[Gluster-users] CentOS Freeze with GlusterFS Error

[Deepak Shetty]

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
>
>
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