Controllers running out of disk space

[Jacek Nykis]

On 21/11/16 23:26, Menno Smits wrote:
> On 18 November 2016 at 05:07, Nate Finch <nate.finch at canonical.com> wrote:
> 
>> Resources are also stored in mongo and can be unlimited in size (not much
>> different than fat charms, except that at least they're only pulled down on
>> demand).
>>
>> We should let admins configure their max log size... our defaults may not
>> be what they like, but I bet that's not really the issue, since we cap them
>> smallish (the logs stored in mongo are capped, right?)
>>
>> Do we still store all logs from all machines on the controller?  Are they
>> capped?  That has been a problem in the past with large models.
>>
> 
> ​All logs for all agents for all models are stored in mongodb on the
> controller. They are pruned every 5 minutes to limit the space used by
> logs. Logs older than 3 days are always removed. The logs stored for all
> models is limited to 4GB with logs being removed fairly so that logs for a
> busy model don't cause logs for a quiet model to be prematurely removed.
> 
> The 3 day and 4GB limits are currently fixed but have been implemented in
> such a way to allow them to become configuration options without too much
> fuss.
> 
> - Menno

Hi Menno,

Do you know if log storage in mongodb needs to be enable in any way?

I can see that my juju 2.0.1 controller still stores logs on disk
without compression:
/var/log/juju$ ls -lh logsink*
-rw------- 1 syslog syslog 300M Oct 11 07:15
logsink-2016-10-11T07-15-12.443.log
-rw------- 1 syslog syslog 300M Nov 9 08:24
logsink-2016-11-09T08-24-35.019.log
-rw------- 1 syslog syslog 287M Nov 22 09:36 logsink.log

I think it's https://pad.lv/1494661

-- 
Regards,
Jacek


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