Github user markap14 commented on the issue:
https://github.com/apache/nifi/pull/701
@JPercivall that's a good catch! I updated the PR to address this. The
issue was that whenever there is only 1 node in the cluster, it is complaining
if we attempt to disconnect ANY node (even one that's already marked
disconnected). And since we'd received a heartbeat from a disconnected node, we
kept trying to disconnect it. Updated code and unit tests to verify. Thanks!
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