[Systems] [Systems-logs] freedom.sugarlabs.org-Munin_alert

[Bernie Innocenti]

This is so annoying! We should either shrink the backups, or bump the threshold a bit so it doesn't fire every day.

My trick for finding out what takes up space in backups consists in exploiting the fact that du does not double-count blocks of hard-linked files. So you can go in /backup and do:

   du -sh hostname/*/var/lib

The first line will tell you the real size of /var/lib, and the following ones will tell you how much disk space it wastes *per day* on the backup server.

Usually logs being rotated and databases are the worst offenders. For databases, we shouldn't backup the raw files because there's a high chance of corruption. Instead, we should dump them daily and exclude the database files. This will save a lot of backup space too.


On 8/15/18 4:57 AM, Munin wrote:
> sugarlabs.org :: freedom.sugarlabs.org :: Disk usage in percent
>     WARNINGs: /backup is 92.16 (outside range [:92]).
>     OKs: /run/lock is 0.00, /sys/fs/cgroup is 0.00, /run is 9.89, /run/cgmanager/fs is 0.00, /dev/shm is 0.00, / is 65.84, /srv/socialhelp is 70.75, /var/lib/docker is 59.95, /var/lib/libvirt/images is 61.29.
>
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-- 
_ // Bernie Innocenti
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