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From "Mike Drob (JIRA)" <j...@apache.org>
Subject [jira] [Created] (ACCUMULO-1816) track metrics during scan session
Date Thu, 24 Oct 2013 21:52:02 GMT
Mike Drob created ACCUMULO-1816:
-----------------------------------

             Summary: track metrics during scan session
                 Key: ACCUMULO-1816
                 URL: https://issues.apache.org/jira/browse/ACCUMULO-1816
             Project: Accumulo
          Issue Type: Improvement
    Affects Versions: 1.5.0
            Reporter: Mike Drob


It would be useful to track and display certain metrics on scan sessions. Initially, I would
be interested in seeing bytes read, bytes returned, entries read, entries returned, and seeks
performed by a scan session.

This information should be available through the {{listscans}} command. Some of it is currently
on the monitor, but aggregated and not useful for debugging.

Providing that information may be a security concern because it suggests the existence of
rows that a user cannot see, but I think if we hide the command behind some permission then
operators can limit it to authorized folks.



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