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https://issues.apache.org/jira/browse/NIFI-9559?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17488216#comment-17488216
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Shawn Weeks commented on NIFI-9559:
-----------------------------------
[~thenatog] I think I finally found the issue. See
https://issues.apache.org/jira/browse/CURATOR-561. This is what's going on, you
get into suspended state and curator never recovers.
> Zookeeper Client Can't Reconnect - Session timeout has elapsed while SUSPENDED
> ------------------------------------------------------------------------------
>
> Key: NIFI-9559
> URL: https://issues.apache.org/jira/browse/NIFI-9559
> Project: Apache NiFi
> Issue Type: Bug
> Reporter: Shawn Weeks
> Assignee: Nathan Gough
> Priority: Minor
> Attachments: nifi_and_zookeeper_logs.txt
>
>
> After a loss of connection to Zookeeper a NiFi node never successfully
> reconnects to the Zookeeper or the Cluster and instead returns errors about
> no Cluster Coordinator and a Session timeout has elapsed while SUSPENDED
> repeatedly until you restart NiFi.
> The error described is the same one at
> https://issues.apache.org/jira/browse/CURATOR-405 however that patch has been
> in NiFi for several versions now.
> NiFi version is 1.15.3 and Zookeeper 3.6.3
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