[Gluster-users] hangs on accessing files on gluster mount (3.2.0)

Mohammed Junaid Ahmed junaid at gluster.com
Mon May 9 10:48:00 UTC 2011


Hi Tomasz,

Can you attach the logfiles, that will help. When does it happen - Does this happen just after the mount? What is the state of the server processes (are they busy or idle)?

Junaid 
----- Original Message -----
> From: "Tomasz Chmielewski" <mangoo at wpkg.org>
> To: "Gluster General Discussion List" <gluster-users at gluster.org>
> Sent: Monday, May 9, 2011 4:07:41 PM
> Subject: [Gluster-users] hangs on accessing files on gluster mount (3.2.0)
> I've deployed glusterfs 3.2.0 in distributed replica mode, but it is
> very problematic.
> 
> Every now and then, clients accessing certain files just hang.
> 
> For example:
> 
> md5sum /home/glusterfs/www/storage/article/2307/15064.jpeg
> 
> 
> The file is ~8k bytes big, so such operation should return almost
> immediately. It never returns.
> 
> 
> md5sum is just an example, but it causes huge problems to apache,
> which
> just hangs when trying to read such a file; number of processes grows,
> memory usage grows, until the server stops responding.
> 
> 
> The only way to "fix" this is to kill glusterfs and mount it again.
> 
> Is it a known issue? I'm seeing it on all gluster clients, so it
> doesn't
> seem to be any isolated issue.
> 
> It is a new 3.2.0 installation, not an upgrade.
> 
> 
> --
> Tomasz Chmielewski
> http://wpkg.org
> _______________________________________________
> Gluster-users mailing list
> Gluster-users at gluster.org
> http://gluster.org/cgi-bin/mailman/listinfo/gluster-users



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