Shalin Shekhar Mangar created SOLR-11990:
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Summary: Make it possible to co-locate replicas of multiple
collections together in a node using policy
Key: SOLR-11990
URL: https://issues.apache.org/jira/browse/SOLR-11990
Project: Solr
Issue Type: Sub-task
Security Level: Public (Default Security Level. Issues are Public)
Components: AutoScaling, SolrCloud
Reporter: Shalin Shekhar Mangar
Fix For: master (8.0), 7.3
It is necessary to co-locate replicas of different collection together in a
node when cross-collection joins are performed. The policy rules framework
should support this use-case.
Example: Co-locate exactly 1 replica of collection A in each node where a
replica of collection B is present.
{code}
{"replica":1, "collection":"A", "shard":"#EACH", "withCollection":"B"}
{code}
This requires changing create collection, create shard and add replica APIs as
well because we want a replica of collection A to be created first before a
replica of collection B is created so that join queries etc are always possible.
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