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Yonik Seeley commented on SOLR-3755: ------------------------------------ We need to associate hash ranges with shards and allow overlapping shards (i.e. 1-10, 1-5,6-10) General Strategy for splitting w/ no service interruptions: - Bring up 2 new cores on the same node, covering the new hash ranges - Both cores should go into recovery mode (i.e. leader should start forwarding updates) - leader does a hard commit and splits the index - Smaller indexes are installed on the new cores - Overseer should create new replicas for new shards - Mark old shard as “retired” – some mechanism to shut it down (after there is an acceptable amount of coverage of the new shards via replicas) Future: allow splitting even with “custom” shards > shard splitting > --------------- > > Key: SOLR-3755 > URL: https://issues.apache.org/jira/browse/SOLR-3755 > Project: Solr > Issue Type: New Feature > Components: SolrCloud > Reporter: Yonik Seeley > > We can currently easily add replicas to handle increases in query volume, but > we should also add a way to add additional shards dynamically by splitting > existing shards. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org