On 07/13/2012 02:59 PM, James Kahn wrote:
Try 3.3.0 - 3.2.6 has issues with NFS in general (memory leaks, etc).
Upgrading to 3.3.0 would be quite a big adventure to me (production
site, lots of traffic etc.). But I guess it would be justified, if it
really fixes this bug.
The issue was reported earlier, but I don't see any references it was
fixed in 3.3.0:
Deadlock happens when writing a file big enough to fill the
filesystem cache and kernel is trying to flush it to free some
memory for glusterfsd which needs memory to commit some
filesystem blocks to free some memory for glusterfsd...
http://gluster.org/pipermail/gluster-users/2011-January/006477.html
https://bugzilla.redhat.com/show_bug.cgi?id=GLUSTER-2320
--
Tomasz Chmielewski
http://www.ptraveler.com
-----Original Message-----
From: Tomasz Chmielewski <[email protected]>
Date: Thursday, 12 July 2012 5:56 PM
To: Gluster General Discussion List <[email protected]>
Subject: [Gluster-users] NFS mounts with glusterd on localhost - reliable
or not?
Hi,
are NFS mounts made on a single server (i.e. where glusterd is running)
supposed to be stable (with gluster 3.2.6)?
I'm using the following line in /etc/fstab:
localhost:/sites /var/ftp/sites nfs _netdev,mountproto=tcp,nfsvers=3,bg 0
0
The problem is, after some time (~1-6 hours), I'm no longer able to
access this mount.
dmesg says:
[49609.832274] nfs: server localhost not responding, still trying
[49910.639351] nfs: server localhost not responding, still trying
[50211.446433] nfs: server localhost not responding, still trying
What's worse, whenever this happens, *all* other servers in the cluster
(it's a 10-server distributed volume) will destabilise - their load
average will grow, and eventually their gluster mount becomes
unresponsive, too (other servers use normal gluster mounts).
At this point, I have to kill all gluster processes, start glusterd
again, mount (on servers using gluster mount).
Is it expected behaviour with gluster and NFS mounts on localhost? Can
it be caused by some kind of deadlock? Any workarounds?
--
Tomasz Chmielewski
http://www.ptraveler.com
_______________________________________________
Gluster-users mailing list
[email protected]
http://gluster.org/cgi-bin/mailman/listinfo/gluster-users
_______________________________________________
Gluster-users mailing list
[email protected]
http://gluster.org/cgi-bin/mailman/listinfo/gluster-users
