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https://issues.apache.org/jira/browse/NIFI-4938?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16387794#comment-16387794
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ASF GitHub Bot commented on NIFI-4938:
--------------------------------------

GitHub user Himanshu-it opened a pull request:

    https://github.com/apache/nifi/pull/2514

    NIFI-4938 Upgraded org.eclipse.paho.client.mqttv3 dependency version …

    Off line buffering for mqtt messages will now be supported with the version 
of paho client being updated to 1.2.0 from 1.0.2 .


You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/Himanshu-it/nifi 
NIFI-4938-Offline-mqtt-message-buffering-support-for-mqtt-processors-with-QoS1-and-Qos2

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/nifi/pull/2514.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 #2514
    
----
commit 49f1410c7bf61edfe9a9fb19f566743590f50636
Author: himanshu <hmdcisin@...>
Date:   2018-03-06T13:38:50Z

    NIFI-4938 Upgraded org.eclipse.paho.client.mqttv3 dependency version to 
1.2.0

----


> Offline buffering is not supported by paho client version 1.0.2 used in mqtt 
> processors.
> ----------------------------------------------------------------------------------------
>
>                 Key: NIFI-4938
>                 URL: https://issues.apache.org/jira/browse/NIFI-4938
>             Project: Apache NiFi
>          Issue Type: Improvement
>            Reporter: Himanshu Mishra
>            Priority: Major
>
> Off line buffering is not supported by paho client version 1.0.2 used in mqtt 
> processors which causes problem of "message loss" with QoS 1 and QoS 2 for 
> mqtt messages when the client connectivity is lost.
> The version 1.2.0 of paho client supports this off line buffering. Thus 
> addressing this issue.



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