Hi Alexander, on upgrade the server needs to restart and this fails: >From the log: invoke-rc.d: initscript mysql, action "start" failed.
There isn't much more to that in the log itself, the following might be interesting: $ systemctl status mysql Never the less there is more to be found in your logs, I saw: 2018-02-01T18:18:40.003189Z 0 [Note] InnoDB: Initializing buffer pool, total size = 128M, instances = 1, chunk size = 128M 2018-02-01T18:18:40.003294Z 0 [ERROR] InnoDB: mmap(137428992 bytes) failed; errno 12 2018-02-01T18:18:40.003334Z 0 [ERROR] InnoDB: Cannot allocate memory for the buffer pool 2018-02-01T18:18:40.003365Z 0 [ERROR] InnoDB: Plugin initialization aborted with error Generic error 2018-02-01T18:18:40.003456Z 0 [ERROR] Plugin 'InnoDB' init function returned error. 2018-02-01T18:18:40.003480Z 0 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed. 2018-02-01T18:18:40.003496Z 0 [ERROR] Failed to initialize builtin plugins. 2018-02-01T18:18:40.003511Z 0 [ERROR] Aborting That appears to me as an issue in the config vs the system size. Maybe also everything is allocated in other applications. You could try shrinking the buffer and retry the upgrade: #/etc/mysql/my.cnf innodb_buffer_pool_size = 1M In that it seems to me like [1] or actually bug 1312936 Could you look into the memory (and concurrent session config) if they could be reduced for the upgrade. You can afterwards still look if/what consumes your memory, resolve it and increase again. P.S. There also is this [ 1134.054457] type=1400 audit(1517509116.605:24): apparmor="DENIED" operation="open" parent=14364 profile="/usr/sbin/mysqld" name="/sys/devices/system/node/" pid=14365 comm="mysqld" requested_mask="r" denied_mask="r" fsuid=0 ouid=0 But I think it is unrelated (only needed for mysql configuring Numa behavior and fixed in later Ubuntu releases afaik) [1]: https://stackoverflow.com/questions/12114746/mysqld-service-stops- once-a-day-on-ec2-server/12683951#12683951 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1746786 Title: package mysql-server-5.7 5.7.21-0ubuntu0.16.04.1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mysql-5.7/+bug/1746786/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
