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https://issues.apache.org/jira/browse/NIFI-16017?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Pierre Villard resolved NIFI-16017.
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Fix Version/s: 2.10.0
Resolution: Fixed
> Prevent nodes from (re)joining cluster when it has a Connector in a different
> Troubleshooting state than Cluster
> ----------------------------------------------------------------------------------------------------------------
>
> Key: NIFI-16017
> URL: https://issues.apache.org/jira/browse/NIFI-16017
> Project: Apache NiFi
> Issue Type: Task
> Components: Core Framework
> Reporter: Mark Payne
> Assignee: Mark Payne
> Priority: Major
> Fix For: 2.10.0
>
> Time Spent: 20m
> Remaining Estimate: 0h
>
> If a node wants to join or rejoin a cluster, but it has a Connector that is
> in Troubleshooting mode while the cluster is not (or vice versa) the node
> should be prohibited from joining. This check should happen at the very
> beginning of the negotiation, just like we do when checking if there would be
> data loss. This allows us to reject the node without changing any component
> states, etc.
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