[SOLR-4492] Please add support for Collection API CREATE method to evenly distribute leader roles among instances

• Type: New Feature
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 5.0, 6.0
• Component/s: SolrCloud
• Assignee: Erick Erickson
• Reporter: Tim Vaillancourt
• Created: 23/Feb/13 01:12
• Updated: 09/May/16 18:50
• Resolved: 17/Oct/14 16:54

Description

Currently in SolrCloud 4.1, a CREATE call to the Collection API will cause the server receiving the CREATE call to become the leader of all shards.

I would like to ask for the ability for the CREATE call to evenly distribute the leader role across all instances, ie: if I create 3 shards over 3 SOLR 4.1 instances, each instance/node would only be the leader of 1 shard.

This would be logically consistent with the way replicas are randomly distributed by this same call across instances/nodes.

Currently, this CREATE call will cause the server receiving the call to become the leader of 3 shards.

curl -v 'http://<HOST>:8983/solr/admin/collections?action=CREATE&name=test&numShards=3&replicationFactor=2&maxShardsPerNode=2'

PS: Thank you SOLR developers for your contributions!

Tim Vaillancourt

Issue Links

• is part of: SOLR-6491 Umbrella JIRA for managing the leader assignments
• is superceded by: SOLR-6491 Umbrella JIRA for managing the leader assignments