deployment-ores-redis.deployment-prep.eqiad.wmflabs causes disks alarms:
Free space - all mounts on deployment-ores-redis is CRITICAL: CRITICAL: deployment-prep.deployment-ores-redis.diskspace._srv.byte_percentfree (<44.44%)
It has redis installed on the instance extended disk mounted on /srv. However the instance is a m1.small with 20GBytes disk and / already allocates 20GB leaving on 438MBytes for /srv:
$ df -h -t ext4 Filesystem Size Used Avail Use% Mounted on /dev/vda3 19G 2.2G 16G 13% / /dev/mapper/vd-second--local--disk 484M 438M 17M 97% /srv
There are two ways to solve it:
- Remove the extended disk mount and have redis data directly into / . Involves a bit of puppet work to remove the Mount['/srv'], then one will have to copy the data, unmount and move data to /
- migrate to a new instance using the flavor c1.m2.s80 which comes with 80 Gbytes of disk. Which probably involves more configuration to update the IP wherever it is used.