util.concurrent.ScheduledFuture;
+import java.util.concurrent.ThreadFactory;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicBoolean;
+import java.util.concurrent.locks.ReadWriteLock;
+import java.util.concurrent.locks.ReentrantReadWriteLock;
+import java.util.regex.Pattern;
+
+import org.apache.commons.beanutils.BeanUtils;
+import org.apache.commons.lang.ObjectUtils;
+import org.apache.commons.lang.StringUtils;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.slf4j.MDC;
+
 import com.alibaba.fastjson.JSON;
 import com.alibaba.fastjson.JSONObject;
 import com.alibaba.fastsql.sql.repository.Schema;
@@ -17,23 +39,6 @@ import com.alibaba.otter.canal.parse.inbound.mysql.tsdb.dao.MetaHistoryDO;
 import com.alibaba.otter.canal.parse.inbound.mysql.tsdb.dao.MetaSnapshotDAO;
 import com.alibaba.otter.canal.parse.inbound.mysql.tsdb.dao.MetaSnapshotDO;
 import com.alibaba.otter.canal.protocol.position.EntryPosition;
-import org.apache.commons.beanutils.BeanUtils;
-import org.apache.commons.lang.ObjectUtils;
-import org.apache.commons.lang.StringUtils;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-import org.slf4j.MDC;
-
-import java.io.IOException;
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-import java.util.concurrent.*;
-import java.util.concurrent.atomic.AtomicBoolean;
-import java.util.concurrent.locks.ReadWriteLock;
-import java.util.concurrent.locks.ReentrantReadWriteLock;
-import java.util.regex.Pattern;
 
 /**
  * 基于db远程管理 see internal class: CanalTableMeta , ConsoleTableMetaTSDB
@@ -451,7 +456,7 @@ public class DatabaseTableMeta implements TableMetaTSDB {
                 // 如果是同一秒内,对比一下history的位点，如果比期望的位点要大，忽略之
                 if (snapshotPosition.getTimestamp() > rollbackPosition.getTimestamp()) {
                     continue;
-                } else if (rollbackPosition.getServerId().equals(snapshotPosition.getServerId())
+                } else if (rollbackPosition.getServerId() == snapshotPosition.getServerId()
                            && snapshotPosition.compareTo(rollbackPosition) > 0) {
                     continue;
                 }
diff --git a/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/tsdb/MemoryTableMeta.java b/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/tsdb/MemoryTableMeta.java
index 6f838b49..3fd4d112 100644
--- a/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/tsdb/MemoryTableMeta.java
+++ b/parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/tsdb/MemoryTableMeta.java
@@ -81,8 +81,7 @@ public class MemoryTableMeta implements TableMetaTSDB {
                     && !StringUtils.startsWithIgnoreCase(StringUtils.trim(ddl), "alter user")
                     && !StringUtils.startsWithIgnoreCase(StringUtils.trim(ddl), "drop user")
                     && !StringUtils.startsWithIgnoreCase(StringUtils.trim(ddl), "create database")) {
-                    String sql = trimSimpleComment(ddl);
-                    repository.console(sql);
+                    repository.console(ddl);
                 }
             } catch (Throwable e) {
                 logger.warn("parse faield : " + ddl, e);
@@ -98,38 +97,6 @@ public class MemoryTableMeta implements TableMetaTSDB {
         return true;
     }
 
-    /**
-     * 过滤简单的行与块注释（--或# 开始的行 /*开始与*\/结束的块）
-     *
-     * @param sql
-     * @return
-     */
-    private String trimSimpleComment(String sql) {
-        String[] sqls = sql.split("\n");
-        if (sqls.length == 1) return sql;
-
-        boolean isCommentBlock = false;
-        StringBuilder sb = new StringBuilder(sql.length());
-        for (String psql : sqls) {
-            if (psql.startsWith("--") || psql.startsWith("#")) {
-                continue;
-            } else if (psql.trim().length() == 0) {
-                sb.append("\n");
-            }
-            if (!isCommentBlock && !psql.trim().startsWith("/*") && !psql.trim().endsWith("*/")) {
-                sb.append(psql).append("\n");
-                continue;
-            }
-            if (!isCommentBlock && psql.trim().startsWith("/*")) {
-                isCommentBlock = true;
-            }
-            if (isCommentBlock && psql.trim().endsWith("*/")) {
-                isCommentBlock = false;
-            }
-        }
-        return sb.toString();
-    }
-
     @Override
     public TableMeta find(String schema, String table) {
         List<String> keys = Arrays.asList(schema, table);
diff --git a/parse/src/test/java/com/alibaba/otter/canal/parse/DirectLogFetcherTest.java b/parse/src/test/java/com/alibaba/otter/canal/parse/DirectLogFetcherTest.java
index 31caf4d8..a6d15892 100644
--- a/parse/src/test/java/com/alibaba/otter/canal/parse/DirectLogFetcherTest.java
+++ b/parse/src/test/java/com/alibaba/otter/canal/parse/DirectLogFetcherTest.java
@@ -45,6 +45,7 @@ import com.taobao.tddl.dbsync.binlog.event.UpdateRowsLogEvent;
 import com.taobao.tddl.dbsync.binlog.event.WriteRowsLogEvent;
 import com.taobao.tddl.dbsync.binlog.event.XidLogEvent;
 import com.taobao.tddl.dbsync.binlog.event.mariadb.AnnotateRowsEvent;
+
 @Ignore
 public class DirectLogFetcherTest {
 
@@ -85,6 +86,9 @@ public class DirectLogFetcherTest {
                         // event).getFilename();
                         System.out.println(((RotateLogEvent) event).getFilename());
                         break;
+                    case LogEvent.TABLE_MAP_EVENT:
+                        parseTableMapEvent((TableMapLogEvent) event);
+                        break;
                     case LogEvent.WRITE_ROWS_EVENT_V1:
                     case LogEvent.WRITE_ROWS_EVENT:
                         parseRowsEvent((WriteRowsLogEvent) event);
@@ -173,13 +177,13 @@ public class DirectLogFetcherTest {
             logger.warn("update wait_timeout failed", e);
         }
         try {
-            update("set net_write_timeout=1800", connector);
+            update("set net_write_timeout=7200", connector);
         } catch (Exception e) {
             logger.warn("update net_write_timeout failed", e);
         }
 
         try {
-            update("set net_read_timeout=1800", connector);
+            update("set net_read_timeout=7200", connector);
         } catch (Exception e) {
             logger.warn("update net_read_timeout failed", e);
         }
@@ -272,6 +276,18 @@ public class DirectLogFetcherTest {
         System.out.println("sql : " + new String(event.getRowsQuery().getBytes("ISO-8859-1"), charset.name()));
     }
 
+    public void parseTableMapEvent(TableMapLogEvent event) {
+        try {
+            String charsetDbName = new String(event.getDbName().getBytes("ISO-8859-1"), charset.name());
+            event.setDbname(charsetDbName);
+
+            String charsetTbName = new String(event.getTableName().getBytes("ISO-8859-1"), charset.name());
+            event.setTblname(charsetTbName);
+        } catch (UnsupportedEncodingException e) {
+            throw new CanalParseException(e);
+        }
+    }
+
     protected void parseXidEvent(XidLogEvent event) throws Exception {
         System.out.println(String.format("================> binlog[%s:%s]", binlogFileName, event.getHeader()
             .getLogPos() - event.getHeader().getEventLen()));
diff --git a/parse/src/test/java/com/alibaba/otter/canal/parse/MysqlBinlogDumpPerformanceTest.java b/parse/src/test/java/com/alibaba/otter/canal/parse/MysqlBinlogDumpPerformanceTest.java
index cfb5d132..e6214bd6 100644
--- a/parse/src/test/java/com/alibaba/otter/canal/parse/MysqlBinlogDumpPerformanceTest.java
+++ b/parse/src/test/java/com/alibaba/otter/canal/parse/MysqlBinlogDumpPerformanceTest.java
@@ -1,10 +1,11 @@
 package com.alibaba.otter.canal.parse;
 
 import java.net.InetSocketAddress;
-import java.nio.charset.Charset;
 import java.util.List;
 import java.util.concurrent.atomic.AtomicLong;
 
+import org.junit.Ignore;
+
 import com.alibaba.otter.canal.common.AbstractCanalLifeCycle;
 import com.alibaba.otter.canal.parse.exception.CanalParseException;
 import com.alibaba.otter.canal.parse.inbound.mysql.MysqlEventParser;
@@ -15,7 +16,6 @@ import com.alibaba.otter.canal.protocol.position.EntryPosition;
 import com.alibaba.otter.canal.protocol.position.LogPosition;
 import com.alibaba.otter.canal.sink.CanalEventSink;
 import com.alibaba.otter.canal.sink.exception.CanalSinkException;
-import org.junit.Ignore;
 
 @Ignore
 public class MysqlBinlogDumpPerformanceTest {
@@ -23,7 +23,7 @@ public class MysqlBinlogDumpPerformanceTest {
     public static void main(String args[]) {
         final MysqlEventParser controller = new MysqlEventParser();
         final EntryPosition startPosition = new EntryPosition("mysql-bin.000007", 89796293L, 100L);
-        controller.setConnectionCharset(Charset.forName("UTF-8"));
+        controller.setConnectionCharset("UTF-8");
         controller.setSlaveId(3344L);
         controller.setDetectingEnable(false);
         controller.setFilterQueryDml(true);
diff --git a/parse/src/test/java/com/alibaba/otter/canal/parse/inbound/mysql/LocalBinlogDumpTest.java b/parse/src/test/java/com/alibaba/otter/canal/parse/inbound/mysql/LocalBinlogDumpTest.java
index c21ec187..b38901f5 100644
--- a/parse/src/test/java/com/alibaba/otter/canal/parse/inbound/mysql/LocalBinlogDumpTest.java
+++ b/parse/src/test/java/com/alibaba/otter/canal/parse/inbound/mysql/LocalBinlogDumpTest.java
@@ -31,7 +31,7 @@ public class LocalBinlogDumpTest {
         final EntryPosition startPosition = new EntryPosition("mysql-bin.000003", 123L);
 
         controller.setMasterInfo(new AuthenticationInfo(new InetSocketAddress("127.0.0.1", 3306), "canal", "canal"));
-        controller.setConnectionCharset(Charset.forName("UTF-8"));
+        controller.setConnectionCharsetStd(Charset.forName("UTF-8"));
         controller.setDirectory(directory);
         controller.setMasterPosition(startPosition);
         controller.setEventSink(new AbstractCanalEventSinkTest<List<Entry>>() {
diff --git a/parse/src/test/java/com/alibaba/otter/canal/parse/inbound/mysql/MysqlDumpTest.java b/parse/src/test/java/com/alibaba/otter/canal/parse/inbound/mysql/MysqlDumpTest.java
index 212682b0..79bcfcf3 100644
--- a/parse/src/test/java/com/alibaba/otter/canal/parse/inbound/mysql/MysqlDumpTest.java
+++ b/parse/src/test/java/com/alibaba/otter/canal/parse/inbound/mysql/MysqlDumpTest.java
@@ -32,7 +32,7 @@ public class MysqlDumpTest {
         final MysqlEventParser controller = new MysqlEventParser();
         final EntryPosition startPosition = new EntryPosition("mysql-bin.000001", 4L);
         // startPosition.setGtid("f1ceb61a-a5d5-11e7-bdee-107c3dbcf8a7:1-17");
-        controller.setConnectionCharset(Charset.forName("UTF-8"));
+        controller.setConnectionCharsetStd(Charset.forName("UTF-8"));
         controller.setSlaveId(3344L);
         controller.setDetectingEnable(false);
         controller.setMasterInfo(new AuthenticationInfo(new InetSocketAddress("127.0.0.1", 3306), "root", "hello"));
diff --git a/parse/src/test/java/com/alibaba/otter/canal/parse/inbound/mysql/RdsLocalBinlogDumpTest.java b/parse/src/test/java/com/alibaba/otter/canal/parse/inbound/mysql/RdsLocalBinlogDumpTest.java
index b718936f..943faf49 100644
--- a/parse/src/test/java/com/alibaba/otter/canal/parse/inbound/mysql/RdsLocalBinlogDumpTest.java
+++ b/parse/src/test/java/com/alibaba/otter/canal/parse/inbound/mysql/RdsLocalBinlogDumpTest.java
@@ -34,7 +34,7 @@ public class RdsLocalBinlogDumpTest {
         String directory = "/tmp/rds";
         final RdsLocalBinlogEventParser controller = new RdsLocalBinlogEventParser();
         controller.setMasterInfo(new AuthenticationInfo(new InetSocketAddress("127.0.0.1", 3306), "root", "hello"));
-        controller.setConnectionCharset(Charset.forName("UTF-8"));
+        controller.setConnectionCharsetStd(Charset.forName("UTF-8"));
         controller.setDirectory(directory);
         controller.setAccesskey("");
         controller.setSecretkey("");
diff --git a/pom.xml b/pom.xml
index 70f70b24..3ca37ebb 100644
--- a/pom.xml
+++ b/pom.xml
@@ -48,7 +48,7 @@
     <repositories>
         <repository>
             <id>central</id>
-            <url>https://repo1.maven.org/maven2</url>
+            <url>http://repo1.maven.org/maven2</url>
             <releases>
                 <enabled>true</enabled>
             </releases>
@@ -232,6 +232,11 @@
                 <artifactId>aviator</artifactId>
                 <version>2.2.1</version>
             </dependency>
+            <dependency>
+                <groupId>com.alibaba</groupId>
+                <artifactId>fastjson</artifactId>
+                <version>1.2.58.sec06</version>
+            </dependency>
             <dependency>
                 <groupId>oro</groupId>
                 <artifactId>oro</artifactId>
@@ -327,7 +332,7 @@
             <dependency>
                 <groupId>mysql</groupId>
                 <artifactId>mysql-connector-java</artifactId>
-                <version>5.1.47</version>
+                <version>5.1.48</version>
                 <!--<scope>test</scope>-->
             </dependency>
             <dependency>
diff --git a/prometheus/src/main/java/com/alibaba/otter/canal/prometheus/impl/PrometheusCanalEventDownStreamHandler.java b/prometheus/src/main/java/com/alibaba/otter/canal/prometheus/impl/PrometheusCanalEventDownStreamHandler.java
index 0bfacffe..96e96944 100644
--- a/prometheus/src/main/java/com/alibaba/otter/canal/prometheus/impl/PrometheusCanalEventDownStreamHandler.java
+++ b/prometheus/src/main/java/com/alibaba/otter/canal/prometheus/impl/PrometheusCanalEventDownStreamHandler.java
@@ -1,13 +1,13 @@
 package com.alibaba.otter.canal.prometheus.impl;
 
+import java.util.List;
+import java.util.concurrent.atomic.AtomicLong;
+
 import com.alibaba.otter.canal.protocol.CanalEntry;
 import com.alibaba.otter.canal.protocol.CanalEntry.EntryType;
 import com.alibaba.otter.canal.sink.AbstractCanalEventDownStreamHandler;
 import com.alibaba.otter.canal.store.model.Event;
 
-import java.util.List;
-import java.util.concurrent.atomic.AtomicLong;
-
 /**
  * @author Chuanyi Li
  */
@@ -26,17 +26,23 @@ public class PrometheusCanalEventDownStreamHandler extends AbstractCanalEventDow
                 switch (type) {
                     case TRANSACTIONBEGIN: {
                         long exec = e.getExecuteTime();
-                        if (exec > 0) localExecTime = exec;
+                        if (exec > 0) {
+                            localExecTime = exec;
+                        }
                         break;
                     }
                     case ROWDATA: {
                         long exec = e.getExecuteTime();
-                        if (exec > 0) localExecTime = exec;
+                        if (exec > 0) {
+                            localExecTime = exec;
+                        }
                         break;
                     }
                     case TRANSACTIONEND: {
                         long exec = e.getExecuteTime();
-                        if (exec > 0) localExecTime = exec;
+                        if (exec > 0) {
+                            localExecTime = exec;
+                        }
                         transactionCounter.incrementAndGet();
                         break;
                     }
@@ -51,7 +57,7 @@ public class PrometheusCanalEventDownStreamHandler extends AbstractCanalEventDow
                 }
             }
             if (localExecTime > 0) {
-                latestExecuteTime.lazySet(localExecTime);
+                latestExecuteTime.set(localExecTime);
             }
         }
         return events;
diff --git a/server/src/main/java/com/alibaba/otter/canal/admin/CanalAdmin.java b/server/src/main/java/com/alibaba/otter/canal/admin/CanalAdmin.java
index 69664ac9..9a5ed3fb 100644
--- a/server/src/main/java/com/alibaba/otter/canal/admin/CanalAdmin.java
+++ b/server/src/main/java/com/alibaba/otter/canal/admin/CanalAdmin.java
@@ -115,11 +115,4 @@ public interface CanalAdmin {
      * @return 日志信息
      */
     String instanceLog(String destination, String fileName, int lines);
-
-    /**
-     * 获取meta
-     * @param destination
-     * @return
-     */
-    String instanceMeta(String destination,String fileName);
 }
diff --git a/server/src/main/java/com/alibaba/otter/canal/admin/handler/SessionHandler.java b/server/src/main/java/com/alibaba/otter/canal/admin/handler/SessionHandler.java
index e4d7993b..ed5abea3 100644
--- a/server/src/main/java/com/alibaba/otter/canal/admin/handler/SessionHandler.java
+++ b/server/src/main/java/com/alibaba/otter/canal/admin/handler/SessionHandler.java
@@ -116,9 +116,6 @@ public class SessionHandler extends SimpleChannelHandler {
                                 message = canalAdmin.instanceLog(destination, file, count);
                             }
                             break;
-                        case "meta":
-                            message = canalAdmin.instanceMeta(destination, file);
-                            break;
                         default:
                             byte[] errorBytes = AdminNettyUtils.errorPacket(301,
                                 MessageFormatter.format("LogAdmin type={} is unknown", type).getMessage());
diff --git a/server/src/main/java/com/alibaba/otter/canal/server/CanalMQStarter.java b/server/src/main/java/com/alibaba/otter/canal/server/CanalMQStarter.java
index dae91df2..50be0d45 100644
--- a/server/src/main/java/com/alibaba/otter/canal/server/CanalMQStarter.java
+++ b/server/src/main/java/com/alibaba/otter/canal/server/CanalMQStarter.java
@@ -7,22 +7,21 @@ import java.util.concurrent.Executors;
 import java.util.concurrent.TimeUnit;
 import java.util.concurrent.atomic.AtomicBoolean;
 
-import com.alibaba.otter.canal.connector.core.util.Callback;
-import com.alibaba.otter.canal.connector.core.producer.MQDestination;
 import org.apache.commons.lang.StringUtils;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.slf4j.MDC;
 
+import com.alibaba.otter.canal.connector.core.config.MQProperties;
+import com.alibaba.otter.canal.connector.core.producer.MQDestination;
 import com.alibaba.otter.canal.connector.core.spi.CanalMQProducer;
+import com.alibaba.otter.canal.connector.core.util.Callback;
 import com.alibaba.otter.canal.instance.core.CanalInstance;
 import com.alibaba.otter.canal.instance.core.CanalMQConfig;
 import com.alibaba.otter.canal.protocol.ClientIdentity;
 import com.alibaba.otter.canal.protocol.Message;
 import com.alibaba.otter.canal.server.embedded.CanalServerWithEmbedded;
 
-import com.alibaba.otter.canal.connector.core.config.MQProperties;
-
 public class CanalMQStarter {
 
     private static final Logger          logger         = LoggerFactory.getLogger(CanalMQStarter.class);
@@ -170,8 +169,10 @@ public class CanalMQStarter {
                 while (running && destinationRunning.get()) {
                     Message message;
                     if (getTimeout != null && getTimeout > 0) {
-                        message = canalServer
-                            .getWithoutAck(clientIdentity, getBatchSize, getTimeout.longValue(), TimeUnit.MILLISECONDS);
+                        message = canalServer.getWithoutAck(clientIdentity,
+                            getBatchSize,
+                            getTimeout.longValue(),
+                            TimeUnit.MILLISECONDS);
                     } else {
                         message = canalServer.getWithoutAck(clientIdentity, getBatchSize);
                     }
diff --git a/sink/src/main/java/com/alibaba/otter/canal/sink/entry/EntryEventSink.java b/sink/src/main/java/com/alibaba/otter/canal/sink/entry/EntryEventSink.java
index 27df9074..4c719ec1 100644
--- a/sink/src/main/java/com/alibaba/otter/canal/sink/entry/EntryEventSink.java
+++ b/sink/src/main/java/com/alibaba/otter/canal/sink/entry/EntryEventSink.java
@@ -104,8 +104,12 @@ public class EntryEventSink extends AbstractCanalEventSink<List<CanalEntry.Entry
                     && Math.abs(currentTimestamp - lastTransactionTimestamp) <= emptyTransactionInterval) {
                     continue;
                 } else {
-                    lastTransactionCount.set(0L);
-                    lastTransactionTimestamp = currentTimestamp;
+                    // fixed issue https://github.com/alibaba/canal/issues/2616
+                    // 主要原因在于空事务只发送了begin，没有同步发送commit信息，这里修改为只对commit事件做计数更新，确保begin/commit成对出现
+                    if (entry.getEntryType() == EntryType.TRANSACTIONEND) {
+                        lastTransactionCount.set(0L);
+                        lastTransactionTimestamp = currentTimestamp;
+                    }
                 }
             }