[Gluster-devel] Handling huge number of file read requests

Sebastien LELIEVRE slelievre at tbs-internet.com
Fri May 4 14:21:28 UTC 2007

I think Amrik is planning to use glusterfs, and describes the problem he
is experiencing with his current cluster (filesystem) configuration.

But I may have misunderstood


Anand Avati a écrit :
> Amrik,
>  can you send me your config files of both server and client?
> regards,
> avati
> On 5/4/07, Amrik Singh <asingh at ideeinc.com> wrote:
>> Hi Guys,
>> We are hoping that glusterfs would help us in the particular problem
>> that we are facing with our cluster. We have a visual search application
>> that runs on a cluster with around 300 processors. These compute nodes
>> run a search for images that are hosted on an NFS server. In certain
>> circumstances all these compute nodes are sending requests for query
>> images at extremely high rates (20-40 images per second). When 300 nodes
>> send 20-40 requests per second for these images, the NFS server just
>> can't cope with it and we start seeing a lot of retransmissions and a
>> very high wait time on the server as well as on the nodes. The images
>> are sized at around 2MB each.
>> With the current application we are not in a position where we can
>> quickly change the way things are being done so we are looking for a
>> file system that can handle this kind of situation. We tried glusterfs
>> with the default settings but we did not see any improvement. Is there a
>> way to tune glusterfs to handle this kind of situation.
>> I can provide more details about our setup as needed.
>> thanks
>> -- 
>> Amrik Singh
>> Idée Inc.
>> http://www.ideeinc.com

Sebastien LELIEVRE
slelievre at tbs-internet.com           Services to ISP
TBS-internet                   http://www.TBS-internet.com/

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