overcloud-controller-2 logrotate: ALERT exited abnormally with [1]

Issue

• The overcloud-controller-2 reports low disk space. We tried to collect the sosreport but disk usage increased, and following error appeared in /var/log/messages:

Jan 20 03:14:01 overcloud-controller-2 logrotate: ALERT exited abnormally with [1]

• It looks like logrotation is no longer working and disk space is never released:

[root@overcloud-controller-2 log]# du -sh * | grep G
11G     ceph
57G     cinder
3.7G    cluster
15G     httpd
4.1G    journal
26G     keystone
170G    messages                    <<<
65G     neutron                     <<<
16G     nova
1.9G    pcsd
78G     rabbitmq                    <<<
1.8G    secure
6.2G    swift

• We confirmed the logrotate is enabled:

[root@overcloud-controller-2 log]# ps -ef | egrep "logrotate|crond"
root        4505       1  0  2018 ?        00:25:38 /usr/sbin/crond -n
root      930425  893730  0 23:16 pts/0    00:00:00 grep -E --color=auto logrotate|crond

• We freed up the disk space usage for now, but we would like to confirm why the logrotate process stopped working.