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From "Christopher Tubbs (JIRA)" <j...@apache.org>
Subject [jira] [Created] (ACCUMULO-2413) Add robust tools to automatically fix common metadata problems
Date Wed, 26 Feb 2014 20:25:23 GMT
Christopher Tubbs created ACCUMULO-2413:
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             Summary: Add robust tools to automatically fix common metadata problems
                 Key: ACCUMULO-2413
                 URL: https://issues.apache.org/jira/browse/ACCUMULO-2413
             Project: Accumulo
          Issue Type: New Feature
            Reporter: Christopher Tubbs


There are some failure cases that can occur, which put the metadata tables in a corrupted
state. Under these circumstances, it'd be useful to have a robust tool for automatically correcting
these mistakes.

Historically, there have been relatively hidden options added to the CheckForMetadataProblems
class, which is an admin utility that is not part of the public API, for performing some of
these tasks. However, these tasks were not safe to use and never really explained to the user
what they did, and were dropped in ACCUMULO-2291.

A good tool would have a variety of options to cover the different situations which need to
be fixed and would include good documentation, describing the various repair options, explaining
the risks to the user, and prompting them to confirm, perhaps with the root password.



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