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Bug 1078504

Summary: dlm-clone resources do not start on all nodes in 16-node cluster
Product: Red Hat Enterprise Linux 7 Reporter: Jaroslav Kortus <jkortus>
Component: pacemakerAssignee: David Vossel <dvossel>
Status: CLOSED CURRENTRELEASE QA Contact: Cluster QE <mspqa-list>
Severity: urgent Docs Contact:
Priority: urgent    
Version: 7.0CC: cluster-maint, dvossel, fdinitto, jherrman
Target Milestone: rc   
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: pacemaker-1.1.10-28.el7 Doc Type: Bug Fix
Doc Text:
Previously, the pacemaker utility was unable to start more than 10 instances of a cloned resource. As a consequence, clusters containing more than 10 nodes did not function correctly. This update fixes this bug and pacemaker can now properly start an unlimited number of instances of a cloned resource.
Story Points: ---
Clone Of:
: 1078954 (view as bug list) Environment:
Last Closed: 2014-06-13 13:11:09 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 1078954    

Description Jaroslav Kortus 2014-03-19 19:25:21 UTC
Description of problem:
dlm-clone resources do not start on all nodes in 16-node cluster.
In fact it only starts on two nodes, while the rest is showing the resource as stopped.

There are no error traces, failcounts on zero, enable/disable does not change anything.

Version-Release number of selected component (if applicable):
pacemaker-1.1.10-27.el7.x86_64

How reproducible:
always?

Steps to Reproduce:
1. setup dlm-cloned resources on 16-node cluster (standard QA setup test on 16 nodes)
2.
3.

Actual results:
only two nodes will have dlm-clone resource started (and the test fails)

Expected results:
all nodes have dlm-clone resource running

Additional info:

Comment 2 Jaroslav Kortus 2014-03-19 22:20:50 UTC
it seems to affect 11 and more node clusters, reducing the cluster to 10 live nodes resulted in expected setup (offlining the nodes via pcs cluster stop is enough).

Comment 3 David Vossel 2014-03-20 01:47:38 UTC
(In reply to Jaroslav Kortus from comment #2)
> it seems to affect 11 and more node clusters, reducing the cluster to 10
> live nodes resulted in expected setup (offlining the nodes via pcs cluster
> stop is enough).

good catch, it is related to having over 10 cloned instances.

I've created a patch upstream.

https://github.com/ClusterLabs/pacemaker/pull/465

Comment 8 Ludek Smid 2014-06-13 13:11:09 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.