[Pacemaker] pacemaker segfault

[Dejan Muhamedagic]

Hi,

On Mon, Dec 06, 2010 at 03:11:03PM +0300, ruslan usifov wrote:
> hello
> 
> I run pacemaker on ubuntu (Ubuntu 10.04.1 LTS) with corosync, i installed it
> from apt, and my pacemaker version is:
> 
> root at storage0:/var/log# dpkg -l | grep 'pacemaker'
> ii  pacemaker                           1.0.8+hg15494-2ubuntu2          HA
> cluster resource manager
> 
> 
> and have follow problem with pacemaker, with follow configration:
> root at storage0:/var/log# crm configure show
> node storage0
> node storage1
> primitive drbd_web ocf:linbit:drbd \
>         params drbd_resource="web" \
>         op monitor interval="10s" timeout="60s"
> primitive iscsi_ip ocf:heartbeat:IPaddr2 \
>         params ip="192.168.17.19" nic="eth1:1" cidr_netmask="24" \
>         op monitor interval="10s" \
>         meta target-role="Started"
> primitive iscsi_web_target ocf:heartbeat:iSCSITarget \
>         params iqn="iqn.2010-06.playrix.local:san.web" implementation="iet"
> \
>         op monitor interval="10s" timeout="30s" depth="0" \
>         meta target-role="Started"
> primitive iscsi_web_target_lun1 ocf:heartbeat:iSCSILogicalUnit \
>         params lun="1" path="/dev/drbd1"
> target_iqn="iqn.2010-06.playrix.local:san.web" implementation="iet" \
>         op monitor interval="10s" timeout="30s"
> group iscsi iscsi_ip iscsi_web_target iscsi_web_target_lun1
> ms ms_drbd_web drbd_web \
>         meta master-max="1" master-node-max="1" clone-max="2"
> clone-node-max="1" notify="true"
> colocation iscsi_on_drbd inf: ms_drbd_web:Master iscsi
> order iscsi_target_after_drbd inf: ms_drbd_web:promote iscsi_web_target
> order iscsi_target_lun_after_iscsi_target inf: iscsi_web_target
> iscsi_web_target_lun1
> property $id="cib-bootstrap-options" \
>         dc-version="1.0.8-042548a451fce8400660f6031f4da6f0223dd5dd" \
>         cluster-infrastructure="openais" \
>         expected-quorum-votes="2" \
>         stonith-enabled="false" \
>         no-quorum-policy="ignore"
> rsc_defaults $id="rsc-options" \
>         resource-stickiness="100"
> 
> 
> When i shutdown node storage1, node storage0 doesn't  accept Master drbd
> role, so output from crm_mon -1 lokks like this:
> ============
> Last updated: Mon Dec  6 15:04:18 2010
> Stack: openais
> Current DC: storage0 - partition WITHOUT quorum
> Version: 1.0.8-042548a451fce8400660f6031f4da6f0223dd5dd
> 2 Nodes configured, 2 expected votes
> 2 Resources configured.
> ============
> 
> Online: [ storage0 ]
> OFFLINE: [ storage1 ]
> 
>  Master/Slave Set: ms_drbd_web
>      Slaves: [ storage0 ]
>      Stopped: [ drbd_web:1 ]
>  Resource Group: iscsi
>      iscsi_ip   (ocf::heartbeat:IPaddr2):       Started storage0
>      iscsi_web_target   (ocf::heartbeat:iSCSITarget):   Started storage0
>      iscsi_web_target_lun1      (ocf::heartbeat:iSCSILogicalUnit):
> Started storage0 FAILED
> 
> Failed actions:
>     iscsi_web_target_lun1_start_0 (node=storage0, call=91, rc=1,
> status=complete): unknown error
> 
> 
> and when try to promote node got folow error:
> crm(live)resource# promote ms_drbd_web
> Error performing operation: Remote node did not respond
> 
> 
> and periodicaly in /var/log/messages, i see folow error:
> Dec  6 14:49:35 storage0 kernel: [ 5048.618562] pengine[8584]: segfault at 8
> ip b76ad094 sp bf8261d0 error 4 in libpengine.so.3.0.0[b76a2000+32000]
> Dec  6 14:50:37 storage0 kernel: [ 5111.505491] pengine[8681]: segfault at 0
> ip b7831ef3 sp bfd28b30 error 4 in libpengine.so.3.0.0[b7821000+32000]
> Dec  6 14:51:41 storage0 kernel: [ 5174.746349] pengine[8770]: segfault at 8
> ip b7751094 sp bfe1ccb0 error 4 in libpengine.so.3.0.0[b7746000+32000]
> 
> 
> 
> Why pacemacker doesn't switch role of live node to master? And why segfault
> happens?

Looks like you ran into problems because of segfaults. I suspect
that the segfault has been fixed in the meantime, but hard to
say unless you show the backtrace. Best to open a bugzilla with
your vendor.

Thanks,

Dejan


> Please help

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