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.
Best regards, -- -- Wojciech Turek
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