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From "Anshum Gupta (JIRA)" <j...@apache.org>
Subject [jira] [Created] (SOLR-12810) Add an option to split a shard evenly w.r.t. the documents
Date Wed, 26 Sep 2018 18:27:02 GMT
Anshum Gupta created SOLR-12810:
-----------------------------------

             Summary: Add an option to split a shard evenly w.r.t. the documents
                 Key: SOLR-12810
                 URL: https://issues.apache.org/jira/browse/SOLR-12810
             Project: Solr
          Issue Type: New Feature
      Security Level: Public (Default Security Level. Issues are Public)
            Reporter: Anshum Gupta
            Assignee: Anshum Gupta


Split shard should have an option to create sub-shards on the basis of doc distribution i.e.
in a way that creates evenly distributed sub-shards.

Right now, the split assumes uniform distribution of data over the hash range, but that might
not always be true. Having a mechanism that makes a best effort for non-uniformly distributed
data would be a useful addition.



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