Bug 588500

Summary: if a node originates more then 512 messages in recovery it will sigabort (assert)
Product: Red Hat Enterprise Linux 5 Reporter: Steven Dake <sdake>
Component: openaisAssignee: Steven Dake <sdake>
Status: CLOSED ERRATA QA Contact: Cluster QE <mspqa-list>
Severity: urgent Docs Contact:
Priority: urgent    
Version: 5.5CC: bkahn, cluster-maint, edamato, jkortus, jwest
Target Milestone: rcKeywords: ZStream
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: openais-0.80.16-18.el5 Doc Type: Bug Fix
Doc Text:
In high-loss networks, an assert based on a constant value for the retransmit message queue size could have caused a some nodes to receive SIGABRT signals, and therefore terminate. This constant value has been increased to correspond to the maximum number of entries, thus resolving the issue.
Story Points: ---
Clone Of: Environment:
Last Closed: 2011-01-13 23:56:43 UTC Type: ---
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: 588627, 588898, 647290, 647291    
Attachments:
Description Flags
patch to fix the problem none

Description Steven Dake 2010-05-03 20:09:07 UTC
Description of problem:
The queue length is not long enough for really high loss networks resulting in sigabort.  Instead of 512 entries, it should be the max entries allowed which is 16384 entries.

Version-Release number of selected component (if applicable):
openais-0.80.6

How reproducible:
100%

Steps to Reproduce:
1. create 95% loss in multicast packets
2. start 8 node cpgverify operation
3. kill 1 node
  
Actual results:
sigabort of some nodes

Expected results:
no sigabort

Additional info:

Comment 1 Steven Dake 2010-05-03 20:12:23 UTC
Created attachment 411114 [details]
patch to fix the problem

Comment 12 Douglas Silas 2011-01-11 23:16:46 UTC
    Technical note added. If any revisions are required, please edit the "Technical Notes" field
    accordingly. All revisions will be proofread by the Engineering Content Services team.
    
    New Contents:
In high-loss networks, an assert based on a constant value for the retransmit message queue size could have caused a some nodes to receive SIGABRT signals, and therefore terminate. This constant value has been increased to correspond to the maximum number of entries, thus resolving the issue.

Comment 14 errata-xmlrpc 2011-01-13 23:56:43 UTC
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on therefore solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHBA-2011-0100.html