Yago Riveiro created SOLR-4395:
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Summary: Create a mechanism to promote a replica to leader
Key: SOLR-4395
URL: https://issues.apache.org/jira/browse/SOLR-4395
Project: Solr
Issue Type: New Feature
Components: SolrCloud
Reporter: Yago Riveiro
Priority: Minor
In following scenario:
# Cluster compose by 2 nodes, node A and node B.
# Two collection:
- Collection 1 with the leader in a A and the replica in B and
- Collection 2 with the leader in B and the replica in A.
If a node A goes down, then the replica of collection 2 located in node A will
be promote to leader to respect the failover.
If the node A comes back online again, we have the scenario where all leader
are in the same node. This maybe can be have performance issues in indexing
throughput.
I think that can be desirable have a mechanism to promote one replica to leader
and recover the initial layout to leverage the physical machines, I/O CPU and
so on.
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