Re: NFS Issue

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On 06/04/2010 10:46 AM, Pittigher, Raymond - ES wrote:
> Started to see these messages in the log files. The slab cache uses all the memory then OOM. Memory leak?
>
> May 27 19:48:06 suoserv4 kernel: INFO: task nfsd:4562 blocked for more than 120 seconds.
> May 27 19:48:06 suoserv4 kernel: "echo 0>  /proc/sys/kernel/hung_task_timeout_secs" disable
>    

This is the heart of the message.  It took nfsd more than 120 real 
seconds to write to disk.  This is a bad thing, generally.

It indicates huge wait on i/o issues, not necessarily memory issues.  
Although if swap and the NFS share are on the same disk and or 
controller, it could happen to be related.

I would focus on resolving the disk i/o issue here.

Good Luck!
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