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Bug 1646872 - [OSP] SBD cannot be used with bundles [rhel-7.6.z]
Summary: [OSP] SBD cannot be used with bundles [rhel-7.6.z]
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: pacemaker
Version: 7.6
Hardware: Unspecified
OS: Unspecified
urgent
urgent
Target Milestone: rc
: 7.6
Assignee: Ken Gaillot
QA Contact: Marian Krcmarik
URL:
Whiteboard:
Depends On: 1638593
Blocks:
TreeView+ depends on / blocked
 
Reported: 2018-11-06 08:08 UTC by Oneata Mircea Teodor
Modified: 2022-09-14 15:53 UTC (History)
11 users (show)

Fixed In Version: pacemaker-1.1.19-8.el7_6.1
Doc Type: Bug Fix
Doc Text:
Cause: When SBD is configured on the cluster nodes, Pacemaker Remote nodes (including guest nodes and bundle nodes) will compare the local SBD configuration and abort if not compatible. Consequence: Guest nodes and bundle nodes unnecessarily fail when SBD is used on the cluster nodes, since they use resource recovery rather than standard fencing mechanisms. Fix: Pacemaker Remote skips the SBD compatibility check when run on a guest node or bundle node. Result: Guest nodes and bundle nodes may be used in a cluster with SBD, without configuring SBD on the guest nodes or bundle nodes themselves.
Clone Of: 1638593
Environment:
Last Closed: 2018-11-27 01:21:58 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2018:3667 0 None None None 2018-11-27 01:22:11 UTC

Description Oneata Mircea Teodor 2018-11-06 08:08:48 UTC 
This bug has been copied from bug #1638593 and has been proposed to be backported to 7.6 z-stream (EUS).
Comment 2 Ken Gaillot 2018-11-06 15:37:19 UTC 
Fixed in upstream 1.1 branch by commit 4dae674
Comment 3 Ken Gaillot 2018-11-07 21:30:53 UTC 
QA: To reproduce, configure a cluster with a guest node and/or bundle, where all the cluster nodes use sbd for fencing. Configure a resource to run on the guest node and/or in the bundle that will require contacting the CIB or controller, such as galera, redis, or rabbitmq (or a modified Dummy resource that calls something like cibadmin -Q). Before the fix, the guest node and/or bundle instance will get restarted when the resource starts on it; after the fix, it will proceed normally.
Comment 5 Marian Krcmarik 2018-11-12 23:00:33 UTC 
I am going to switch to Verified even though I do not have clear knowledge of what to verify here and how to reproduce, If I configure watchdog with softdog and sbd and I set stonith-watchdog-timeout property then All the bundle resource are stopped on the setup with unfixed pacemaker, once I use fixed version of pacemaker it starts to work. I have no see any unneccessary restarts of bundles in any case though
Comment 7 errata-xmlrpc 2018-11-27 01:21:58 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2018:3667
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