On 2017-10-20 01:56, Raoul Bhatia wrote:
On October 17, 2017 9:23:55 PM UTC, Michael Stowe
<[email protected]> wrote:
On 2017-10-17 14:01, Raoul Bhatia wrote:
Hi!
I use puppet for dynamic configuration management where clients
basically register with the BackupPC server for backup. I now face
the problem, that due to a config error/update/etc. a client might
be dropping out for a few days. This leads to BackupPC's host file
to be updated and BackupPC_nightly will clean the now unused files.
They only related option I found right now is changin
$Conf{BackupPCNightlyPeriod}:
How many days (runs) it takes BackupPC_nightly to traverse the
entire pool. Normally this is 1, which means every night it runs, it
does traverse the entire pool removing unused pool files.
Other valid values are 2, 4, 8, 16. This causes BackupPC_nightly to
traverse 1/2, 1/4, 1/8 or 1/16th of the pool each night, meaning it
takes 2, 4, 8 or 16 days to completely traverse the pool. The
advantage is that each night the running time of BackupPC_nightly is
reduced roughly in proportion, since the total job is split over
multiple days. The disadvantage is that unused pool files take
longer to get deleted, which will slightly increase disk usage.
Is there any other option to delay the cleanup that is caused due to
such misconfiguration?
Thanks, Raoul
Well, sure, you can always set the host to inactive, which as I
recall, will not only stop it from being backed up automatically but
suspend cleanup indefinitely.
You can also change the retention policies on a per-host basis, which
seems like it would be the sane thing to do, but I can't say I
completely understand your use case.
Rephrasing myself: I'd like a configurable grace period before the
nightly cleanup removes orphans from the pool.
My current use case stems from a weird configuration management module
I am using, but I can also imagine some benefit for other use cases as
well.
I can't say I understand the need to control the cleanup independently
of the retention. You either want to keep a backup or you don't, it
seems.
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