mariadb@s6 log at db2097:
It seems it was restarted normally on the 6th, upgraded from 10.1.38 and mysql_upgrade was run:
Jun 06 06:04:47 db2097 systemd[1]: Stopping mariadb database server [...] Jun 06 06:05:29 db2097 mysqld[3188]: 2019-06-06 6:05:29 139893604645632 [Note] /opt/wmf-mariadb101/bin/mysqld: Shutdown complete Jun 06 06:05:29 db2097 systemd[1]: Stopped mariadb database server. Jun 06 06:05:42 db2097 systemd[1]: Starting mariadb database server... [...] Jun 06 06:05:55 db2097 mysqld[20741]: Version: '10.1.39-MariaDB' socket: '/run/mysqld/my sqld.s6.sock' port: 3316 MariaDB Server
Lots of grants skips, but nothing unexpected.
A master change happened around that time:
Jun 06 06:53:03 db2097 mysqld[20741]: 2019-06-06 6:53:03 140306785355520 [Note] 'CHANGE MASTER TO executed'
Skipping details because I don't see anything relevant.
Then, 2 days later:
Jun 06 11:43:15 db2097 mysqld[20741]: 2019-06-06 11:43:15 7f67747f7700 InnoDB: Buffer poo l(s) load completed at 190606 11:43:15 Jun 08 11:15:14 db2097 mysqld[20741]: 190608 11:15:14 [ERROR] mysqld got signal 7 ; Jun 08 11:15:14 db2097 mysqld[20741]: This could be because you hit a bug. It is also pos sible that this binary ... Jun 08 11:15:14 db2097 mysqld[20741]: stack_bottom = 0x0 thread_stack 0x49000 Jun 08 11:15:15 db2097 mysqld[20741]: /opt/wmf-mariadb101/bin/mysqld(my_print_stacktrace+0x2e)[0x5645f0cd702e] Jun 08 11:15:15 db2097 mysqld[20741]: /opt/wmf-mariadb101/bin/mysqld(handle_fatal_signal+0x3bd)[0x5645f081817d] Jun 08 11:15:15 db2097 mysqld[20741]: /lib/x86_64-linux-gnu/libpthread.so.0(+0x110e0)[0x7f9bd09b50e0] Jun 08 11:15:15 db2097 mysqld[20741]: /opt/wmf-mariadb101/bin/mysqld(adler32_z+0x2ab)[0x5645f0cf093b] Jun 08 11:15:15 db2097 mysqld[20741]: /opt/wmf-mariadb101/bin/mysqld(+0x9a45d8)[0x5645f0c0a5d8] Jun 08 11:15:16 db2097 mysqld[20741]: /opt/wmf-mariadb101/bin/mysqld(+0x99549b)[0x5645f0bfb49b] Jun 08 11:15:16 db2097 mysqld[20741]: /opt/wmf-mariadb101/bin/mysqld(+0x99d54f)[0x5645f0c0354f] Jun 08 11:15:16 db2097 mysqld[20741]: /opt/wmf-mariadb101/bin/mysqld(+0x99dfb5)[0x5645f0c03fb5] Jun 08 11:15:16 db2097 mysqld[20741]: /lib/x86_64-linux-gnu/libpthread.so.0(+0x74a4)[0x7f9bd09ab4a4] Jun 08 11:15:17 db2097 mysqld[20741]: /lib/x86_64-linux-gnu/libc.so.6(clone+0x3f)[0x7f9bcf14ad0f]
Ending up in a restart by systemd:
Jun 08 11:15:33 db2097 systemd[1]: Stopped mariadb database server. Jun 08 11:15:33 db2097 systemd[1]: Starting mariadb database server...