[NIFI-2196] Allow the flow to be seen even if there is no ZooKeeper quorum

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 1.0.0
• Component/s: Core Framework
• Assignee: Unassigned
• Reporter: Mark Payne
• Created: 07/Jul/16 21:35
• Updated: 13/Oct/16 13:05

Description

With 1.0.0, in order to view the flow, we have to replicate the request to get the flow across the cluster so that we can verify permissions, etc. If unable to connect to ZooKeeper (because of a network issue or a lack of ZK quorum), we cannot show the UI.

We can improve this by showing the local version of the flow in these cases. This won't show things like statistics, cluster info, etc. but can at least show the structure of the flow, based on the permissions that the node servicing the request believes are accurate.