Erick Erickson created SOLR-5146:
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             Summary: Figure out what it would take for lazily-loaded cores to 
play nice with SolrCloud
                 Key: SOLR-5146
                 URL: https://issues.apache.org/jira/browse/SOLR-5146
             Project: Solr
          Issue Type: Improvement
    Affects Versions: 4.5, 5.0
            Reporter: Erick Erickson


The whole lazy-load core thing was implemented with non-SolrCloud use-cases in 
mind. There are several user-list threads that ask about using lazy cores with 
SolrCloud, especially in multi-tenant use-cases.

This is a marker JIRA to investigate what it would take to make lazy-load cores 
play nice with SolrCloud. It's especially interesting how this all works with 
shards, replicas, leader election, recovery, etc.

NOTE: This is pretty much totally unexplored territory. It may be that a few 
trivial modifications are all that's needed. OTOH, It may be that we'd have to 
rip apart SolrCloud to handle this case. Until someone dives into the code, we 
don't know.

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