[jira] [Issue Comment Deleted] (NIFI-4169) PutWebSocket processor with blank WebSocket session id attribute cannot transfer to failure queue

["Y Wikander (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/NIFI-4169?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Y Wikander updated NIFI-4169:
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    Comment: was deleted

(was: [~ijokarumawak], [your|https://issues.apache.org/jira/browse/NIFI-4169?focusedCommentId=16087053&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-16087053] suggestion.
)

> 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
>            Priority: Critical
>              Labels: patch
>         Attachments: 0001-websocket-when-sendMessage-fails-under-blank-session.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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