[NIFI-7389] Missing heartbeat counts to disconnect a node in cluster should be configurable

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.11.4
• Fix Version/s: 1.12.0
• Component/s: Configuration, Core Framework
• Labels: cluster heartbeat
• Assignee: Sushil Kumar
• Reporter: Sushil Kumar
• Created: 23/Apr/20 04:17
• Updated: 27/Apr/20 20:26
• Resolved: 27/Apr/20 20:26

Description

Number of heartbeats a node is required to miss before being disconnected from a nifi cluster is hardcoded as 8.

https://github.com/apache/nifi/blob/master/nifi-nar-bundles/nifi-framework-bundle/nifi-framework/nifi-framework-cluster/src/main/java/org/apache/nifi/cluster/coordination/heartbeat/AbstractHeartbeatMonitor.java#L162

 

This number should be user-configurable when they want to wait for more or less time before cluster disconnects a removed node from the cluster.