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Bug 1006471 - unable to set transient node attributes on container resource's remote-node
Summary: unable to set transient node attributes on container resource's remote-node
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: pacemaker
Version: 7.0
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: rc
: ---
Assignee: David Vossel
QA Contact: Cluster QE
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2013-09-10 16:37 UTC by David Vossel
Modified: 2014-06-18 04:27 UTC (History)
6 users (show)

Fixed In Version: pacemaker-1.1.10-15.el7
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2014-06-13 09:56:52 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)

Description David Vossel 2013-09-10 16:37:50 UTC 
Description of problem:
Setting a transient node attribute on a container resource's remote-node fails and can potentially cause the crmd to crash.

This is important because transient node attributes are required for most multistate resources to work properly.

How reproducible:
100%

Steps to Reproduce:
1. create a container resource
2. attempt to set a transient attribute on the container resource's remote-node

example, set some dummy value on remote-node defined by a container resource called 'remote1'

crm_attribute -l reboot -N remote1 -n a_key -v a_value 

Actual results:

The key value pair is not set in the remote-node's transient attribute status section of the cib.

Expected results:

Transient attributes get set in the remote-nodes status section of the cib.

Additional info:

This issue has already been fixed upstream by the following patches.

https://github.com/davidvossel/pacemaker/commit/65ef2c7d8d931a149db3cf8be41225410a27e182
https://github.com/davidvossel/pacemaker/commit/f4be83732ba7c00ae89819ad3e8cb8c099e684d2
Comment 2 David Vossel 2013-09-25 14:55:12 UTC 
I am including the CTS test I developed upstream that caught this bug with this fix.
Comment 5 michal novacek 2014-03-28 10:59:27 UTC 
I have verified that the transcient attributes can be set on a cotainer resource with pacemaker-1.1.10-29.el7.x86_64.

----

# crm_attribute -N duck-03-node01 -n a_key -v a_value
Remote-nodes do not maintain permanent attributes, 'a_key=a_value' will be \
removed after duck-03-node01 reboots.

# pcs cluster cib
...
      <transient_attributes id="duck-03-node01">
        <instance_attributes id="status-duck-03-node01">
          <nvpair id="status-duck-03-node01-a_key" name="a_key" value="a_value"/>
        </instance_attributes>
      </transient_attributes>

duck-03# pcs status
Cluster name: STSRHTS30970
Last updated: Fri Mar 28 11:54:36 2014
Last change: Fri Mar 28 11:49:25 2014 via cibadmin on duck-03.cluster-qe.lab.eng.brq.redhat.com
Stack: corosync
Current DC: duck-03.cluster-qe.lab.eng.brq.redhat.com (1) - partition with quorum
Version: 1.1.10-29.el7-368c726
2 Nodes configured
4 Resources configured

Online: [ duck-03.cluster-qe.lab.eng.brq.redhat.com ]
Containers: [ duck-03-node01:R-duck-03-node01-lxc ]

Full list of resources:

 virt-fencing   (stonith:fence_ipmilan):        Started duck-03.cluster-qe.lab.eng.brq.redhat.com 
 R-duck-03-node01-lxc   (ocf::heartbeat:VirtualDomain): Started duck-03.cluster-qe.lab.eng.brq.redhat.com 
 le-dummy       (ocf::heartbeat:Dummy): Started duck-03-node01 

PCSD Status:
  duck-03.cluster-qe.lab.eng.brq.redhat.com: Online

Daemon Status:
  corosync: active/disabled
  pacemaker: active/disabled
  pcsd: active/enabled

# pcs resource show R-duck-03-node01-lxc le-dummy
 Resource: R-duck-03-node01-lxc (class=ocf provider=heartbeat type=VirtualDomain)
  Attributes: hypervisor=lxc:/// config=/var/lib/libvirt/lxc/duck-03-node01.xml force_stop=true 
  Meta Attrs: remote-node=duck-03-node01 
  Operations: start interval=0s timeout=90000 (R-duck-03-node01-lxc-start-timeout-90000)
              stop interval=0s timeout=90000 (R-duck-03-node01-lxc-stop-timeout-90000)
              monitor interval=10 timeout=30 (R-duck-03-node01-lxc-monitor-interval-10)
 Resource: le-dummy (class=ocf provider=heartbeat type=Dummy)
  Operations: start interval=0s timeout=20 (le-dummy-start-timeout-20)
              stop interval=0s timeout=20 (le-dummy-stop-timeout-20)

# crm_attribute -N duck-03-node01 -n a_key -v a_value
Remote-nodes do not maintain permanent attributes, 'a_key=a_value' will be \
removed after duck-03-node01 reboots.

# pcs cluster cib
...
      <transient_attributes id="duck-03-node01">
        <instance_attributes id="status-duck-03-node01">
          <nvpair id="status-duck-03-node01-a_key" name="a_key" value="a_value"/>
        </instance_attributes>
      </transient_attributes>
Comment 6 Ludek Smid 2014-06-13 09:56:52 UTC 
This request was resolved in Red Hat Enterprise Linux 7.0.

Contact your manager or support representative in case you have further questions about the request.
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