Hi Kashif,
That's interesting. I would have expected only 1 Argus request from a CE for each job submitted.
Regards,
Andrew.
________________________________________
From: Kashif Mohammad [[log in to unmask]]
Sent: Friday, May 16, 2014 4:59 PM
To: [log in to unmask]
Subject: Re: ARGUS problem
Hi Chris
I have analysed pepd access log of one hour and found that on average it is receiving 60-200 requests per minute and only around 5% requests are coming from glexec. I am surprised by the high number of requests from CE's considering that we have only 1500 job slots.
Did you see this kind of behaviour?
I will try to look into CE's log to as well.
Thanks
Kashif
> -----Original Message-----
> From: Testbed Support for GridPP member institutes [mailto:TB-
> [log in to unmask]] On Behalf Of Chris Brew
> Sent: 16 May 2014 15:28
> To: [log in to unmask]
> Subject: Re: ARGUS problem
>
> Hi,
>
> Installing a second Argus and pointing our ArcCEs at that fixed the problem
> for a while. It was running fine handling those until I wanted to rebuild the
> first which was still having problems doing the mappings for gLexec. When I
> switched that over to the new server if fell over in a heap.
>
> So I've switched the ArcCEs back over to the original (but reinstalled) Argus
> and they are working fine but the second box is now mostly failing to map for
> gLexec - if a few service restarts and maybe reboots doesn't fix that I'll try to
> reinstall (VMs and puppet for teh win) and see if a fresh Argus server can
> handle the gLexec load.
>
> Yours,
> Chris.
>
> On 16/05/2014 10:01, "Kashif Mohammad"
> <[log in to unmask]<mailto:[log in to unmask]
> C.UK>> wrote:
>
> Hi
>
> Our Argus server is behaving strangely in last few days. We never had any
> issue with Argus server since beginning and the last time we updated emi
> packages were more than a month ago. Every few hour it just refuses to
> entertain any request for mapping and requests times out. In between it
> works perfectly ok. I have already applied most of the workaround
> mentioned in
>
> https://twiki.cern.ch/twiki/bin/view/EGEE/ArgusEMIDeployment#Performa
> nce_issue_with_Argus_PEP
>
> I have applied fallowing workarounds
> Disabled caching mechanism in /etc/argus/pepd/pepd.ini Increased default
> memory for java to 1GB in /etc/sysconfig/argus-pepd
>
> restarted services and rebooted as well.
>
> We are running argus server on a VM with 4GB RAM and 2 cpu. It is serving
> around 1500 job slots. Ganglia plots are not showing any thing intresting.
>
> I remember that few other sites had same kind of issue, I will be interested
> to know that how you solved this problem.
>
> Thanks
> Kashif
>
>
> --
> Scanned by iCritical.
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Scanned by iCritical.
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