[Gluster-users] CentOS Freeze with GlusterFS Error

[Deepak Shetty]

Just trying to understand the setup better....

So you create the bricks on controller node and have the gluster volume
present there ?
Do you use the mpathXX devices as bricks ? Whats the brick type (LV or dir)
?

On Tue, Jan 20, 2015 at 12:11 PM, chamara samarakoon <chthsa123 at gmail.com>
wrote:

> HI Deepak,
>
>
> Yes, it is  Openstack controller and SAN is configured for redundancy
> through multi-path.
>
> Regards,
> Chamara
>
>
> On Tue, Jan 20, 2015 at 11:55 AM, Deepak Shetty <dpkshetty at gmail.com>
> 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
>>
>> 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
>>>
>>
>>
>
>
> --
> chthsa
>
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