采用OpenReplicator解析MySQL binlog

2024-09-02 11:08
文章标签 mysql 解析 采用 binlog database openreplicator

本文主要是介绍采用OpenReplicator解析MySQL binlog，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

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欢迎跳转到本文的原文链接：https://honeypps.com/backend/read-mysql-binlog-by-using-openreplicator/

Open Replicator是一个用Java编写的MySQL binlog分析程序。Open Replicator 首先连接到MySQL（就像一个普通的MySQL Slave一样），然后接收和分析binlog，最终将分析得出的binlog events以回调的方式通知应用。Open Replicator可以被应用到MySQL数据变化的实时推送，多Master到单Slave的数据同步等多种应用场景。Open Replicator目前只支持MySQL5.0及以上版本。
Open Replicator项目地址：https://github.com/whitesock/open-replicator

binlog事件分析结构图

这里写图片描述

在阅读下面的内容时，首先需要对binlog有一定的了解，可以 参考《MySQL Binlog解析》。

这里通过open-replicator解析binlog日志事件（binlog-format = row）。binlog日志事件里存在两种操作：DDL和DML，当DDL时输出一条sql，当DML时输出相关行信息。可以参考下面：

DDL（CREATE, ALTER, DROP, TRUNCATE，主要用在定义或改变表的结构）:

{"eventId": 1,"databaseName": "canal_test","tableName": "`company`","eventType": 2,"timestamp": 1477033198000,"timestampReceipt": 1477033248780,"binlogName": "mysql-bin.000006","position": 353,"nextPostion": 468,"serverId": 2,"before": null,"after": null,"isDdl": true,"sql": "DROP TABLE `company` /* generated by server */"
}

DML(SELECT, UPDATE, INSERT, DELETE，对数据库里的数据进行操作):

{"eventId": 0,"databaseName": "canal_test","tableName": "person","eventType": 24,"timestamp": 1477030734000,"timestampReceipt": 1477032161988,"binlogName": "mysql-bin.000006","position": 242,"nextPostion": 326,"serverId": 2,"before": {"id": "3","sex": "f","address": "shanghai","age": "23","name": "zzh3"},"after": {"id": "3","sex": "m","address": "shanghai","age": "23","name": "zzh3"},"isDdl": false,"sql": null
}

相关的类文件如下：
CDCEvent.java

package or;import java.util.Map;
import java.util.concurrent.atomic.AtomicLong;import com.google.code.or.binlog.BinlogEventV4;
import com.google.code.or.binlog.BinlogEventV4Header;
import com.google.code.or.binlog.impl.event.AbstractBinlogEventV4;public class CDCEvent {private long eventId = 0;//事件唯一标识private String databaseName = null;private String tableName = null;private int eventType = 0;//事件类型private long timestamp = 0;//事件发生的时间戳[MySQL服务器的时间]private long timestampReceipt = 0;//Open-replicator接收到的时间戳[CDC执行的时间戳]private String binlogName = null;// binlog file nameprivate long position = 0;private long nextPostion = 0;private long serverId = 0;private Map<String,String> before = null;private Map<String,String> after = null;private Boolean isDdl= null;private String sql = null;private static AtomicLong uuid = new AtomicLong(0);public CDCEvent(){}public CDCEvent(final AbstractBinlogEventV4 are, String databaseName, String tableName){this.init(are);this.databaseName = databaseName;this.tableName = tableName;}private void init(final BinlogEventV4 be){this.eventId = uuid.getAndAdd(1);BinlogEventV4Header header = be.getHeader();this.timestamp = header.getTimestamp();this.eventType = header.getEventType();this.serverId = header.getServerId();this.timestampReceipt = header.getTimestampOfReceipt();this.position = header.getPosition();this.nextPostion = header.getNextPosition();this.binlogName = header.getBinlogFileName();}@Overridepublic String toString(){StringBuilder builder = new StringBuilder();builder.append("{ eventId:").append(eventId);builder.append(",databaseName:").append(databaseName);builder.append(",tableName:").append(tableName);builder.append(",eventType:").append(eventType);builder.append(",timestamp:").append(timestamp);builder.append(",timestampReceipt:").append(timestampReceipt);builder.append(",binlogName:").append(binlogName);builder.append(",position:").append(position);builder.append(",nextPostion:").append(nextPostion);builder.append(",serverId:").append(serverId);builder.append(",isDdl:").append(isDdl);builder.append(",sql:").append(sql);builder.append(",before:").append(before);builder.append(",after:").append(after).append("}");return builder.toString();}
// 省略Getter和Setter方法	
}

open-replicator的解析主要是通过注册Listener的形式实现的，整个过程最重要的步骤在下面：
InstanceListener.java

package or;import java.util.HashMap;
import java.util.List;
import java.util.Map;import or.keeper.TableInfoKeeper;
import or.manager.CDCEventManager;
import or.model.ColumnInfo;
import or.model.TableInfo;import org.slf4j.Logger;
import org.slf4j.LoggerFactory;import com.google.code.or.binlog.BinlogEventListener;
import com.google.code.or.binlog.BinlogEventV4;
import com.google.code.or.binlog.impl.event.DeleteRowsEvent;
import com.google.code.or.binlog.impl.event.FormatDescriptionEvent;
import com.google.code.or.binlog.impl.event.QueryEvent;
import com.google.code.or.binlog.impl.event.TableMapEvent;
import com.google.code.or.binlog.impl.event.UpdateRowsEvent;
import com.google.code.or.binlog.impl.event.WriteRowsEvent;
import com.google.code.or.binlog.impl.event.XidEvent;
import com.google.code.or.common.glossary.Column;
import com.google.code.or.common.glossary.Pair;
import com.google.code.or.common.glossary.Row;
import com.google.code.or.common.util.MySQLConstants;public class InstanceListener implements BinlogEventListener{private static final Logger logger = LoggerFactory.getLogger(InstanceListener.class);@Overridepublic void onEvents(BinlogEventV4 be) {if(be == null){logger.error("binlog event is null");return;}int eventType = be.getHeader().getEventType();switch(eventType){case MySQLConstants.FORMAT_DESCRIPTION_EVENT:{logger.trace("FORMAT_DESCRIPTION_EVENT");break;}case MySQLConstants.TABLE_MAP_EVENT://每次ROW_EVENT前都伴随一个TABLE_MAP_EVENT事件，保存一些表信息，如tableId, tableName, databaseName, 而ROW_EVENT只有tableId{TableMapEvent tme = (TableMapEvent)be;TableInfoKeeper.saveTableIdMap(tme);logger.trace("TABLE_MAP_EVENT:tableId:{}",tme.getTableId());break;}case MySQLConstants.DELETE_ROWS_EVENT:{DeleteRowsEvent dre = (DeleteRowsEvent) be;long tableId = dre.getTableId();logger.trace("DELETE_ROW_EVENT:tableId:{}",tableId);TableInfo tableInfo = TableInfoKeeper.getTableInfo(tableId);String databaseName = tableInfo.getDatabaseName();String tableName = tableInfo.getTableName();List<Row> rows = dre.getRows();for(Row row:rows){List<Column> before = row.getColumns();Map<String,String> beforeMap = getMap(before,databaseName,tableName);if(beforeMap !=null && beforeMap.size()>0){CDCEvent cdcEvent = new CDCEvent(dre,databaseName,tableName);cdcEvent.setIsDdl(false);cdcEvent.setSql(null);cdcEvent.setBefore(beforeMap);CDCEventManager.queue.addLast(cdcEvent);logger.info("cdcEvent:{}",cdcEvent);}}break;}case MySQLConstants.UPDATE_ROWS_EVENT:{UpdateRowsEvent upe = (UpdateRowsEvent)be;long tableId = upe.getTableId();logger.info("UPDATE_ROWS_EVENT:tableId:{}",tableId);TableInfo tableInfo = TableInfoKeeper.getTableInfo(tableId);String databaseName = tableInfo.getDatabaseName();String tableName = tableInfo.getTableName();List<Pair<Row>> rows = upe.getRows();for(Pair<Row> p:rows){List<Column> colsBefore = p.getBefore().getColumns();List<Column> colsAfter = p.getAfter().getColumns();Map<String,String> beforeMap = getMap(colsBefore,databaseName,tableName);Map<String,String> afterMap = getMap(colsAfter,databaseName,tableName);if(beforeMap!=null && afterMap!=null && beforeMap.size()>0 && afterMap.size()>0){CDCEvent cdcEvent = new CDCEvent(upe,databaseName,tableName);cdcEvent.setIsDdl(false);cdcEvent.setSql(null);cdcEvent.setBefore(beforeMap);cdcEvent.setAfter(afterMap);CDCEventManager.queue.addLast(cdcEvent);logger.info("cdcEvent:{}",cdcEvent);}}break;}case MySQLConstants.WRITE_ROWS_EVENT:{WriteRowsEvent wre = (WriteRowsEvent)be;long tableId = wre.getTableId();logger.trace("WRITE_ROWS_EVENT:tableId:{}",tableId);TableInfo tableInfo = TableInfoKeeper.getTableInfo(tableId);String databaseName = tableInfo.getDatabaseName();String tableName = tableInfo.getTableName();List<Row> rows = wre.getRows();for(Row row: rows){List<Column> after = row.getColumns();Map<String,String> afterMap = getMap(after,databaseName,tableName);if(afterMap!=null && afterMap.size()>0){CDCEvent cdcEvent = new CDCEvent(wre,databaseName,tableName);cdcEvent.setIsDdl(false);cdcEvent.setSql(null);cdcEvent.setAfter(afterMap);CDCEventManager.queue.addLast(cdcEvent);logger.info("cdcEvent:{}",cdcEvent);}}break;}case MySQLConstants.QUERY_EVENT:{QueryEvent qe = (QueryEvent)be;TableInfo tableInfo = createTableInfo(qe);if(tableInfo == null)break;String databaseName = tableInfo.getDatabaseName();String tableName = tableInfo.getTableName();logger.trace("QUERY_EVENT:databaseName:{},tableName:{}",databaseName,tableName);CDCEvent cdcEvent = new CDCEvent(qe,databaseName,tableName);cdcEvent.setIsDdl(true);cdcEvent.setSql(qe.getSql().toString());CDCEventManager.queue.addLast(cdcEvent);logger.info("cdcEvent:{}",cdcEvent);break;}case MySQLConstants.XID_EVENT:{XidEvent xe = (XidEvent)be;logger.trace("XID_EVENT: xid:{}",xe.getXid());break;}default:{logger.trace("DEFAULT:{}",eventType);break;}}}/*** ROW_EVENT中是没有Column信息的，需要通过MysqlConnection（下面会讲到）的方式读取列名信息，* 然后跟取回的List<Column>进行映射。* * @param cols* @param databaseName* @param tableName* @return*/private Map<String,String> getMap(List<Column> cols, String databaseName, String tableName){Map<String,String> map = new HashMap<>();if(cols == null || cols.size()==0){return null;}String fullName = databaseName+"."+tableName;List<ColumnInfo> columnInfoList = TableInfoKeeper.getColumns(fullName);if(columnInfoList == null)return null;if(columnInfoList.size() != cols.size()){TableInfoKeeper.refreshColumnsMap();if(columnInfoList.size() != cols.size()){logger.warn("columnInfoList.size is not equal to cols.");return null;}}for(int i=0;i<columnInfoList.size(); i++){if(cols.get(i).getValue()==null)map.put(columnInfoList.get(i).getName(),"");elsemap.put(columnInfoList.get(i).getName(), cols.get(i).toString());}return map;}/*** 从sql中提取Table信息，因为QUERY_EVENT是对应DATABASE这一级别的，不像ROW_EVENT是对应TABLE这一级别的，* 所以需要通过从sql中提取TABLE信息,封装到TableInfo对象中* * @param qe* @return*/	private TableInfo createTableInfo(QueryEvent qe){String sql = qe.getSql().toString().toLowerCase();TableInfo ti = new TableInfo();String databaseName = qe.getDatabaseName().toString();String tableName = null;if(checkFlag(sql,"table")){tableName = getTableName(sql,"table");} else if(checkFlag(sql,"truncate")){tableName = getTableName(sql,"truncate");} else{logger.warn("can not find table name from sql:{}",sql);return null;}ti.setDatabaseName(databaseName);ti.setTableName(tableName);ti.setFullName(databaseName+"."+tableName);return ti;}private boolean checkFlag(String sql, String flag){String[] ss = sql.split(" ");for(String s:ss){if(s.equals(flag)){return true;}}return false;}private String getTableName(String sql, String flag){String[] ss = sql.split("\\.");String tName = null;if (ss.length > 1) {String[] strs = ss[1].split(" ");tName = strs[0];} else {String[] strs = sql.split(" ");boolean start = false;for (String s : strs) {if (s.indexOf(flag) >= 0) {start = true;continue;}if (start && !s.isEmpty()) {tName = s;break;}}}tName.replaceAll("`", "").replaceAll(";", "");//del "("[create table person(....]int index = tName.indexOf('(');if(index>0){tName = tName.substring(0, index);}return tName;}
}

上面所涉及到的TableInfo .java如下：

package or.model;public class TableInfo {private String databaseName;private String tableName;private String fullName;// 省略Getter和Setter@Overridepublic boolean equals(Object o){if(this == o)return true;if(o == null || this.getClass()!=o.getClass())return false;TableInfo tableInfo = (TableInfo)o;if(!this.databaseName.equals(tableInfo.getDatabaseName()))return false;if(!this.tableName.equals(tableInfo.getTableName()))return false;if(!this.fullName.equals(tableInfo.getFullName()))return false;return true;}@Overridepublic int hashCode(){int result = this.tableName.hashCode();result = 31*result+this.databaseName.hashCode();result = 31*result+this.fullName.hashCode();return result;}
}

接着需要有个地方保存从TABLE_MAP_EVENT中提取到的信息，TableInfoKeeper .java

package or.keeper;import java.util.List;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;import or.MysqlConnection;
import or.model.ColumnInfo;
import or.model.TableInfo;import org.slf4j.Logger;
import org.slf4j.LoggerFactory;import com.google.code.or.binlog.impl.event.TableMapEvent;public class TableInfoKeeper {private static final Logger logger = LoggerFactory.getLogger(TableInfoKeeper.class);private static Map<Long,TableInfo> tabledIdMap = new ConcurrentHashMap<>();private static Map<String,List<ColumnInfo>> columnsMap = new ConcurrentHashMap<>();static{columnsMap = MysqlConnection.getColumns();}public static void saveTableIdMap(TableMapEvent tme){long tableId = tme.getTableId();tabledIdMap.remove(tableId);TableInfo table = new TableInfo();table.setDatabaseName(tme.getDatabaseName().toString());table.setTableName(tme.getTableName().toString());table.setFullName(tme.getDatabaseName()+"."+tme.getTableName());tabledIdMap.put(tableId, table);}public static synchronized void refreshColumnsMap(){Map<String,List<ColumnInfo>> map = MysqlConnection.getColumns();if(map.size()>0){
//			logger.warn("refresh and clear cols.");columnsMap = map;
//			logger.warn("refresh and switch cols:{}",map);}else{logger.error("refresh columnsMap error.");}}public static TableInfo getTableInfo(long tableId){return tabledIdMap.get(tableId);}public static List<ColumnInfo> getColumns(String fullName){return columnsMap.get(fullName);}
}

正如上面InstanceListener中提到的，有些信息需要直接从MySQL中读取，比如数据库表的列信息，相关的类MysqlConnection如下：

package or;import java.sql.Connection;
import java.sql.DatabaseMetaData;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;import or.model.BinlogInfo;
import or.model.BinlogMasterStatus;
import or.model.ColumnInfo;import org.slf4j.Logger;
import org.slf4j.LoggerFactory;public class MysqlConnection {private static final Logger logger = LoggerFactory.getLogger(MysqlConnection.class);private static Connection conn;private static String host;private static int port;private static String user;private static String password;public static void setConnection(String hostArg, int portArg, String userArg, String passwordArg){try {if(conn == null || conn.isClosed()){Class.forName("com.mysql.jdbc.Driver");host = hostArg;port = portArg;user = userArg;password = passwordArg;conn = DriverManager.getConnection("jdbc:mysql://"+host+":"+port+"/",user,password);logger.info("connected to mysql:{} : {}",user,password);}} catch (ClassNotFoundException e) {logger.error(e.getMessage(),e);} catch (SQLException e) {logger.error(e.getMessage(),e);}}public static Connection getConnection(){try {if(conn == null || conn.isClosed()){setConnection(host,port,user,password);}} catch (SQLException e) {logger.error(e.getMessage(),e);}return conn;}/*** 获取Column信息* * @return*/public static Map<String,List<ColumnInfo>> getColumns(){Map<String,List<ColumnInfo>> cols = new HashMap<>();Connection conn = getConnection();try {DatabaseMetaData metaData = conn.getMetaData();ResultSet r = metaData.getCatalogs();String tableType[] = {"TABLE"};while(r.next()){String databaseName = r.getString("TABLE_CAT");ResultSet result = metaData.getTables(databaseName, null, null, tableType);while(result.next()){String tableName = result.getString("TABLE_NAME");
//					System.out.println(result.getInt("TABLE_ID"));String key = databaseName +"."+tableName;ResultSet colSet = metaData.getColumns(databaseName, null, tableName, null);cols.put(key, new ArrayList<ColumnInfo>());while(colSet.next()){ColumnInfo columnInfo = new ColumnInfo(colSet.getString("COLUMN_NAME"),colSet.getString("TYPE_NAME"));cols.get(key).add(columnInfo);}}}} catch (SQLException e) { logger.error(e.getMessage(),e);}	return cols;}/*** 参考* mysql> show binary logs*  +------------------+-----------+*	| Log_name         | File_size |*	+------------------+-----------+*	| mysql-bin.000001 |       126 |*	| mysql-bin.000002 |       126 |*	| mysql-bin.000003 |      6819 |*	| mysql-bin.000004 |      1868 |*	+------------------+-----------+*/public static List<BinlogInfo> getBinlogInfo(){List<BinlogInfo> binlogList = new ArrayList<>();Connection conn = null;Statement statement = null;ResultSet resultSet = null;try {conn = getConnection();statement = conn.createStatement();resultSet = statement.executeQuery("show binary logs");while(resultSet.next()){BinlogInfo binlogInfo = new BinlogInfo(resultSet.getString("Log_name"),resultSet.getLong("File_size"));binlogList.add(binlogInfo);}} catch (Exception e) {logger.error(e.getMessage(),e);} finally{try {if(resultSet != null)resultSet.close();if(statement != null)statement.close();if(conn != null)conn.close();} catch (SQLException e) {logger.error(e.getMessage(),e);}}return binlogList;}/*** 参考：	* mysql> show master status;* 	+------------------+----------+--------------+------------------+* 	| File             | Position | Binlog_Do_DB | Binlog_Ignore_DB |* 	+------------------+----------+--------------+------------------+* 	| mysql-bin.000004 |     1868 |              |                  |* 	+------------------+----------+--------------+------------------+* @return*/public static BinlogMasterStatus getBinlogMasterStatus(){BinlogMasterStatus binlogMasterStatus = new BinlogMasterStatus();Connection conn = null;Statement statement = null;ResultSet resultSet = null;try {conn = getConnection();statement = conn.createStatement();resultSet = statement.executeQuery("show master status");while(resultSet.next()){binlogMasterStatus.setBinlogName(resultSet.getString("File"));binlogMasterStatus.setPosition(resultSet.getLong("Position"));}} catch (Exception e) {logger.error(e.getMessage(),e);} finally{try {if(resultSet != null)resultSet.close();if(statement != null)statement.close();if(conn != null)conn.close();} catch (SQLException e) {logger.error(e.getMessage(),e);}}return binlogMasterStatus;}/*** 获取open-replicator所连接的mysql服务器的serverid信息* @return*/public static int getServerId(){int serverId=6789;Connection conn = null;Statement statement = null;ResultSet resultSet = null;try {conn = getConnection();statement = conn.createStatement();resultSet = statement.executeQuery("show variables like 'server_id'");while(resultSet.next()){serverId = resultSet.getInt("Value");}} catch (Exception e) {logger.error(e.getMessage(),e);} finally{try {if(resultSet != null)resultSet.close();if(statement != null)statement.close();if(conn != null)conn.close();} catch (SQLException e) {logger.error(e.getMessage(),e);}}return serverId;}
}

上面代码设计的附加类（BinlogInfo.java; BinlogMasterStatus.java; ColumnInfo.java）

package or.model;
public class BinlogInfo {private String binlogName;private Long fileSize;// 省略Getter和Setter
}package or.model;
public class BinlogMasterStatus {private String binlogName;private long position;// 省略Getter和Setter
}package or.model;
public class ColumnInfo {private String name;private String type;// 省略Getter和Setter
}

最后还要有个地方存储解析之后的事件信息，这里简要设计下，采用一个ConcurrentLinkedDeque好了（CDCEventManager.java）

package or.manager;
import java.util.concurrent.ConcurrentLinkedDeque;
import or.CDCEvent;
public class CDCEventManager {public static final ConcurrentLinkedDeque<CDCEvent> queue = new ConcurrentLinkedDeque<>();
}

所有的准备工作都完成了，下面可以解析binlog日志了：

package or.test;import java.util.concurrent.TimeUnit;import org.slf4j.Logger;
import org.slf4j.LoggerFactory;import or.CDCEvent;
import or.InstanceListener;
import or.MysqlConnection;
import or.OpenReplicatorPlus;
import or.manager.CDCEventManager;
import or.model.BinlogMasterStatus;import com.google.code.or.OpenReplicator;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import com.google.gson.JsonElement;
import com.google.gson.JsonParser;public class OpenReplicatorTest {private static final Logger logger = LoggerFactory.getLogger(OpenReplicatorTest.class);private static final String host = "xx.xx.xx.60";private static final int port = 3306;private static final String user = "****";private static final String password = "****";public static void main(String[] args){OpenReplicator or = new OpenReplicator ();or.setUser(user);or.setPassword(password);or.setHost(host);or.setPort(port);MysqlConnection.setConnection(host, port, user, password);//		or.setServerId(MysqlConnection.getServerId());//配置里的serverId是open-replicator(作为一个slave)的id,不是master的serverIdBinlogMasterStatus bms = MysqlConnection.getBinlogMasterStatus();or.setBinlogFileName(bms.getBinlogName());
//		or.setBinlogFileName("mysql-bin.000004");or.setBinlogPosition(4);or.setBinlogEventListener(new InstanceListener());try {or.start();} catch (Exception e) {logger.error(e.getMessage(),e);}Thread thread = new Thread(new PrintCDCEvent());thread.start();}public static class PrintCDCEvent implements Runnable{@Overridepublic void run() {while(true){if(CDCEventManager.queue.isEmpty() == false){CDCEvent ce = CDCEventManager.queue.pollFirst();Gson gson = new GsonBuilder().setPrettyPrinting().serializeNulls().create();String prettyStr1 = gson.toJson(ce);System.out.println(prettyStr1);	}else{try {TimeUnit.SECONDS.sleep(1);} catch (InterruptedException e) {e.printStackTrace();}}}}		}
}

时间运行旧了会遇到这样一个问题：

16-10-21 10:41:49.365 ERROR[binlog-parser-1 AbstractBinlogParser.run:247] failed to parse binlog
java.io.EOFException: nullat com.google.code.or.io.util.ActiveBufferedInputStream.read(ActiveBufferedInputStream.java:169) ~[open-replicator-1.0.7.jar:na]at com.google.code.or.io.impl.XInputStreamImpl.doFill(XInputStreamImpl.java:236) ~[open-replicator-1.0.7.jar:na]at com.google.code.or.io.impl.XInputStreamImpl.read(XInputStreamImpl.java:213) ~[open-replicator-1.0.7.jar:na]at com.google.code.or.io.impl.XInputStreamImpl.readInt(XInputStreamImpl.java:141) ~[open-replicator-1.0.7.jar:na]at com.google.code.or.io.impl.XInputStreamImpl.readInt(XInputStreamImpl.java:61) ~[open-replicator-1.0.7.jar:na]at com.google.code.or.binlog.impl.ReplicationBasedBinlogParser.doParse(ReplicationBasedBinlogParser.java:91) ~[open-replicator-1.0.7.jar:na]at com.google.code.or.binlog.impl.AbstractBinlogParser$Task.run(AbstractBinlogParser.java:244) ~[open-replicator-1.0.7.jar:na]at java.lang.Thread.run(Unknown Source) [na:1.7.0_80]
16-10-21 10:41:49.371 INFO [binlog-parser-1 TransportImpl.disconnect:121] disconnected from xx.xx.xx.60:3306

初步解决方案(extends OpenReplicator然后添加重试机制)：

package or;import java.util.concurrent.TimeUnit;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.google.code.or.OpenReplicator;public class OpenReplicatorPlus extends OpenReplicator{private static final Logger logger = LoggerFactory.getLogger(OpenReplicatorPlus.class);private volatile boolean autoRestart = true;@Overridepublic void stopQuietly(long timeout, TimeUnit unit){super.stopQuietly(timeout, unit);if(autoRestart){try {TimeUnit.SECONDS.sleep(10);logger.error("Restart OpenReplicator");} catch (InterruptedException e) {e.printStackTrace();}}}
}

最后只需将OpenReplicatorTest.java中的OpenReplicator or = new OpenReplicator ();改为OpenReplicator or = new OpenReplicatorPlus ();即可。

大功告成~~

参考资料

  1. 谈谈对Canal（增量数据订阅与消费）的理解
  2. MySQL主备复制原理、实现及异常处理
  3. https://github.com/whitesock/open-replicator

欢迎跳转到本文的原文链接：https://honeypps.com/backend/read-mysql-binlog-by-using-openreplicator/

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《Springboot中分析SQL性能的两种方式详解》文章介绍了SQL性能分析的两种方式：MyBatis-Plus性能分析插件和p6spy框架,MyBatis-Plus插件配置简单,适用于开发和测试环... 目录SQL性能分析的两种方式:功能介绍实现方式:实现步骤:SQL性能分析的两种方式:功能介绍记录
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使用 sql-research-assistant进行 SQL 数据库研究的实战指南(代码实现演示)

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《使用sql-research-assistant进行SQL数据库研究的实战指南(代码实现演示)》本文介绍了sql-research-assistant工具,该工具基于LangChain框架,集... 目录技术背景介绍核心原理解析代码实现演示安装和配置项目集成LangSmith 配置（可选）启动服务应用场景
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oracle DBMS_SQL.PARSE的使用方法和示例

oracle DBMS_SQL.PARSE的使用方法和示例

《oracleDBMS_SQL.PARSE的使用方法和示例》DBMS_SQL是Oracle数据库中的一个强大包,用于动态构建和执行SQL语句,DBMS_SQL.PARSE过程解析SQL语句或PL/S... 目录语法示例注意事项DBMS_SQL 是 oracle 数据库中的一个强大包，它允许动态地构建和执行
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SQL 中多表查询的常见连接方式详解

SQL 中多表查询的常见连接方式详解

《SQL中多表查询的常见连接方式详解》本文介绍SQL中多表查询的常见连接方式,包括内连接（INNERJOIN）、左连接（LEFTJOIN）、右连接（RIGHTJOIN）、全外连接（FULLOUTER... 目录一、连接类型图表（ASCII 形式）二、前置代码（创建示例表）三、连接方式代码示例1. 内连接（I
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在MySQL执行UPDATE语句时遇到的错误1175的解决方案

在MySQL执行UPDATE语句时遇到的错误1175的解决方案

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轻松上手MYSQL之JSON函数实现高效数据查询与操作

轻松上手MYSQL之JSON函数实现高效数据查询与操作

《轻松上手MYSQL之JSON函数实现高效数据查询与操作》：本文主要介绍轻松上手MYSQL之JSON函数实现高效数据查询与操作的相关资料,MySQL提供了多个JSON函数,用于处理和查询JSON数... 目录一、jsON_EXTRACT 提取指定数据二、JSON_UNQUOTE 取消双引号三、JSON_KE
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MySql死锁怎么排查的方法实现

MySql死锁怎么排查的方法实现

《MySql死锁怎么排查的方法实现》本文主要介绍了MySql死锁怎么排查的方法实现,文中通过示例代码介绍的非常详细,对大家的学习或者工作具有一定的参考学习价值,需要的朋友们下面随着小编来一起学习学习吧... 目录前言一、死锁排查方法1. 查看死锁日志方法 1：启用死锁日志输出方法 2：检查 mysql 错误
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MySQL数据库函数之JSON_EXTRACT示例代码

MySQL数据库函数之JSON_EXTRACT示例代码

《MySQL数据库函数之JSON_EXTRACT示例代码》：本文主要介绍MySQL数据库函数之JSON_EXTRACT的相关资料,JSON_EXTRACT()函数用于从JSON文档中提取值,支持对... 目录前言基本语法路径表达式示例示例 1: 提取简单值示例 2: 提取嵌套值示例 3: 提取数组中的值注意
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MySQL修改密码的四种实现方式

MySQL修改密码的四种实现方式

《MySQL修改密码的四种实现方式》文章主要介绍了如何使用命令行工具修改MySQL密码,包括使用`setpassword`命令和`mysqladmin`命令,此外,还详细描述了忘记密码时的处理方法,包... 目录mysql修改密码四种方式一、set password命令二、使用mysqladmin三、修改u
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C语言中自动与强制转换全解析

C语言中自动与强制转换全解析

《C语言中自动与强制转换全解析》在编写C程序时,类型转换是确保数据正确性和一致性的关键环节,无论是隐式转换还是显式转换,都各有特点和应用场景,本文将详细探讨C语言中的类型转换机制,帮助您更好地理解并在... 目录类型转换的重要性自动类型转换（隐式转换）强制类型转换（显式转换）常见错误与注意事项总结与建议类型
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