[SOLR-10769] Allow nodeAdded / nodeLost events to report multiple nodes in one event.

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 7.1
• Assignee: Andrzej Bialecki
• Reporter: Andrzej Bialecki
• Created: 30/May/17 15:15
• Updated: 17/Oct/17 11:03
• Resolved: 23/Aug/17 15:12

Description

I think we should consider collapsing multiple nodeAdded / nodeLost events, ie. generate a single event with information about multiple node names, if there were multiple changes to the cluster in a short time.

Processing a single event that records N changes could help us to react faster to cluster changes than processing N events each with a single change, and with waitFor in between.