[Buildbot-devel] Dealing with / preventing "no space left on device" scenarios

[Dustin J. Mitchell]

The horizon settings aren't the default because it would run the risk
of users losing data without realizing it.

There's a bug on file to purge unused directories -
http://trac.buildbot.net/ticket/2324

Dustin

On Mon, Mar 9, 2015 at 6:31 AM, Dan Kegel <dank at kegel.com> wrote:
> Related question: could/should buildbot have some kind of low disk space alert?
>
> On Mon, Mar 9, 2015 at 2:27 AM, Kevin Funk <kevin.funk at kdab.com> wrote:
>> Heya,
>>
>> one of our most recurring (read: boring) tasks at the moment with Buildbot is
>> to make sure both the master and our slaves have enough disk space to fulfill
>> their task.
>>
>> *Master*
>>
>> For the master, I finally solved this problem by doing
>>
>>   c['changeHorizon'] = 200
>>   c['buildHorizon'] = 100
>>   c['eventHorizon'] = 50
>>   c['logHorizon'] = 40
>>   c['buildCacheSize'] = 15
>>
>> in master.cfg, as suggested by http://docs.buildbot.net/current/manual/cfg-global.html#horizons
>>
>> Before that change, the master usually ran out of space because of the huge
>> amount of pickle and log files. Now I'm wondering why these values aren't the
>> default to begin with, to avoid having users run into this situation from the
>> start?
>>
>> *Slaves*
>>
>> For the slaves, it's more tricky (for us).
>>
>> Since the set of projects we work on is usually dynamic, builder are
>> frequently renamed/added/removed. Buildbot currently does not prune no-longer-
>> used builder dirs, which is a problem. We usually run out of disk space on the
>> slaves because of that.
>>
>> I didn't find a solution to that yet, is there?
>>
>> Thanks for your time
>>
>> --
>> Kevin Funk | kevin.funk at kdab.com | Software Engineer
>> KDAB (Deutschland) GmbH&Co KG, a KDAB Group company
>> Tel. Germany +49-30-521325470, Sweden (HQ) +46-563-540090
>> KDAB - Qt Experts - Platform-independent software solutions
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>
> ------------------------------------------------------------------------------
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> by Intel and developed in partnership with Slashdot Media, is your hub for all
> things parallel software development, from weekly thought leadership blogs to
> news, videos, case studies, tutorials and more. Take a look and join the
> conversation now. http://goparallel.sourceforge.net/
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