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mysql中切换主备canal时出现报错怎么解决-创新互联

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通过配置VIP，在进行主备切换时，出现的报错信息：

1.当主备节点当前binlog文件名称相同时，原主节点的position小于主备切换后的position，出现如下报错：

2020-07-02 15:08:09,332 INFO [destination = 1-236 , address = /192.168.3.100:3306 , EventParser] MysqlConnection:293 | Register slave RegisterSlaveCommandPacket[reportHost=192.168.3.1,reportPort=63292,reportUser=canal_repl_user,reportPasswd=111111,serverId=10236,command=21]
2020-07-02 15:08:21,227 INFO [destination = 1-236 , address = /192.168.3.100:3306 , EventParser] MysqlConnection:321 | COM_BINLOG_DUMP with position:BinlogDumpCommandPacket[binlogPosition=1104,slaveServerId=10236,binlogFileName=mysql-bin.000002,command=18]
2020-07-02 15:08:24,979 INFO [destination = 1-236 , address = /192.168.3.100:3306 , EventParser] LogEvent:122 | common_header_len= 19, number_of_event_types= 38
2020-07-02 15:08:24,983 ERROR [destination = 1-236 , address = /192.168.3.100:3306 , EventParser] DirectLogFetcher:163 | I/O error while reading from client socket
java.io.IOException: Received error packet: errno = 1236, sqlstate = HY000 errmsg = log event entry exceeded max_allowed_packet; Increase max_allowed_packet on master; the first event 'mysql-bin.000002' at 1104, the last event read from '/usr/local/mysql/logs/mysql-bin.000002' at 123, the last byte read from '/usr/local/mysql/logs/mysql-bin.000002' at 1123.
 at com.alibaba.otter.canal.parse.inbound.mysql.dbsync.DirectLogFetcher.fetch(DirectLogFetcher.java:102)
 at com.alibaba.otter.canal.parse.inbound.mysql.MysqlConnection.dump(MysqlConnection.java:169)
 at com.alibaba.otter.canal.parse.inbound.AbstractEventParser$3.run(AbstractEventParser.java:279)
 at java.lang.Thread.run(Thread.java:748)
2020-07-02 15:08:24,989 ERROR [destination = 1-236 , address = /192.168.3.100:3306 , EventParser] MysqlEventParser:301 | dump address 192.168.3.100/192.168.3.100:3306 has an error, retrying. caused by 
java.io.IOException: Received error packet: errno = 1236, sqlstate = HY000 errmsg = log event entry exceeded max_allowed_packet; Increase max_allowed_packet on master; the first event 'mysql-bin.000002' at 1104, the last event read from '/usr/local/mysql/logs/mysql-bin.000002' at 123, the last byte read from '/usr/local/mysql/logs/mysql-bin.000002' at 1123.
 at com.alibaba.otter.canal.parse.inbound.mysql.dbsync.DirectLogFetcher.fetch(DirectLogFetcher.java:102)
 at com.alibaba.otter.canal.parse.inbound.mysql.MysqlConnection.dump(MysqlConnection.java:169)
 at com.alibaba.otter.canal.parse.inbound.AbstractEventParser$3.run(AbstractEventParser.java:279)
 at java.lang.Thread.run(Thread.java:748)
2020-07-02 15:08:24,994 ERROR [destination = 1-236 , address = /192.168.3.100:3306 , EventParser] LogAlarmHandler:19 | destination:1-236[java.io.IOException: Received error packet: errno = 1236, sqlstate = HY000 errmsg = log event entry exceeded max_allowed_packet; Increase max_allowed_packet on master; the first event 'mysql-bin.000002' at 1104, the last event read from '/usr/local/mysql/logs/mysql-bin.000002' at 123, the last byte read from '/usr/local/mysql/logs/mysql-bin.000002' at 1123.
 at com.alibaba.otter.canal.parse.inbound.mysql.dbsync.DirectLogFetcher.fetch(DirectLogFetcher.java:102)
 at com.alibaba.otter.canal.parse.inbound.mysql.MysqlConnection.dump(MysqlConnection.java:169)
 at com.alibaba.otter.canal.parse.inbound.AbstractEventParser$3.run(AbstractEventParser.java:279)
 at java.lang.Thread.run(Thread.java:748)
]

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