[SOLR-4905] Allow fromIndex parameter to JoinQParserPlugin to refer to a single-sharded collection that has a replica on all nodes

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 5.1, 6.0
• Component/s: SolrCloud
• Assignee: Timothy Potter
• Reporter: Philip K. Warren
• Created: 06/Jun/13 18:39
• Updated: 24/Mar/23 15:47
• Resolved: 05/Feb/15 22:06

Description

Using a non-SolrCloud setup, it is possible to perform cross core joins (http://wiki.apache.org/solr/Join). When testing with SolrCloud, however, neither the collection name, alias name (we have created aliases to SolrCloud collections), or the automatically generated core name (i.e. <collection>_shard1_replica1) work as the fromIndex parameter for a cross-core join.

Issue Links

• is related to: SOLR-4983 Problematic core naming by collection create API
• relates to: SOLR-6234 Scoring modes for query time join
• relates to: SOLR-16717 Joining collocated shards