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Re: Change Request Koji



On Wed, 12 Nov 2008, Dennis Gilmore wrote:

> On Wednesday 12 November 2008 12:39:38 pm Mike McGrath wrote:
> > On Wed, 12 Nov 2008, Dennis Gilmore wrote:
> > > inside of phx  all machines are using koji2 for koji.fp.o  koji2 is the
> > > new 32 bit guest.  which is working fine except that it has 2gb ram.
> > > currently it is seeing a higher load than id like.
> > >
> > >  17:54:50 up 5 days, 22:11,  3 users,  load average: 8.69, 6.68, 5.06
> > >
> > >              total       used       free     shared    buffers     cached
> > > Mem:       2097328    2042660      54668          0       3868     704116
> > > -/+ buffers/cache:    1334676     762652
> > > Swap:      2096472     255224    1841248
> > >
> > > its not heavily swapping but swapping enough.  id like to change phx to
> > > point at koji1  when they are all back over to koji1  ill then take koji2
> > > down allocate it 4gb ram  koji1 has 8gb ram (and is 64 bit) then point
> > > everything inside phx back at koji2
> > >
> > > koji1 has not been rebuilt yet as we are still waiting on load balancing
> > > to be setup.  kojihub on koji1 is used only by people submitting builds.
> > > kojiweb and the builders are using koji2 as its hub.
> > >
> > >
> > > this change should have no visible user impact,  but will lower the load
> > > on koji2.
> >
> > This one's tricky, whats the harm if we don't do it?  Also whats the worst
> > impact this could have on the release?
> Right now koji is sluggish,  if we do nothing it continues to remain sluggish
> and may hold up composes waiting for a build to finish.  It could potentially
> use more ram than is available on xen2 and cause it to oom and bring down xen2
> and its guests.   xen2 has 3gb available so we should be ok.
>
> The first part of the change request will put things back to how they always
> were.  everything on koji1.  the second part will help koji2 perform better,
> i had meant to make the change before feature freeze and it crept up on me.
> when koji1 is rebuilt I plan to give it 4gb ram also.
>
>

Lets try to add more ram, if that doesn't work let us know and I'll +1
this.  We should at least make sure to get jesse's input on it, its the
release that would be most affected.

	-Mike


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