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https://issues.apache.org/jira/browse/NIFI-4169?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16136133#comment-16136133
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ASF GitHub Bot commented on NIFI-4169:
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GitHub user ijokarumawak opened a pull request:
https://github.com/apache/nifi/pull/2105
NIFI-4169: WIP PutWebSocket broadcast failure handling
**NOTE**
Submitting this PR just for code review purpose. Not ready to be merged yet.
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You can merge this pull request into a Git repository by running:
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Alternatively you can review and apply these changes as the patch at:
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To close this pull request, make a commit to your master/trunk branch
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This closes #2105
----
commit 8ca63ae87b0dfe6c44f9d1f0ef86167968df26cd
Author: Koji Kawamura <ijokaruma...@apache.org>
Date: 2017-08-21T22:47:23Z
Contribution from Y Wikander.
commit 2f0dfe1be9df4e59d3128924d386d382fb1850b1
Author: Koji Kawamura <ijokaruma...@apache.org>
Date: 2017-08-22T01:30:37Z
NIFI-4169: WIP PutWebSocket broadcast failure handling
----
> PutWebSocket processor with blank WebSocket session id attribute cannot
> transfer to failure queue
> -------------------------------------------------------------------------------------------------
>
> Key: NIFI-4169
> URL: https://issues.apache.org/jira/browse/NIFI-4169
> Project: Apache NiFi
> Issue Type: Improvement
> Components: Extensions
> Affects Versions: 1.3.0
> Reporter: Y Wikander
> Labels: patch
> Attachments:
> 0001-websocket-when-sendMessage-fails-under-blank-session.patch,
> 0002-websocket-PutWebSocket-enhance-broadcast-support.patch
>
>
> If a PutWebSocket processor is setup with a blank WebSocket session id
> attribute (see NIFI-3318; Send message from PutWebSocket to all connected
> clients) and it is not connected to a websocket server it will log the
> failure and mark the flowfile with Success (rather than Failure) -- and the
> data is effectively lost.
> If there are multiple connected clients, and some succeed and others fail,
> routing Failure back into the PutWebSocket could result in duplicate data to
> some clients.
> Other NiFi processors seem to err on the side of "at least once".
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