[Gluster-users] glusterfsd process thrashing CPU

[Pranith Kumar Karampuri]

On 11/18/2014 01:05 PM, Pranith Kumar Karampuri wrote:
>
> On 11/18/2014 12:32 PM, Lindsay Mathieson wrote:
>> 2 Node replicate setup,
>>
>> Everything has been stable for days untill I had occasion to reboot
>> one of the nodes. Since then (past hour) glusterfsd has been pegging
>> the CPU(s), utilization ranging from 1% to 1000% !
>>
>> On average its around 500%
>>
>> This is a vm server, so there are only 27 VM images for a total of
>> 800GB. Its an Intel E5-2620 (12 Cores) with 32GB ECC RAM
Sorry didn't see this one. I think this is happening because of 'diff' 
based self-heal which does full file checksums, that I believe is the 
root cause. Could you execute 'gluster volume set <volname> 
cluster.data-self-heal-algorithm full' to prevent this issue in future. 
But this option will be effective for the new self-heals that will be 
triggered after the execution of the command. The ongoing ones will 
still use the old mode of self-heal.

Pranith
>>
>> - What does glusterfsd do?
>>
>> - What can I do to fix this?
> Which version of glusterfs are you using? Do you have directories with 
> lots of files?
>
> Pranith
>>
>> thanks,
>>
>
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