[Gluster-users] CentOS Freeze with GlusterFS Error

[chamara samarakoon]

HI All,

Thank You for valuable feedback , I will test the suggested solutions, and
update the thread.

Regards,
Chamara

On Tue, Jan 20, 2015 at 4:17 PM, Deepak Shetty <dpkshetty at gmail.com> wrote:

> In addition, I would also like to add that i do suspect (just my hunch)
> that it could be related to multipath.
> If you can try without multipath and if it doesn't re-create, i think that
> would be a good data point for kernel/OS vendor to debug further.
>
> my 2 cents again :)
>
> thanx,
> deepak
>
>
> On Tue, Jan 20, 2015 at 2:32 PM, Niels de Vos <ndevos at redhat.com> wrote:
>
>> On Tue, Jan 20, 2015 at 11:55:40AM +0530, Deepak Shetty wrote:
>> > What does "Controller" mean, the openstack controller node or somethign
>> > else (like HBA ) ?
>> > You picture says its SAN but the text says multi-path mount.. SAN would
>> > mean block devices, so I am assuming you have redundant block devices on
>> > the compute host, mkfs'ing it and then creating bricks for gluster ?
>> >
>> >
>> > The stack trace looks like you hit a kernel bug and glusterfsd happens
>> to
>> > be running on the CPU at the time... my 2 cents
>>
>> That definitely is a kernel issue. You should contact your OS support
>> vendor about this.
>>
>> The bits you copy/pasted are not sufficient to see what caused it. The
>> glusterfsd process is just a casualty of the kernel issue, and it is not
>> likely this can be fixed in Gluster. I suspect you need a kernel
>> patch/update.
>>
>> Niels
>>
>> >
>> > thanx,
>> > deepak
>> >
>> > On Tue, Jan 20, 2015 at 11:29 AM, chamara samarakoon <
>> chthsa123 at gmail.com>
>> > wrote:
>> >
>> > > Hi All,
>> > >
>> > >
>> > > We have setup Openstack cloud as below. And the
>> "/va/lib/nova/instances"
>> > > is a Gluster volume.
>> > >
>> > > CentOS - 6.5
>> > > Kernel -  2.6.32-431.29.2.el6.x86_64
>> > > GlusterFS - glusterfs 3.5.2 built on Jul 31 2014 18:47:54
>> > > OpenStack - RDO using Packstack
>> > >
>> > >
>> > >
>> > >
>> > > ​
>> > >
>> > >
>> > > Recently Controller node freezes with following error (Which required
>> hard
>> > > reboot), as a result Gluster volumes on compute node can not reach the
>> > > controller and due to that all the instances on compute nodes  become
>> to
>> > > read-only status  which causes to restart all instances.
>> > >
>> > >
>> > >
>> > >
>> > > *BUG: scheduling while atomic : glusterfsd/42725/0xffffffff*
>> > > *BUG: unable to handle kernel paging request at 0000000038a60d0a8*
>> > > *IP: [<fffffffff81058e5d>] task_rq_lock+0x4d/0xa0*
>> > > *PGD 1065525067 PUD 0*
>> > > *Oops: 0000 [#1] SMP*
>> > > *last sysfs file :
>> > >
>> /sys/device/pci0000:80/0000:80:02.0/0000:86:00.0/host2/port-2:0/end_device-2:0/target2:0:0/2:0:0:1/state*
>> > > *CPU 0*
>> > > *Modules linked in : xtconntrack iptable_filter ip_tables ipt_REDIRECT
>> > > fuse ipv openvswitch vxlan iptable_mangle *
>> > >
>> > > Please advice on above incident , also feedback on the Openstack +
>> > > GlusterFS setup is appreciated.
>> > >
>> > > Thank You,
>> > > Chamara
>> > >
>> > >
>> > > _______________________________________________
>> > > Gluster-users mailing list
>> > > Gluster-users at gluster.org
>> > > http://www.gluster.org/mailman/listinfo/gluster-users
>> > >
>>
>>
>>
>> > _______________________________________________
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>>
>>
>


-- 
chthsa
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