It would appear as though the init script is creating the pid with root:root ownership, irrespective of memcached.conf's contents, yet still passes the -P during memecached's exec. When the -P option is added to the config, it results in this error as memcached tries to create a pid that already exists, and doesn't have permissions to overwrite.
It would appear as though the init script is creating the pid with root:root ownership, irrespective of memcached.conf's contents, yet still passes the -P during memecached's exec. When the -P option is added to the config, it results in this error as memcached tries to create a pid that already exists, and doesn't have permissions to overwrite.