[jira] [Created] (ACCUMULO-1816) track metrics during scan session

["Mike Drob (JIRA)" <ji...@apache.org>]

Mike Drob created ACCUMULO-1816:
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             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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