Hi,

We've got some database servers running MariaDB 10.1.22, and are having issues with logrotate. Specifically, after it runs, it leaves a 0 byte file and continues writing log data to mysqld.log.1

Manually running logrotate in verbose mode shows this error from mysqladmin when it tries to run -flush_logs:

/usr/bin/mysqladmin: flush failed; error: 'Unknown error'
error: error running non-shared postrotate script for /var/log/mysqld.log of '/var/log/mysqld.log '
set default create context

Has anyone seen this before? It doesn't look like a permissions error - the logs are created fine if you run systemctl restart mariadb.

Thanks,

~Matt

Matthew
Senior Systems Administrator, IT Services
University of Bristol