[sles-beta] SLES12 RC1Question concerning EMPTY_PRE_POST_CLEANUP="yes"

[Arvin Schnell]

On Fri, Aug 08, 2014 at 09:14:42AM +0000, urs.frey at post.ch wrote:
> Hi
> When using SLES12 with btrfs I can see in /etc/snapper/configs/root the parameter EMPTY_PRE_POST_CLEANUP="yes" enabled.
> 
> I am googling, but can not find when, after which time these empty pre-post snapshots get cleaned from my server.
> I can only learn that there are three algorithms for cleanup in the cron job of snapper
> Number, Timeline, empty-pre-post

The snapper manpage mentions that the cleanup algorithms are
executed in a daily cron-job. When the daily cron-job is executed
depends on the cron configuration.

Also, per default the cleanup algorithms only delete snapshots
which are at least 30 minutes old.

So on average empty pre-post snapshots are deleted after half a
day, but it can take upto one day and 30 minutes.

As you already wrote in a reply to my previous mail the snapshots
are deleted after some time so everything looks OK.

Regards,
  Arvin

-- 
Arvin Schnell, <aschnell at suse.de>
Senior Software Engineer, Research & Development
SUSE LINUX Products GmbH, GF: Jeff Hawn, Jennifer Guild, Felix Imendörffer, HRB 16746 (AG Nürnberg)
Maxfeldstraße 5
90409 Nürnberg
Germany