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From Martin Desruisseaux <martin.desruisse...@geomatys.fr>
Subject Re: volunteering for ASF Jenkins farm service maintenance
Date Sun, 13 Apr 2014 20:07:20 GMT
Hello all

An other aspect which may be worth to explore for reducing resource
consumption is the way we use or configure Maven. A few weeks ago,
executing "mvn clean install deploy site" on Apache SIS with Maven 3.1
apparently trigged compilation of all source code 18 times. It may not
be Maven fault - I suspect some interactions between plugins, not all of
them developed at Apache. The situation seems to improve with Maven 3.2
(still need to confirm).

    Martin


Le 13/04/14 15:49, Dennis Lundberg a écrit :
> Hi all,
>
> Like Hervé I feel that the current state of Jenkins at the ASF is not
> good enough. The main problem, judging by the threads on builds@, are
> the Windows slaves. I see two major problems here:
>
> 1. The stability of the servers - they seem to go offline quite often,
> requiring manual restarts. Not sure where this problem lies though.
>
> 2. Misuse of the available resources. Just have a look at the load
> statistics for windows1:
> https://builds.apache.org/computer/windows1/load-statistics
> It currently has an avarage queue length of 12! With only 2 machines
> available (currently only 1) we need to limit the amount of work the
> can be put on them. Again I see two parts of the problem:
>
> 2.a Extremely long running builds, i.e. builds that take 10+ hours to complete.
> Example:
> https://builds.apache.org/job/river-qa-refactor-win6/buildTimeTrend
>
> 2.b Timer started jobs. If these slaves are to be used as *build*
> servers we cannot afford to allow builds to run when there have been
> no change in version control and no changes in upstream jobs.
> Example:
> https://builds.apache.org/job/ZooKeeper-trunk-WinVS2008/
>
> Note: the examples above were selected randomly from the currently
> running jobs. I'm sure there are lots of other projects doing similar
> things. It is not my intention to single out these projects, but to
> provide examples to back up the points I'm trying to make.


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