Moving Jenkins master ASAP

[Robert Middleswarth]

On 08/07/2012 12:25 PM, Itamar Heim wrote:
> On 08/07/2012 07:20 PM, Robert Middleswarth wrote:
>> On 08/07/2012 11:47 AM, Karsten 'quaid' Wade wrote:
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>>> On 07/31/2012 07:44 AM, Karsten 'quaid' Wade wrote:
>>>> We need to pick a new hosting solution for jenkins.ovirt.org.
>>> Itamar gave us this more direct list of what we need for hosting:
>>>
>>> We currently have:
>>> - - Jenkins master
>>> - - Gerrit
>>> - - 2 fc17 jenkins slaves
>>> - - 2 rhel 6 jenkins slaves
>>>
>>> "For gerrit I'd like a quad core, 8-16 GB RAM with decent IO from 
>>> disk."
>>>
>>> "For jenkins master - quad core, 8-16GB RAM, a few disks for IO"
>> ovirt.info Jenkins is based on a pair of Dual quad core CPU's with 16G
>> of ram and non raided sata disks.  The master is centos 6.3 and the
>> slave is fedora 17.  Between the two they are handling all the same
>> build jobs as ovirt.org in about half the time.  The reason why is 2
>> fold.  1) the signal sata drive is much faster then the EC2 storage so
>> the IO waits are limited on ovirt.info comparied to ovirt.org. 2 My
>> master and slave are on the same gigabit network. So moving around files
>> are 10x to 100x faster then ovirt.org.
>>>
>>> "Jenkins slaves - depends on pricing i guess, but we need quite a few
>>> of these to run the jobs."
>>>
>>> Are minimum need is:
>>>
>>> * A new bare metal host for Jenkins master.
>>> * A new bare metal or VM host for Gerrit.
>>> * 4 VMs for Jenkins slaves
>> Ovirt.info tell me that a solid master with 16G of ram should be able to
>> run 6 jobs and still feed several slaves so you could drop the 2 RHEL
>> 6.x slaves and just need 2 slaves for Fedora 17 builds plus a VM to
>> replace the small Linode instance.
>>>
>>> I'm going to see what we can do with ~$150/mon, with the idea that we
>>> could replace the relatively small Linode instance we're spending
>>> ~$40/mon on currently.
>>>
>>> A crazy idea - should we move the master to jenkins.ovirt.info right
>>> away to get the performance boost, as a stop-gap until we get a
>>> dedicated host in a datacenter? (Just trying to make us not dependent
>>> on Robert's house as if it's a datacenter.)
>> I am open to this.  It is my home so there is no backup generator or isp
>> but my connection is 70/35M so it should be able to support jenkins
>> needs.  I have already given eedri root access to jenkins.ovirt.info
>> incase that is a question in anyone mind.
>
> a home based service for jenkins is a bit troubling for me.
> but maybe we can share some of the load - say, try to run on it some 
> jobs at patch level and provide feedback on gerrit?
That is doable.  I also have a friend who can put the 2 boxes in a DC 
for 80 USD a month.  If I could find raisers and a raid controller for 
the boxes that might also be an option.

-- 
Thanks
Robert Middleswarth
@rmiddle (twitter/IRC)