After revert the snapshot 'prepare_ha_nova', pacemaker got a split brain

Bug #1466903 reported by Dennis Dmitriev
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
Fuel for OpenStack
Invalid
Medium
Fuel QA Team

Bug Description

Reproduced on CI: http://jenkins-product.srt.mirantis.net:8080/view/6.1_swarm/job/6.1.system_test.ubuntu.thread_5/160/ ; snapshot prepared in test 'prepare_ha_nova' , issue appeared in test 'ha_nova_destroy_controllers'

        Scenario:
            1. Create cluster (Ubuntu/IBP , Nova-network/flatDHCP)
            2. Add 3 nodes with controller roles
            3. Add 2 nodes with compute roles
            4. Deploy the cluster
            5. Make snapshot
            6. Revert the snapshot
            7. Monitor pacemaker status on primary controller for the next 10-20 minutes.

Expected results: After reverting, pacemaker status is not changed.

Actual result: On primary controller (node-1 in the attached snapshot), 1-2 minutes after reverting the snapshot, pacemaker lost connection to the other controllers and stopped all resources on the primary controller: http://paste.openstack.org/show/304670/

That failed the test "Destroy two controllers and check pacemaker status is correct" with error http://paste.openstack.org/show/304679/, when pacemaker was re-assembling rabbitmq cluster.

5 minutes later, pacemaker on the node-1 came back: http://paste.openstack.org/show/304671/

Can be related to https://bugs.launchpad.net/fuel/+bug/1458828 .

Tags: area-qa
Revision history for this message
Dennis Dmitriev (ddmitriev) wrote :
Changed in fuel:
status: New → Confirmed
Changed in fuel:
importance: Undecided → Medium
Changed in fuel:
assignee: MOS QA Team (mos-qa) → Fuel QA Team (fuel-qa)
Changed in fuel:
milestone: 7.0 → 8.0
Dmitry Pyzhov (dpyzhov)
tags: added: area-qa
Revision history for this message
Tatyanka (tatyana-leontovich) wrote :

move to 9.0 according to we do not fix medium issues in 8.0 anymore

Revision history for this message
Tatyanka (tatyana-leontovich) wrote :

actually move to invalid according to we do not have cases for nova anymmore

Changed in fuel:
status: Confirmed → Invalid
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