Details
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Bug
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Status: Closed (View Workflow)
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Critical
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Resolution: Fixed
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2.4.2
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None
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CentOS Linux release 7.7.1908 in lxc container.
Description
Hello.
I noticed periodic service fails on different servers with similar settings. Below are the traces from different servers at different times.
server1:
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2019-10-09 15:43:15 alert : Fatal: MaxScale 2.4.2 received fatal signal 11. Attempting backtrace.
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2019-10-09 15:43:15 alert : Commit ID: aad4148d77bf2dfbaa0042bc45abda30c101cad2 System name: Linux Release string: CentOS Linux release 7.7.1908 (Core)
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2019-10-09 15:43:15 alert : /usr/lib64/maxscale/libmysqlcommon.so.2.0.0(_ZN11LocalClient11queue_queryEP5GWBUF+0): server/modules/protocol/MySQL/mariadb_client.cc:52
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2019-10-09 15:43:15 alert : /usr/lib64/maxscale/libmysqlcommon.so.2.0.0(+0x738b): server/modules/protocol/MySQL/mysql_common.cc:1425
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2019-10-09 15:43:15 alert : /usr/lib64/maxscale/libmaxscale-common.so.1.0.0(_ZN7maxbase12MessageQueue18handle_poll_eventsEPNS_6WorkerEj+0x138): maxutils/maxbase/src/messagequeue.cc:291
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2019-10-09 15:43:15 alert : /usr/lib64/maxscale/libmaxscale-common.so.1.0.0(_ZN7maxbase6Worker15poll_waiteventsEv+0x196): maxutils/maxbase/src/worker.cc:858
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2019-10-09 15:43:15 alert : /usr/lib64/maxscale/libmaxscale-common.so.1.0.0(_ZN7maxbase6Worker3runEPNS_9SemaphoreE+0x53): maxutils/maxbase/src/worker.cc:559
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2019-10-09 15:43:15 alert : /usr/lib64/maxscale/libmaxscale-common.so.1.0.0(+0x1ad83f): thread48.o:?
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2019-10-09 15:43:15 alert : /lib64/libpthread.so.0(+0x7e65): pthread_create.c:?
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2019-10-09 15:43:15 alert : /lib64/libc.so.6(clone+0x6d): ??:?
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server2:
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2019-10-09 09:25:14 alert : Commit ID: aad4148d77bf2dfbaa0042bc45abda30c101cad2 System name: Linux Release string: NAME="CentOS Linux"
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2019-10-09 09:25:14 alert : /usr/lib64/maxscale/libmysqlcommon.so.2.0.0(_ZN11LocalClient11queue_queryEP5GWBUF+0): server/modules/protocol/MySQL/mariadb_client.cc:52
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2019-10-09 09:25:14 alert : /usr/lib64/maxscale/libmysqlcommon.so.2.0.0(+0x738b): server/modules/protocol/MySQL/mysql_common.cc:1425
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2019-10-09 09:25:14 alert : /usr/lib64/maxscale/libmaxscale-common.so.1.0.0(_ZN7maxbase12MessageQueue18handle_poll_eventsEPNS_6WorkerEj+0x138): maxutils/maxbase/src/messagequeue.cc:291
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2019-10-09 09:25:14 alert : /usr/lib64/maxscale/libmaxscale-common.so.1.0.0(_ZN7maxbase6Worker15poll_waiteventsEv+0x196): maxutils/maxbase/src/worker.cc:858
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2019-10-09 09:25:14 alert : /usr/lib64/maxscale/libmaxscale-common.so.1.0.0(_ZN7maxbase6Worker3runEPNS_9SemaphoreE+0x53): maxutils/maxbase/src/worker.cc:559
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2019-10-09 09:25:15 alert : /usr/lib64/maxscale/libmaxscale-common.so.1.0.0(+0x1ad83f): thread48.o:?
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2019-10-09 09:25:15 alert : /lib64/libpthread.so.0(+0x7dd5): pthread_create.c:?
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2019-10-09 09:25:15 alert : /lib64/libc.so.6(clone+0x6d): ??:?
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server3:
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2019-10-07 06:14:23 alert : Fatal: MaxScale 2.4.2 received fatal signal 11. Attempting backtrace.
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2019-10-07 06:14:23 alert : Commit ID: aad4148d77bf2dfbaa0042bc45abda30c101cad2 System name: Linux Release string: CentOS Linux release 7.7.1908 (Core)
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2019-10-07 06:14:23 alert : /usr/lib64/maxscale/libmysqlcommon.so.2.0.0(_ZN11LocalClient11queue_queryEP5GWBUF+0): server/modules/protocol/MySQL/mariadb_client.cc:52
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2019-10-07 06:14:23 alert : /usr/lib64/maxscale/libmysqlcommon.so.2.0.0(+0x738b): server/modules/protocol/MySQL/mysql_common.cc:1425
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2019-10-07 06:14:23 alert : /usr/lib64/maxscale/libmaxscale-common.so.1.0.0(_ZN7maxbase12MessageQueue18handle_poll_eventsEPNS_6WorkerEj+0x138): maxutils/maxbase/src/messagequeue.cc:291
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2019-10-07 06:14:23 alert : /usr/lib64/maxscale/libmaxscale-common.so.1.0.0(_ZN7maxbase6Worker15poll_waiteventsEv+0x196): maxutils/maxbase/src/worker.cc:858
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2019-10-07 06:14:23 alert : /usr/lib64/maxscale/libmaxscale-common.so.1.0.0(_ZN7maxbase6Worker3runEPNS_9SemaphoreE+0x53): maxutils/maxbase/src/worker.cc:559
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2019-10-07 06:14:23 alert : /usr/lib64/maxscale/libmaxscale-common.so.1.0.0(+0x1ad83f): thread48.o:?
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2019-10-07 06:14:23 alert : /lib64/libpthread.so.0(+0x7e65): pthread_create.c:?
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2019-10-07 06:14:23 alert : /lib64/libc.so.6(clone+0x6d): ??:?
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all servers have similar config:
[maxscale]
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threads=8
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query_retries=3
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[server-1]
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type=server
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address=server-1
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port=2306
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protocol=mariadbbackend
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[server-2]
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type=server
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address=server-2
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port=2306
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protocol=mariadbbackend
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[TheMonitor]
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type=monitor
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module=mariadbmon
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servers=server-1,server-2
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user=maxscale
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password=xxxxxxxxx
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monitor_interval=1000
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backend_connect_timeout=10
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backend_write_timeout=10
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backend_read_timeout=10
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detect_stale_master=true
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[Write-Service]
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type=service
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router=readconnroute
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router_options=master
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servers=server-1,server-2
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[Write-Listener]
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type=listener
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service=Write-Service
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protocol=MySQLClient
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port=3306
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