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Posted to issues@nifi.apache.org by "Shawn Weeks (Jira)" <ji...@apache.org> on 2022/05/16 13:59:00 UTC

[jira] [Commented] (NIFI-9559) Zookeeper Client Can't Reconnect - Session timeout has elapsed while SUSPENDED

    [ https://issues.apache.org/jira/browse/NIFI-9559?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17537558#comment-17537558 ] 

Shawn Weeks commented on NIFI-9559:
-----------------------------------

It appears that the upgrade to curator 5.2.1 in NiFi 1.16.1 doesn't resolve the underlying issue. It just changes the exception to a session expired message instead. I've attached the exception I see now.

> 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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