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https://issues.apache.org/jira/browse/CASSANDRA-7982?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14141686#comment-14141686
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Jay Patel commented on CASSANDRA-7982:
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Check out below thread for more info:
http://mail-archives.apache.org/mod_mbox/incubator-cassandra-user/201409.mbox/%3CCAAam9stDCosMVFdtxuziJY8ZP6=ndrsygzenpqpi6g0w_o4...@mail.gmail.com%3E
> 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
>
> Attachments: output1.txt
>
>
> 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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