David Smiley created SOLR-17288: ----------------------------------- Summary: automatic preferredLeader Key: SOLR-17288 URL: https://issues.apache.org/jira/browse/SOLR-17288 Project: Solr Issue Type: Improvement Security Level: Public (Default Security Level. Issues are Public) Components: SolrCloud Reporter: David Smiley
I'd like to have the preferredLeader replica property be assigned automatically by Solr (if configured to). I propose that a [ReplicaPlacement|https://github.com/apache/solr/blob/branch_9_6/solr/core/src/java/org/apache/solr/cluster/placement/ReplicaPlacement.java#L35] decision, computed by a PlacementPlugin, include a "preferredLeader" boolean. Alternatively, we could alter PlacementPlugin.computePlacements method contract to further state that the returned order is significant -- that replicas are created in iteration order. Furthermore, the consumer (in Assign) would mark the first replica as preferredLeader. A default algorithm could simply choose a preferredLeader at random. -- This message was sent by Atlassian Jira (v8.20.10#820010) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@solr.apache.org For additional commands, e-mail: issues-h...@solr.apache.org