[Gluster-users] Memory problems / leak in 2.0.6?

Raghavendra G raghavendra at gluster.com
Fri Jan 1 07:11:32 PST 2010


Hi Roland,

Does doing "echo 3 > /proc/sys/vm/drop_caches" bring down the memory usage?

regards,
On Fri, Jan 1, 2010 at 2:47 PM, Roland Rabben <roland at jotta.no> wrote:

> Hi
> I am using Glusterfs 2.0.6 and I am experiencing some memory issues on the
> clients. The clients will grow their memory usage to several GB's over one
> or two days.
> This causes my app to run out of memroy and I need to restart my app and
> unmount the glusterfs volumes.
>
> I have tried adjusting the io-cache to max 512MB but this does not seem to
> have any effect.
> My clients use replicate and distribute.
>
> From my glusterfs.vol file:
>
> volume dfs
>    type cluster/distribute
>    option lookup-unhashed no
>    option min-free-disk 5%
>    subvolumes repl-000-001-01 repl-000-001-02 repl-000-001-03
> repl-000-001-04 repl-002-003-01 repl-002-003-02 repl-002-003-03
> repl-002-003-04
> end-volume
>
> # Enable write-behind to decrease write latency
> volume wb
>    type performance/write-behind
>    option flush-behind off
>    option cache-size 64MB
>    subvolumes dfs
> end-volume
>
> volume cache
>    type performance/io-cache
>    option cache-size 512MB
>    subvolumes wb
> end-volume
>
> Is this a memory leak or is there a way to limit the memory usage on the
> clients?
>
> I am running this on Ubuntu 9.04.
>
> Regards
>
>
> --
> Roland Rabben
> Founder & CEO Jotta AS
> Cell: +47 90 85 85 39
> Phone: +47 21 04 29 00
> Email: roland at jotta.no
>
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>
>


-- 
Raghavendra G


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