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https://issues.apache.org/jira/browse/KUDU-326?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15861857#comment-15861857
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Todd Lipcon commented on KUDU-326:
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KUDU-1415 implemented part of this for the Java client. We should expose those
same stats in the C++ client and also see if there are other useful ones that
we shoudl additionally expose
> Add statistics to client Scanners
> ---------------------------------
>
> Key: KUDU-326
> URL: https://issues.apache.org/jira/browse/KUDU-326
> Project: Kudu
> Issue Type: Improvement
> Components: client
> Affects Versions: M4
> Reporter: Todd Lipcon
> Labels: impala
>
> Would be nice to be able to get back some stats from a Scanner object. In
> particular:
> - number of localhost round trips, remote host round trips
> - bytes transferred local, bytes transferred remote
> - propagate counters from the server side (we have some
> CFileIterator::IOStatistics stuff which we don't really bubble up anywhere)
> This would be especially nice to expose into MR and Impala as counters to see
> if you're going over the network vs getting the expected locality.
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