[Gluster-users] Possible to put some sort of qos/rate-limit on glusterfsd?

[Andrew Lau]

Quick update, I've successfully got glusterfs running with cgroups and I'm
very impressed with the results.

I'll write something up in the coming days - thanks again for the
suggestion.

On Mon, Feb 3, 2014 at 11:48 AM, Andrew Lau <andrew at andrewklau.com> wrote:

> Thanks for the suggestions - I'm seeing some promising results with
> cgroups.
>
> Just for confirmation - am I right in saying glusterd is just the
> management daemon? and glusterfsd is the actual process which does the
> checksums, replication, healing etc?
>
> On Mon, Feb 3, 2014 at 10:18 AM, Dan Mons <dmons at cuttingedge.com.au>wrote:
>
>> Try experimenting with performance.io-thread-count to see if that has an
>> impact.
>>
>> -Dan
>> ----------------
>> Dan Mons
>> Skunk Works
>> Cutting Edge
>> http://cuttingedge.com.au
>>
>>
>> On 2 February 2014 15:46, Andrew Lau <andrew at andrewklau.com> wrote:
>> > Hi all,
>> >
>> > Sadly my google skills aren't finding me any results - is there an
>> option to
>> > limit the CPU usage and/or the disk IO intensity of glusterfsd.
>> >
>> > Example scenario, oVirt + gluster on the same host when it comes to
>> adding
>> > an extra host + replicated brick the original host with the brick goes
>> crazy
>> > with 500% cpu as it copies just under 1TB of data across to the new
>> > replicated brick. Going crazy I mean everything else will hang, simple
>> "ls"
>> > command will take 30+ seconds.
>> >
>> > Limiting the network bandwidth to 200Mbps seems to solve this issue, I'm
>> > quite sure this is a CPU issue rather than IO so I was wondering if
>> there's
>> > any possibility to limit this down so the nic's itself don't have to get
>> > rate limited.
>> >
>> > Thanks,
>> > Andrew
>> >
>> > _______________________________________________
>> > Gluster-users mailing list
>> > Gluster-users at gluster.org
>> > http://supercolony.gluster.org/mailman/listinfo/gluster-users
>>
>
>
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