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List:       activemq-dev
Subject:    [jira] Commented: (AMQ-2334) getJMSRedelivered() incorrectly
From:       "Gary Tully (JIRA)" <jira () apache ! org>
Date:       2009-07-29 16:50:33
Message-ID: 545428149.1248886233832.JavaMail.jira () brutus
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    [ https://issues.apache.org/activemq/browse/AMQ-2334?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=53022#action_53022 \
] 

Gary Tully commented on AMQ-2334:
---------------------------------

that seems like a reasonable (and smart) solution but it may make sense as part of a \
broker plugin and/or destination filter so that it can be easily enabled or disabled. \
If redelivery semantics are vital then it can be enabled through config etc. From \
what I can see, any other solution will require storing the message twice which would \
kill performance.

> getJMSRedelivered() incorrectly returns false after a MasterSlave failover
> --------------------------------------------------------------------------
> 
> Key: AMQ-2334
> URL: https://issues.apache.org/activemq/browse/AMQ-2334
> Project: ActiveMQ
> Issue Type: Bug
> Components: Broker
> Affects Versions: 5.2.0
> Reporter: Kyle Anderson
> Attachments: SanRedeliver.java
> 
> Original Estimate: 3 hours
> Remaining Estimate: 3 hours
> 
> Shared master/slave setup, described here \
> http://activemq.apache.org/shared-file-system-master-slave.html Scenario:
> 1. Transacted consumer receives a message
> 2. Transacted consumer disconnects prior to committing
> 3. Transacted consumer #2 receives the same message.
> Normally consumer #2 sees that message as getJMSRedelivered() = true.  However, if \
> the broker fails and another takes over from the data dir between step 1 and 3, the \
> redelivery is set as false - even though a consumer has, in fact, seen the message \
> before.  See attached unit test.

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