[torqueusers] cluster hangs

Jack Wilkinson jwilkinson at stoneeagle.com
Tue Sep 3 14:34:11 MDT 2013


I'm not sure if this is a maui or a torque issue, so I'm being slightly rude and sending this to both lists.

We're running maui 3.3-4 and torque 2.5.7-9 on CentOS 6.3.

Most of the time there's no problem.  qsub a set of submit files, they run and we get our output, but every now and then, they submit and get held so that qstat shows something like this...

[eob_merge at srvBatchHead01 ~]$ qstat
Job id                    Name             User            Time Use S Queue
------------------------- ---------------- --------------- -------- - -----
48267.srvbatchhead01       FS93130003_000   eob_merge              0 Q batch
48268.srvbatchhead01       FS93130003_001   eob_merge              0 Q batch
48269.srvbatchhead01       FS93130003_002   eob_merge              0 Q batch
48270.srvbatchhead01       FS93130003_003   eob_merge              0 Q batch
48271.srvbatchhead01       FS93130003_004   eob_merge              0 Q batch
48272.srvbatchhead01       FS93130006_000   eob_merge              0 Q batch
48273.srvbatchhead01       FS93130006_001   eob_merge              0 Q batch
48274.srvbatchhead01       FS93130006_002   eob_merge              0 Q batch
48275.srvbatchhead01       FS93130006_003   eob_merge              0 Q batch
48276.srvbatchhead01       FS93130006_004   eob_merge              0 Q batch

and they'll sit there forever like this.  We will restart all of the associated services: maui, pbs_server, pbs_mom and munge, yet, it doesn't help.  Finally we just reboot all of the boxes in the cluster (fortunately, it's a small number) and everything comes back up and runs.

I've proposed a weekly reboot of everything, but have been told that this can only be a stop gap measure and cannot be the final solution.

Does anyone have any clues?

Kind regards,

Jack Wilkinson
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P: 972.367-6622
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