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https://issues.apache.org/jira/browse/NIFI-2045?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15345169#comment-15345169
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ASF subversion and git services commented on NIFI-2045:
-------------------------------------------------------

Commit 521ce63cc383fb457e2542374e89b575ea946cd1 in nifi's branch 
refs/heads/master from [[email protected]]
[ https://git-wip-us.apache.org/repos/asf?p=nifi.git;h=521ce63 ]

NIFI-2045 - Removing mqtt message from queue after session.comit()

This closes #548

Signed-off-by: jpercivall <[email protected]>


> ConsumeMQTT can lose a message if session commit fails
> ------------------------------------------------------
>
>                 Key: NIFI-2045
>                 URL: https://issues.apache.org/jira/browse/NIFI-2045
>             Project: Apache NiFi
>          Issue Type: Bug
>    Affects Versions: 1.0.0
>            Reporter: Bryan Rosander
>            Priority: Critical
>
> ConsumeMQTT removes the received message from the queue before committing the 
> session.  This means that if the session commit fails and the session rolls 
> back, the message will be lost.
> https://github.com/apache/nifi/blob/f47af1ce8336c9305916f00738976f3505b01b0b/nifi-nar-bundles/nifi-mqtt-bundle/nifi-mqtt-processors/src/main/java/org/apache/nifi/processors/mqtt/ConsumeMQTT.java#L292



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