[Board] RE: [Box-Admins] What do I need to ask the SFC for on Wednesday?

[Frank Shearar]

On 25 September 2012 01:06, Levente Uzonyi <leves at elte.hu> wrote:
> On Mon, 24 Sep 2012, Ken Causey wrote:
>
>>> -------- Original Message --------
>>> Subject: Re: [Board] RE: [Box-Admins] What do I need to ask the SFC for
>>> on Wednesday?
>>> From: Chris Cunnington <smalltalktelevision at gmail.com>
>>> Date: Mon, September 24, 2012 2:29 pm
>>> To: Squeak Hosting Support <box-admins at lists.squeakfoundation.org>
>>>
>>>
>>> On 12-09-24 3:21 PM, Ken Causey wrote:
>>> >> >So the only thing the Gandi VPS would run for now would be Jenkins.
>>> >> > >> And maybe if we need another server we could get an additional one >>
>>> >> > instead of making this larger? I'm not that experienced with virtual >>
>>> >> > servers.
>>> > Then I'm confused why Chris is asking about this.  Isn't Squeak-ci his
>>> > baby?
>>> >
>>> I'm keen to dump my server and get a new one. That means I have to find a
>>> new home for the Jenkins server. I've been clear to the SOB that I want to
>>> make a transition 1 Nov. away from Server Beach. I've said such things in
>>> SOB minutes. So, I'm sort of forcing the issue. The question, though, is how
>>> much do we want to portion to the Gandi server. It's an open question.
>>
>>
>> So are you saying the first goal with the server is to run Jenkins and
>> the question is what else can we run there?  The answer depends entirely
>> on what additional resources are available.  If we can run everything
>> else there along with Jenkins, that sounds great to me, but perhaps
>> that's not reasonable.  Doesn't Jenkins involve a lot of usage spikes?
>
>
> During the weekend I installed Jenkins on our VPS at Hetzner. It uses about
> 170 MB memory and 50 MB disk space alone. I added the SqueakTrunk job from
> squeakci.org to it, which updates a Trunk image and runs the tests. That job
> creates about 25 MB of data each build (image file, changes file). Since the
> test fires up a CogVM with a Trunk image, additional 20 MB of memory is
> being used during the build.
>
> So even a single Share Gandi VPS could run Jenkins right now, but we only
> have 3 jobs yet (2 working atm). The goal is to have like 10+ of them. I
> expect every job to be run twice a day on average when automatic triggers
> are installed. So 10 jobs, 2 builds per job per day and 25 MB extra disk
> space per build means, 500 MB new data per day (the VM building jobs might
> require less space per build and we might not keep the artifacts of all
> builds, so this is more like an upper bound).

I'd like to see rather more than 10 jobs in the long run. 10 might
suffice for the base tests, but certain well-known packages also
deserve to have their tests run. These jobs would (almost certainly)
not be as burdensome as the main image tests, which have ~3500 tests
running. Note though that running tests on this new machine has one
major flaw: it's a single OS, and we actually want to support many
OSes. The solving of that problem is out of scope for this discussion;
I just wanted to mention that in the mid- to long-term I'd like to see
more than 10 jobs on the server.

frank

> I think at least 2 Shares (1 CPU, 1GB RAM, 20 Mbps guaranteed bandwidth) and
> 60 GB disk space (10 GB for the OS and environment + 100 days build history
> with artifacts) is enough for Jenkins.
>
>
> Levente
>
>>
>> Ken
>>
>>>
>>> Chris
>>
>>
>