Could you take a statedump of the mount process when the hang happens
using steps at
https://github.com/gluster/glusterfs/blob/master/doc/debugging/statedump.md
Pranith
On 08/05/2014 02:10 AM, Mark Harrigan wrote:
Hi,
We've been using GlusterFS 3.4.0 on Debian 7 for around 11 months.
Every so often (once every 6 weeks or so) a server running the client
and nginx accessing the gluster storage would suffer a hard lockup of
nginx and require a reboot. This wasn't such a big deal as there were
several clients so there was never a loss to production.
However in the last few days we've seen a huge increase in these
lockups. Perhaps 2-3 times a day on multiple machines.
The bug appears to be very similar to
https://bugzilla.redhat.com/show_bug.cgi?id=764743 from Gluster 3.2
and the suggestion of first killing the Gluster process does allow a
restart of nginx without a reboot.
The only changes to our usage of late have been to stop a rebalance
process (as we're at the point where we need to add extra bricks) and
to breach 80% usage on the volume (Total volume size is 400TB).
Has anyone else had any experience of this bug re-emerging in Gluster 3.4?
Thanks,
Mark
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