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From "Adam Holmberg (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-14311) Allow Token-Aware drivers for range scans
Date Tue, 24 Apr 2018 14:12:02 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-14311?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Adam Holmberg updated CASSANDRA-14311:
--------------------------------------
    Labels: client-impacting  (was: )

> 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
>            Priority: Major
>              Labels: client-impacting
>
> 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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