[Ocfs2-users] High memory usage

[Herbert van den Bergh]

Please post the output of: cat /proc/meminfo /proc/slabinfo

Thanks,
Herbert.

On 12/12/11 9:58 AM, Kushnir, Michael (NIH/NLM/LHC) [C] wrote:
>
> Good afternoon,
>
>  
>
> We just deployed our OCFS2 1.4 across 10 nodes. When we run a java
> process with lots of file creates and updates, I see the system RAM
> fill up and the system start swapping heavily.
>
>  
>
> I've tried to counter by running "sync; echo 3 >
> /proc/sys/vm/dropcaches" with practically no effect. I've also set
> swappiness to 0 using "echo 0 > /proc/sys/vm/swappiness". But neither
> helps. I see RAM usage increase until it is completely full.
>
>  
>
> Once I kill my process that is creating files, the resident memory
> that is used by that process is returned, but the other memory (held
> by whatever is mysteriously filling up my RAM, I think OCFS2) is not
> returned.
>
>  
>
> I am running RHEL 5.7. I've tried the stock RHEL kernel and UEK from
> Oracle. I've ruled out java memory leaks. I do not see the same
> problem in a system running the same process on a local file system.
> This makes me think it is OCFS2 causing my problem.
>
>  
>
> Please let me know if  I can tune the FS to make this stop.
>
>  
>
> Thanks,
>
> Michael
>
>
>
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