From what I saw, it was mostly ovirt-engine and vdsm jobs pending on the queue while other slaves are idle.

we have over 40 slaves and we're about to add more, so I don't think that will be an issue and IMO 3 per job is not enough, especially if you get idle slaves.

We are thinking on a more dynamic approach of dynamic vm allocation on demand, so in the long run we'll have more control over it,

for now i'm monitoring the queue size and slaves on a regular basis [1], so if anything will get blocked too much time we'll act and adjust accordingly.

[1] http://graphite.phx.ovirt.org/dashboard/db/jenkins-monitoring

On Wed, May 11, 2016 at 1:10 PM, Sandro Bonazzola <sbonazzo@redhat.com> wrote:

On Tue, May 10, 2016 at 1:01 PM, Eyal Edri <eedri@redhat.com> wrote:

Shlomi,

Can you submit a patch to increase the limit to 6 for (i think all jobs are using the same yaml template) and we'll continue to monitor to queue and see if there is an improvement in the utilization of slaves?

Issue was that long lasting jobs caused queue to increase too much.

Example: a patch set rebased on master and merged will cause triggering of check-merged jobs, upgrade jobs, ...; running 6 instance of each of them will cause all other projects to be queued for a lot of time.

 

E.

On Tue, May 10, 2016 at 1:58 PM, David Caro <dcaro@redhat.com> wrote:

On 05/10 13:54, Eyal Edri wrote:
> Is there any reason we're limiting the amount of check patch & check merged
> jobs to run only 3 in parallel?
>

We had some mess in the past where enabling parallel runs did not really force
not using the same slave at the same time, I guess we never reenabled them.

> Each jobs runs in mock and on its own VM, anything presenting us from
> removing this limitation so we won't have idle slaves while other jobs are
> in the queue?
>
> We can increase it at least to a higher level if we won't one specific job
> to take over all slaves and starve other jobs, but i think ovirt-engine
> jobs are probably the biggest consumer of ci, so the threshold should be
> updated.

+1

>
> --
> Eyal Edri
> Associate Manager
> RHEV DevOps
> EMEA ENG Virtualization R&D
> Red Hat Israel
>
> phone: +972-9-7692018
> irc: eedri (on #tlv #rhev-dev #rhev-integ)

> _______________________________________________
> Infra mailing list
> Infra@ovirt.org
> http://lists.ovirt.org/mailman/listinfo/infra


--
David Caro

Red Hat S.L.
Continuous Integration Engineer - EMEA ENG Virtualization R&D

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Email: dcaro@redhat.com
IRC: dcaro|dcaroest@{freenode|oftc|redhat}
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--

Eyal Edri
Associate Manager

RHEV DevOps
EMEA ENG Virtualization R&D
Red Hat Israel

phone: +972-9-7692018
irc: eedri (on #tlv #rhev-dev #rhev-integ)

_______________________________________________
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Infra@ovirt.org
http://lists.ovirt.org/mailman/listinfo/infra

--

Sandro Bonazzola
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--

Eyal Edri
Associate Manager

RHEV DevOps
EMEA ENG Virtualization R&D
Red Hat Israel

phone: +972-9-7692018
irc: eedri (on #tlv #rhev-dev #rhev-integ)