Mark Payne created NIFI-2360:
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Summary: Improve robustness of cluster when relying on embedded
zookeeper
Key: NIFI-2360
URL: https://issues.apache.org/jira/browse/NIFI-2360
Project: Apache NiFi
Issue Type: Bug
Components: Core Framework
Affects Versions: 1.0.0
Reporter: Mark Payne
Assignee: Mark Payne
Fix For: 1.0.0
I have a 3 node cluster running an embedded zookeeper. If 2 nodes disconnect, I
no longer have a ZooKeeper quorum. As a result, the third node is also
disconnected. If I had more nodes, they would also all be disconnected. As a
result, I also cannot then go to the cluster page to re-connect them, since
there is no cluster coordinator.
We should make this more robust, predominantly by not starting & stopping the
embedded zookeeper server when a node connects & disconnects from cluster but
instead just leave the embedded zookeeper server running, even when the node is
disconnected from the cluster.
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