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fixed issue #3494 , polardb-x 2.0 cdc support implicit_id/varaibles

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agapple
2021-04-28 13:42:55 +08:00
parent 5cc85ff2de
commit 474063af3b
5 changed files with 36 additions and 16 deletions
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parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/MysqlConnection.java
+2 -2
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@@ -21,7 +21,6 @@ import com.alibaba.otter.canal.parse.driver.mysql.MysqlQueryExecutor;
import com.alibaba.otter.canal.parse.driver.mysql.MysqlUpdateExecutor;
import com.alibaba.otter.canal.parse.driver.mysql.packets.GTIDSet;
import com.alibaba.otter.canal.parse.driver.mysql.packets.HeaderPacket;
import com.alibaba.otter.canal.parse.driver.mysql.packets.MysqlGTIDSet;
import com.alibaba.otter.canal.parse.driver.mysql.packets.client.BinlogDumpCommandPacket;
import com.alibaba.otter.canal.parse.driver.mysql.packets.client.BinlogDumpGTIDCommandPacket;
import com.alibaba.otter.canal.parse.driver.mysql.packets.client.RegisterSlaveCommandPacket;
@@ -444,7 +443,8 @@ public class MysqlConnection implements ErosaConnection {
// mysql5.6需要设置slave_uuid避免被server kill链接
update("set @slave_uuid=uuid()");
} catch (Exception e) {
if (!StringUtils.contains(e.getMessage(), "Unknown system variable")) {
if (!StringUtils.contains(e.getMessage(), "Unknown system variable")
&& !StringUtils.contains(e.getMessage(), "slave_uuid can't be set")) {
logger.warn("update slave_uuid failed", e);
}
}
parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/MysqlEventParser.java
+4 -2
View File
@@ -69,7 +69,8 @@ public class MysqlEventParser extends AbstractMysqlEventParser implements CanalE
private int dumpErrorCount = 0; // binlogDump失败异常计数
private int dumpErrorCountThreshold = 2; // binlogDump失败异常计数阀值
private boolean rdsOssMode = false;
private boolean autoResetLatestPosMode = false; // true: binlog被删除之后，自动按最新的数据订阅
private boolean autoResetLatestPosMode = false; // true:
// binlog被删除之后，自动按最新的数据订阅
protected ErosaConnection buildErosaConnection() {
return buildMysqlConnection(this.runningInfo);
@@ -486,7 +487,8 @@ public class MysqlEventParser extends AbstractMysqlEventParser implements CanalE
return findPosition;
}
// 处理 binlog 位点被删除的情况，提供自动重置到当前位点的功能
// 应用场景: 测试环境不稳定，位点经常被删。强烈不建议在正式环境中开启此控制参数，因为binlog 丢失调到最新位点也即意味着数据丢失
// 应用场景: 测试环境不稳定，位点经常被删。强烈不建议在正式环境中开启此控制参数，因为binlog
// 丢失调到最新位点也即意味着数据丢失
if (isAutoResetLatestPosMode()) {
dumpErrorCount = 0;
return findEndPosition(mysqlConnection);
parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/dbsync/LogEventConvert.java
+4 -1
View File
@@ -627,7 +627,7 @@ public class LogEventConvert extends AbstractCanalLifeCycle implements BinlogPar
}
if (tableMeta != null && columnInfo.length > tableMeta.getFields().size()) {
if (tableMetaCache.isOnRDS()) {
if (tableMetaCache.isOnRDS() || tableMetaCache.isOnPolarX()) {
// 特殊处理下RDS的场景
List<FieldMeta> primaryKeys = tableMeta.getPrimaryFields();
if (primaryKeys == null || primaryKeys.isEmpty()) {
@@ -680,6 +680,9 @@ 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#__";
if (tableMetaCache.isOnPolarX()) {
rdsRowIdColumnName = "_drds_implicit_id_";
}
buffer.nextValue(rdsRowIdColumnName, i, info.type, info.meta, false);
Column.Builder columnBuilder = Column.newBuilder();
columnBuilder.setName(rdsRowIdColumnName);
parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/dbsync/TableMetaCache.java
+17 -1
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@@ -39,6 +39,7 @@ public class TableMetaCache {
public static final String EXTRA = "EXTRA";
private MysqlConnection connection;
private boolean isOnRDS = false;
private boolean isOnPolarX = false;
private boolean isOnTSDB = false;
private TableMetaTSDB tableMetaTSDB;
@@ -79,6 +80,14 @@ public class TableMetaCache {
}
} catch (IOException e) {
}
try {
ResultSetPacket packet = connection.query("show global variables like 'polarx\\_%'");
if (packet.getFieldValues().size() > 0) {
isOnPolarX = true;
}
} catch (IOException e) {
}
}
private synchronized TableMeta getTableMetaByDB(String fullname) throws IOException {
@@ -254,7 +263,6 @@ public class TableMetaCache {
.toString();
}
public boolean isOnTSDB() {
return isOnTSDB;
}
@@ -271,4 +279,12 @@ public class TableMetaCache {
this.isOnRDS = isOnRDS;
}
public boolean isOnPolarX() {
return isOnPolarX;
}
public void setOnPolarX(boolean isOnPolarX) {
this.isOnPolarX = isOnPolarX;
}
}
parse/src/test/java/com/alibaba/otter/canal/parse/DirectLogFetcherTest.java
+3 -4
View File
@@ -13,7 +13,6 @@ import java.util.concurrent.TimeUnit;
import org.apache.commons.lang.StringUtils;
import org.junit.Assert;
import org.junit.Ignore;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@@ -46,7 +45,6 @@ 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 {
protected final Logger logger = LoggerFactory.getLogger(this.getClass());
@@ -58,7 +56,7 @@ public class DirectLogFetcherTest {
public void testSimple() {
DirectLogFetcher fetcher = new DirectLogFetcher();
try {
MysqlConnector connector = new MysqlConnector(new InetSocketAddress("127.0.0.1", 3306), "root", "hello");
MysqlConnector connector = new MysqlConnector(new InetSocketAddress("127.0.0.1", 3306), "canal", "canal");
connector.connect();
updateSettings(connector);
loadBinlogChecksum(connector);
@@ -210,7 +208,8 @@ public class DirectLogFetcherTest {
// mysql5.6需要设置slave_uuid避免被server kill链接
update("set @slave_uuid=uuid()", connector);
} catch (Exception e) {
if (!StringUtils.contains(e.getMessage(), "Unknown system variable")) {
if (!StringUtils.contains(e.getMessage(), "Unknown system variable")
&& !StringUtils.contains(e.getMessage(), "slave_uuid can't be set")) {
logger.warn("update slave_uuid failed", e);
}
}