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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