[SOLR-12715] NodeAddedTrigger should support adding replicas to new nodes

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 7.5, 8.0
• Component/s: AutoScaling
• Assignee: Shalin Shekhar Mangar
• Reporter: Shalin Shekhar Mangar
• Created: 29/Aug/18 11:02
• Updated: 02/Oct/19 17:23
• Resolved: 04/Sep/18 11:37

Description

NodeAddedTrigger only moves replicas from other nodes to the newly added node(s). We should add support for addreplica operations via preferredOperation flag as is done in other triggers like MetricsTrigger and ScheduledTrigger.

The use-case is to add replica(s) of one or more collections to a new node automatically.