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

[Roland Rabben]

I still see a lot of memory usage after i disabled the performance/io-cache
translator on my clients.

Can this be a FUSE problem? Is there a way to limit the amount of cache or
memory FUSE uses?

If I need to upgrade, can I use 2.0.8 client with a 2.0.6 server?

Regards
Roland

2010/1/1 Roland Rabben <roland at jotta.no>

> I have seen 3.0 out there, but as you know, upgrading from 2.0.6 to 3.0
> requires downtime, and I want to make sure upgrading is painless before I go
> ahead and schedule a maintenance period.
>
> From what I have read in the mailing-list there are many reasons to upgrade
> from 2.0.6. I guess I 2.0.8 or 3.0 is next.
>
> I have now removed the performance/io-cache translator form my client
> config, and memory usage seems to be much lower. I need to test a day or two
> to verify that it doesn't grow out of control.
>
> Regards
> Roland
>
> 2010/1/1 Tejas N. Bhise <tejas at gluster.com>
>
> Thanks, Raghavendra.
>>
>> Roland,
>>
>> I would be very interested to know if you plan to move to a newer version
>> - that might solve some of your problems. If you do not plan to upgrade,
>> then I would also like to know if there are certain features in 2.0.6 which
>> you feel do not allow you to upgrade.
>> In the ideal case, we would like to have to support a fewer set of recent
>> versions hence the question :-).
>>
>> Regards,
>> Tejas.
>>
>> ----- Original Message -----
>> From: "Raghavendra G" <raghavendra at gluster.com>
>> To: "Roland Rabben" <roland at jotta.no>
>> Cc: "gluster-users" <gluster-users at gluster.org>
>> Sent: Friday, January 1, 2010 8:41:32 PM GMT +05:30 Chennai, Kolkata,
>> Mumbai, New Delhi
>> Subject: Re: [Gluster-users] Memory problems / leak in 2.0.6?
>>
>> 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
>> >
>> > _______________________________________________
>> > Gluster-users mailing list
>> > Gluster-users at gluster.org
>> > http://gluster.org/cgi-bin/mailman/listinfo/gluster-users
>> >
>> >
>>
>>
>> --
>> Raghavendra G
>>
>> _______________________________________________
>> Gluster-users mailing list
>> Gluster-users at gluster.org
>> http://gluster.org/cgi-bin/mailman/listinfo/gluster-users
>>
>
>
>
> --
> Roland Rabben
> Founder & CEO Jotta AS
> Cell: +47 90 85 85 39
> Phone: +47 21 04 29 00
> Email: roland at jotta.no
>



-- 
Roland Rabben
Founder & CEO Jotta AS
Cell: +47 90 85 85 39
Phone: +47 21 04 29 00
Email: roland at jotta.no