app-admin/metalog-2 with default /etc/metalog.conf fails to compress logs after rotation because this directive: postrotate_cmd = "/usr/sbin/metalog-postrotate-compress.sh" which instead should read: postrotate_cmd = "/sbin/metalog-postrotate-compress.sh" accordingly to installed files. Reproducible: Always
there is no postrotate_cmd in default metalog.conf