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https://issues.apache.org/jira/browse/NIFI-2045?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15340091#comment-15340091
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ASF GitHub Bot commented on NIFI-2045:
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GitHub user brosander opened a pull request:
https://github.com/apache/nifi/pull/548
NIFI-2045 - Removing mqtt message from queue after after session.comit()
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/brosander/nifi NIFI-2045
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/nifi/pull/548.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #548
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> 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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