[Gluster-users] 1/4 glusterfsd's runs amok; performance suffers;

Vijay Bellur vbellur at redhat.com
Sun Aug 12 06:37:11 UTC 2012


On 08/11/2012 10:16 PM, Harry Mangalam wrote:
>
>
> On Sat, Aug 11, 2012 at 9:41 AM, Brian Candler <B.Candler at pobox.com

>
>     Maybe worth trying an strace (strace -f -p <pid> 2>strace.out) on the
>     glusterfsd process, or whatever it is which is causing the high
>     load, during
>     such a burst, just for a few seconds. The output might give some clues.
>
>
> Good idea.  I'll watch and when it goes wacko and post the  filtered
> results.
>

It might also be useful to turn on volume profiling and capture IO 
statistics when the load is high. 'volume profile <volname> info' 
provides both cumulative and interval statistics (interval being the 
window between execution of two consecutive volume profile infos).

Thanks,
Vijay



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