[Lustre-discuss] How to determine which lustre clients are loading filesystem.

[Guy Coates]

On 08/07/10 19:03, Wojciech Turek wrote:
> Hi,
> 
> Our Lustre filesystem (Lustre 1.8.3, RHEL5) got recently very busy and
> users are noticing the slowness. The Lustre system consists of ~550
> clients and currently we have 50 different users running jobs. I can see
> that OSS servers have load oscillating between 100-300 and collectl
> shows that there are lots of I/O going on (mainly read). I would like to
> find a good method of finding out which Lustre clients are generating
> the I/O so I could pinpoint the high load to a particular jobs. I hope
> that some Lustre users can share their experience in that matter.

Try this script; (It is from Bernd Schubert). It will parse the
per-client  proc stats on the mds/oss into something nice and
humanly-readable. It is very useful.

Cheers,

Guy

-- 
Dr. Guy Coates,  Informatics System Group
The Wellcome Trust Sanger Institute, Hinxton, Cambridge, CB10 1HH, UK
Tel: +44 (0)1223 834244 x 6925
Fax: +44 (0)1223 496802



-- 
 The Wellcome Trust Sanger Institute is operated by Genome Research 
 Limited, a charity registered in England with number 1021457 and a 
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