[Gluster-users] GlusterFS Lockup

[Pranith Kumar Karampuri]

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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