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Bug 531833

Summary:	FailoverExchangeMethod getNextBrokerDetails() loops infinitely after a total cluster failure or if the inital connect node is down
Product:	Red Hat Enterprise MRG	Reporter:	Rajith Attapattu <rattapat+nobody>
Component:	qpid-java	Assignee:	Rajith Attapattu <rattapat+nobody>
Status:	CLOSED ERRATA	QA Contact:	Jiri Kolar <jkolar>
Severity:	medium	Docs Contact:
Priority:	high
Version:	1.1.7	CC:	jkolar
Target Milestone:	1.3
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:	If a total cluster failure occurred or if the initial node connected but failed before it could update the brokers list, the 'FailoverExchangeMethod' method looped infinitely. With this update, the JMS client throws a connection exception once it tries all known brokers.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2010-10-14 16:10:05 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:

Description Rajith Attapattu 2009-10-29 15:48:23 UTC

Description of problem:
If a total cluster failure happens or if the initial node connects but fails before it has got a chance to update the brokers list, the FailoverExchangeMethod will loop infinitely.

Version-Release number of selected component (if applicable):
1.1.7

How reproducible:
Always

Steps to Reproduce:
1. Start a JMS client with FailoverExchangeMethod as the failover_method
2. Wait till the JMS client is connected properly
3. Kill all brokers in the cluster
  
Actual results:
The JMS client goes into an infinite loop trying to get next broker details

Expected results:
The JMS client should throw a connection exception once it tries all known brokers

Additional info:

Comment 1 Rajith Attapattu 2009-10-29 15:49:15 UTC

This is tracked upstream via QPID-1956
A fix for this is committed at rev 817487 on qpid trunk.

Comment 2 Jiri Kolar 2010-03-26 17:44:28 UTC

Tested:
on qpid-java-client-0.5.751061-9.el5 bug appears
on qpid-java-client-0.7.916826-2 does not. It has been fixed

validated on RHEL  5.5 i386 / x86_64  and
 RHEL  4.8 i386 / x86_64 (cluster not possible but client behaviour reproducible) 

packages:

# rpm -qa | grep -E '(qpid|openais|rhm)' | sort -u

openais-0.80.6-16.el5
openais-debuginfo-0.80.6-8.el5_4.1
python-qpid-0.7.917557-4.el5
qpid-cpp-client-0.7.916826-2.el5
qpid-cpp-client-devel-0.7.916826-2.el5
qpid-cpp-client-devel-docs-0.7.916826-2.el5
qpid-cpp-client-ssl-0.7.916826-2.el5
qpid-cpp-mrg-debuginfo-0.7.916826-2.el5
qpid-cpp-server-0.7.916826-2.el5
qpid-cpp-server-cluster-0.7.916826-2.el5
qpid-cpp-server-devel-0.7.916826-2.el5
qpid-cpp-server-ssl-0.7.916826-2.el5
qpid-cpp-server-store-0.7.916826-2.el5
qpid-cpp-server-xml-0.7.916826-2.el5
qpid-dotnet-0.4.738274-2.el5
qpid-java-client-0.7.918215-1.el5
qpid-java-common-0.7.918215-1.el5
qpid-tests-0.7.917717-4.el5
qpid-tools-0.7.917557-4.el5

->VERIFIED

Comment 3 Martin Prpič 2010-10-10 10:19:03 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:
If a total cluster failure occurred or if the initial node connected but failed before it could update the brokers list, the 'FailoverExchangeMethod' method looped infinitely. With this update, the JMS client throws a connection exception once it tries all known brokers.

Comment 5 errata-xmlrpc 2010-10-14 16:10:05 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/RHSA-2010-0773.html