2020-06-23 00:00:14.984 [destination = omssaps , address = mysql-uat-new-mysqlha-readonly.zkh-uat.svc.cluster.local/192.168.228.211:3306 , EventParser] WARN c.a.o.c.p.inbo und.mysql.rds.RdsBinlogEventParserProxy - ---> begin to find start position, it will be long time for reset or first position 2020-06-23 00:00:15.024 [destination = omssaps , address = mysql-uat-new-mysqlha-readonly.zkh-uat.svc.cluster.local/192.168.228.211:3306 , EventParser] WARN c.a.o.c.p.inbo und.mysql.rds.RdsBinlogEventParserProxy - prepare to find start position just last position {"identity":{"slaveId":-1,"sourceAddress":{"address":"mysql-uat-new-mysqlha-readonly.zkh-uat.svc.cluster.local","port":3306}},"postion":{"gtid":"","included":false,"journa lName":"mysql-uat-new-mysqlha-0-bin.001768","position":345523555,"serverId":100,"timestamp":1585193491000}} 2020-06-23 00:00:15.042 [destination = omssaps , address = mysql-uat-new-mysqlha-readonly.zkh-uat.svc.cluster.local/192.168.228.211:3306 , EventParser] WARN c.a.o.c.p.inbo und.mysql.rds.RdsBinlogEventParserProxy - ---> find start position successfully, EntryPosition[included=false,journalName=mysql-uat-new-mysqlha-0-bin.001768,position=345523 555,serverId=100,gtid=,timestamp=1585193491000] cost : 58ms , the next step is binlog dump 2020-06-23 00:00:15.056 [destination = omssaps , address = mysql-uat-new-mysqlha-readonly.zkh-uat.svc.cluster.local/192.168.228.211:3306 , EventParser] ERROR c.a.o.canal.pa rse.inbound.mysql.dbsync.DirectLogFetcher - I/O error while reading from client socket java.io.IOException: Received error packet: errno = 1236, sqlstate = HY000 errmsg = Could not find first log file name in binary log index file at com.alibaba.otter.canal.parse.inbound.mysql.dbsync.DirectLogFetcher.fetch(DirectLogFetcher.java:102) ~[canal.parse-1.1.3.jar:na] at com.alibaba.otter.canal.parse.inbound.mysql.MysqlConnection.dump(MysqlConnection.java:235) [canal.parse-1.1.3.jar:na] at com.alibaba.otter.canal.parse.inbound.AbstractEventParser$3.run(AbstractEventParser.java:257) [canal.parse-1.1.3.jar:na] at java.lang.Thread.run(Thread.java:748) [na:1.8.0_181] 2020-06-23 00:00:15.056 [destination = omssaps , address = mysql-uat-new-mysqlha-readonly.zkh-uat.svc.cluster.local/192.168.228.211:3306 , EventParser] ERROR c.a.o.c.p.inbo und.mysql.rds.RdsBinlogEventParserProxy - dump address mysql-uat-new-mysqlha-readonly.zkh-uat.svc.cluster.local/192.168.228.211:3306 has an error, retrying. caused by java.io.IOException: Received error packet: errno = 1236, sqlstate = HY000 errmsg = Could not find first log file name in binary log index file at com.alibaba.otter.canal.parse.inbound.mysql.dbsync.DirectLogFetcher.fetch(DirectLogFetcher.java:102) ~[canal.parse-1.1.3.jar:na] at com.alibaba.otter.canal.parse.inbound.mysql.MysqlConnection.dump(MysqlConnection.java:235) ~[canal.parse-1.1.3.jar:na] at com.alibaba.otter.canal.parse.inbound.AbstractEventParser$3.run(AbstractEventParser.java:257) ~[canal.parse-1.1.3.jar:na] at java.lang.Thread.run(Thread.java:748) [na:1.8.0_181] 2020-06-23 00:00:15.057 [destination = omssaps , address = mysql-uat-new-mysqlha-readonly.zkh-uat.svc.cluster.local/192.168.228.211:3306 , EventParser] ERROR com.alibaba.ot ter.canal.common.alarm.LogAlarmHandler - destination:omssaps[java.io.IOException: Received error packet: errno = 1236, sqlstate = HY000 errmsg = Could not find first log fi le name in binary log index file 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:235) at com.alibaba.otter.canal.parse.inbound.AbstractEventParser$3.run(AbstractEventParser.java:257) at java.lang.Thread.run(Thread.java:748) ]
http://whitesock.iteye.com/blog/1329616
http://www.iteye.com/topic/1129002 七锋已经fix了canal的，要合到dbsync里面。
http://www.bitscn.com/pdb/mysql/201404/228411.html
http://mechanics.flite.com/blog/2014/04/29/disabling-binlog-checksum-for-mysql-5-dot-5-slash-5-dot-6-master-master-replication/
查询资料发现mysql版本为5.6时，
这个错误一般出现在master5.6,slave在低版本的情况下。这是由于5.6使用了crc32做binlog的checksum；
当一个event被写入binary log(二进制日志)的时候，checksum也同时写入binary log，然后在event通过网络传输到从服务器(slave)之后，再在从服务器中对其进行验证并写入从服务器的relay log.
由于每一步都记录了event和checksum，所以我们可以很快地找出问题所在。
在master1中设置binlog_checksum =none；
mysql> show variables like "%sum%";
+---------------------------+--------+
| Variable_name | Value |
+---------------------------+--------+
| binlog_checksum | CRC32 |
| innodb_checksum_algorithm | innodb |
| innodb_checksums | ON |
| master_verify_checksum | OFF |
| slave_sql_verify_checksum | ON |
+---------------------------+--------+
5 rows in set (0.00 sec)
mysql> set global binlog_checksum='NONE'
Query OK, 0 rows affected (0.09 sec)
mysql> show variables like "%sum%";
+---------------------------+--------+
| Variable_name | Value |
+---------------------------+--------+
| binlog_checksum | NONE |
| innodb_checksum_algorithm | innodb |
| innodb_checksums | ON |
| master_verify_checksum | OFF |
| slave_sql_verify_checksum | ON |
+---------------------------+--------+
————————————————
版权声明：本文为CSDN博主「arkblue」的原创文章，遵循CC 4.0 BY-SA版权协议，转载请附上原文出处链接及本声明。
原文链接：https://blog.csdn.net/arkblue/article/details/44280647
2020-06-23 20:36:04.987 [destination = omssaps , address = mysql.zkh360.com/120.27.222.64:13306 , EventParser] ERROR com.alibaba.otter.canal.common.alarm.LogAlarmHandl er - destination:omssaps[com.google.common.collect.ComputationException: com.alibaba.fastjson.JSONException: deserialize inet adress error at com.google.common.collect.MapMaker$ComputingMapAdapter.get(MapMaker.java:889) at com.alibaba.otter.canal.meta.MemoryMetaManager.getCursor(MemoryMetaManager.java:91) at com.alibaba.otter.canal.meta.PeriodMixedMetaManager.getCursor(PeriodMixedMetaManager.java:150) at com.alibaba.otter.canal.parse.index.MetaLogPositionManager.getLatestIndexBy(MetaLogPositionManager.java:57) at com.alibaba.otter.canal.parse.index.FailbackLogPositionManager.getLatestIndexBy(FailbackLogPositionManager.java:68) at com.alibaba.otter.canal.parse.inbound.mysql.MysqlEventParser.findStartPositionInternal(MysqlEventParser.java:424) at com.alibaba.otter.canal.parse.inbound.mysql.MysqlEventParser.findStartPosition(MysqlEventParser.java:366) at com.alibaba.otter.canal.parse.inbound.AbstractEventParser$3.run(AbstractEventParser.java:186) at java.lang.Thread.run(Thread.java:748) Caused by: com.alibaba.fastjson.JSONException: deserialize inet adress error at com.alibaba.fastjson.serializer.MiscCodec.deserialze(MiscCodec.java:316) at com.alibaba.fastjson.parser.DefaultJSONParser.parseObject(DefaultJSONParser.java:642) at com.alibaba.fastjson.parser.DefaultJSONParser.parseObject(DefaultJSONParser.java:610) at com.alibaba.fastjson.serializer.MiscCodec.deserialze(MiscCodec.java:189) at com.alibaba.fastjson.parser.deserializer.FastjsonASMDeserializer_3_LogIdentity.deserialze(Unknown Source) at com.alibaba.fastjson.parser.deserializer.JavaBeanDeserializer.deserialze(JavaBeanDeserializer.java:184) at com.alibaba.fastjson.parser.deserializer.FastjsonASMDeserializer_2_LogPosition.deserialze(Unknown Source) at com.alibaba.fastjson.parser.deserializer.JavaBeanDeserializer.deserialze(JavaBeanDeserializer.java:184) at com.alibaba.fastjson.parser.deserializer.JavaBeanDeserializer.deserialze(JavaBeanDeserializer.java:557) at com.alibaba.fastjson.parser.deserializer.JavaBeanDeserializer.deserialze(JavaBeanDeserializer.java:188) at com.alibaba.fastjson.parser.deserializer.JavaBeanDeserializer.deserialze(JavaBeanDeserializer.java:184) at com.alibaba.fastjson.parser.DefaultJSONParser.parseObject(DefaultJSONParser.java:642) at com.alibaba.fastjson.JSON.parseObject(JSON.java:350) at com.alibaba.fastjson.JSON.parseObject(JSON.java:318) at com.alibaba.fastjson.JSON.parseObject(JSON.java:281) at com.alibaba.fastjson.JSON.parseObject(JSON.java:381) at com.alibaba.fastjson.JSON.parseObject(JSON.java:361) at com.alibaba.otter.canal.common.utils.JsonUtils.unmarshalFromByte(JsonUtils.java:36) at com.alibaba.otter.canal.meta.ZooKeeperMetaManager.getCursor(ZooKeeperMetaManager.java:153) at com.alibaba.otter.canal.meta.PeriodMixedMetaManager$3.apply(PeriodMixedMetaManager.java:65) at com.alibaba.otter.canal.meta.PeriodMixedMetaManager$3.apply(PeriodMixedMetaManager.java:62) at com.google.common.collect.ComputingConcurrentHashMap$ComputingValueReference.compute(ComputingConcurrentHashMap.java:356) at com.google.common.collect.ComputingConcurrentHashMap$ComputingSegment.compute(ComputingConcurrentHashMap.java:182) at com.google.common.collect.ComputingConcurrentHashMap$ComputingSegment.getOrCompute(ComputingConcurrentHashMap.java:151) at com.google.common.collect.ComputingConcurrentHashMap.getOrCompute(ComputingConcurrentHashMap.java:67) at com.google.common.collect.MapMaker$ComputingMapAdapter.get(MapMaker.java:885) ... 8 more Caused by: java.net.UnknownHostException: mysql-uat-new-mysqlha-readonly.zkh-uat.svc.cluster.local: Name or service not known at java.net.Inet4AddressImpl.lookupAllHostAddr(Native Method) at java.net.InetAddress$2.lookupAllHostAddr(InetAddress.java:928) at java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1323) at java.net.InetAddress.getAllByName0(InetAddress.java:1276) at java.net.InetAddress.getAllByName(InetAddress.java:1192) at java.net.InetAddress.getAllByName(InetAddress.java:1126) at java.net.InetAddress.getByName(InetAddress.java:1076) at com.alibaba.fastjson.serializer.MiscCodec.deserialze(MiscCodec.java:314) ... 33 more ]