Description:
MySQL 5.7.17 abnormal crash
I did not find obvious errors，just crash
Maybe it's an unknown problem ?
mysqld error log As shown below：
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2018-08-08T23:41:20.266556+08:00 2009811 [Note] Aborted connection 2009811 to : 'abs' user: 'absapp' host: '192.168.2.172' (Got an error reading communication packets)
2018-08-09T00:05:36.611101+08:00 2006927 [Warning] Timeout waiting for reply of binlog (file: mysql_bin.000474, pos: 712008094), semi-sync up to file mysql_bin.000474, position 667397154.
....
2018-08-09T00:06:30.010736+08:00 2013642 [Warning] Timeout waiting for reply of binlog (file: mysql_bin.000474, pos: 1044252398), semi-sync up to file mysql_bin.000474, position 1024772376.
2018-08-09T00:06:30.010757+08:00 2013642 [Note] Semi-sync replication switched OFF.
2018-08-09T00:06:30.158592+08:00 0 [Note] Semi-sync replication switched ON at (mysql_bin.000474, 1044252398)
2018-08-09T00:15:04.988574+08:00 2007454 [Note] Aborted connection 2007454 to : 'abs' user: 'absapp' host: '192.168.2.162' (Got an error reading communication packets)
2018-08-09T00:22:22.183248+08:00 2006605 [Note] Aborted connection 2006605 to : 'abs' user: 'absapp' host: '192.168.2.172' (Got an error reading communication packets)
'192.168.2.172' (Got an error reading communication packets)
2018-08-09T02:09:14.080650+08:00 1962902 [Note] Aborted connection 1962902 to : 'idm' user: 'idm' host: '192.168.2.172' (Got an error reading communication packets)
2018-08-09T02:09:14.080642+08:00 1962896 [Note] Aborted connection 1962896 to : 'idm' user: 'idm' host: '192.168.2.172' (Got an error reading communication packets)
2018-08-09T02:09:14.132448+08:00 0 [Note] Giving 972 client threads a chance to die gracefully
2018-08-09T02:09:14.149148+08:00 0 [Note] Shutting down slave threads
2018-08-09T02:09:14.149237+08:00 797 [Note] Error reading relay log event for channel '': slave SQL thread was killed
2018-08-09T02:09:14.215658+08:00 796 [Note] Slave I/O thread killed while reading event for channel ''
2018-08-09T02:09:14.215693+08:00 796 [Note] Slave I/O thread exiting for channel '', read up to log 'mysql_bin.000474', position 338844775
2018-08-09T02:09:22.234964+08:00 943 [Note] Stop semi-sync binlog_dump to slave (server_id: 10)
2018-08-09T02:09:22.761176+08:00 943 [Note] Semi-sync replication switched OFF.
2018-08-09T02:09:24.235010+08:00 0 [Note] Forcefully disconnecting 899 remaining clients
2018-08-09T02:09:24.235083+08:00 0 [Warning] ./bin/mysqld: Forcing close of thread 2012984 user: 'mysql'
2018-08-09T02:09:24.235100+08:00 0 [Warning] ./bin/mysqld: Forcing close of thread 2011034 user: 'mysql'
...........................
2018-08-09T02:09:24.255628+08:00 0 [Warning] ./bin/mysqld: Forcing close of thread 1963769 user: 'idm'
2018-08-09T02:09:24.255652+08:00 0 [Note] Event Scheduler: Purging the queue. 0 events
2018-08-09T02:09:24.308148+08:00 0 [Note] Binlog end
2018-08-09T02:09:24.486319+08:00 0 [Note] Shutting down plugin 'rpl_semi_sync_slave'
2018-08-09T02:09:24.486352+08:00 0 [Note] Shutting down plugin 'rpl_semi_sync_master'
2018-08-09T02:09:24.486370+08:00 0 [Note] Stopping ack receiver thread
2018-08-09T02:09:24.496941+08:00 0 [Note] unregister_replicator OK
2018-08-09T02:09:24.496956+08:00 0 [Note] Shutting down plugin 'ngram'
2018-08-09T02:09:24.496961+08:00 0 [Note] Shutting down plugin 'ARCHIVE'
2018-08-09T02:09:24.496965+08:00 0 [Note] Shutting down plugin 'partition'
2018-08-09T02:09:24.496968+08:00 0 [Note] Shutting down plugin 'BLACKHOLE'
2018-08-09T02:09:24.496975+08:00 0 [Note] Shutting down plugin 'CSV'
2018-08-09T02:09:24.496980+08:00 0 [Note] Shutting down plugin 'MEMORY'
......
2018-08-09T02:09:24.497114+08:00 0 [Note] Shutting down plugin 'Inno'
2018-08-09T02:09:24.510791+08:00 0 [Note] Inno: FTS optimize thread exiting.
2018-08-09T02:09:24.519576+08:00 0 [Note] Inno: Starting shutdown...
2018-08-09T02:09:24.619806+08:00 0 [Note] Inno: Dumping buffer pool(s) to /mysqldata/3339/ib_buffer_pool
2018-08-09T02:09:24.949678+08:00 0 [Note] Inno: Buffer pool(s) dump completed at 180809 2:09:24
2018-08-09T02:09:32.647624+08:00 0 [Note] Inno: Shutdown completed; log sequence number 1589364374198
2018-08-09T02:09:35.563693+08:00 0 [Note] Inno: Removed temporary tablespace data file: "ibtmp1"
2018-08-09T02:09:35.563740+08:00 0 [Note] Shutting down plugin 'PERFORMANCE_SCHEMA'
2018-08-09T02:09:35.563792+08:00 0 [Note] Shutting down plugin 'MyISAM'
2018-08-09T02:09:35.563816+08:00 0 [Note] Shutting down plugin 'sha256_password'
2018-08-09T02:09:35.563821+08:00 0 [Note] Shutting down plugin 'mysql_native_password'
2018-08-09T02:09:35.578997+08:00 0 [Note] Shutting down plugin 'binlog'
2018-08-09T02:09:35.609239+08:00 0 [Note] ./bin/mysqld: Shutdown complete
2018-08-08T18:09:36.216282Z mysqld_safe mysqld from pid file /mysqldata/3339/mysql.pid ended
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How to repeat:
Unknown
Suggested fix:
Unknown
