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From "Sam Tunnicliffe (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CASSANDRA-10215) Reduce redundant secondary index selection lookups
Date Fri, 28 Aug 2015 09:17:45 GMT
Sam Tunnicliffe created CASSANDRA-10215:
-------------------------------------------

             Summary: Reduce redundant secondary index selection lookups
                 Key: CASSANDRA-10215
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-10215
             Project: Cassandra
          Issue Type: Improvement
            Reporter: Sam Tunnicliffe


Once an index has been identified as being the one that should be used for a given query,
it should be included as part of the {{ReadCommand}} so that it can be retrieved when needed
during execution. Currently we don't do this, meaning that the index selection process implemented
in {{SIM::getBestIndexFor}} is run multiple times on both the coordinator and each replica
when performing a range command.

This is also a pre-requisite of CASSANDRA-10214



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