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From "Jay Patel (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CASSANDRA-7982) Batch multiple range requests that are going to the same replica
Date Sat, 20 Sep 2014 02:21:33 GMT
Jay Patel created CASSANDRA-7982:
------------------------------------

             Summary:  Batch multiple range requests that are going to the same replica
                 Key: CASSANDRA-7982
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-7982
             Project: Cassandra
          Issue Type: Improvement
          Components: Core
            Reporter: Jay Patel
            Assignee: Jay Patel
             Fix For: 3.0


In case of VNode and secondary index query, coordinator sends multiple range requests to the
same replica. For example, in the attached tracing session (output1.txt), coordinator(192.168.51.22)
sends multiple requests to 192.168.51.25. Why can't we batch all the requests to the same
replica to avoid multiple round trips? I think this is not the issue with non-vnode cluster
where each node has one big range (+ replica ranges), instead of many small ranges.





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