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Posted to commits@cassandra.apache.org by "Avi Kivity (JIRA)" <ji...@apache.org> on 2018/03/13 20:27:00 UTC

[jira] [Created] (CASSANDRA-14311) Allow Token-Aware drivers for range scans

Avi Kivity created CASSANDRA-14311:
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             Summary: Allow Token-Aware drivers for range scans
                 Key: CASSANDRA-14311
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-14311
             Project: Cassandra
          Issue Type: Improvement
          Components: Coordination
            Reporter: Avi Kivity


Currently, range scans are not token aware. This means that an extra hop is needed for most requests. Since range scans are usually data intensive, this causes significant extra traffic.

 

Token awareness could be enabled by having the coordinator return the token for the next (still unread) row in the response, so the driver can select a next coordinator that owns this row.



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