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From "Alexander Georgiev (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HBASE-2819) hbck should have the ability to repair basic problems
Date Wed, 22 Sep 2010 20:40:36 GMT

     [ https://issues.apache.org/jira/browse/HBASE-2819?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Alexander Georgiev updated HBASE-2819:

    Attachment: HBASE-2819.patch

This patch is for the 0.89 branch, adding functionality to HBase FSCK (HBCK) to fix some of
the common issues that may arise while running HBase.
New features are:
  - Added -fix option, which tries to repair duplicate assignments or unassigned regions in
  - Check if META and ROOT are good before starting the usual check process.
  - Check table consistency - if there are missing or overlapping regions
  - Added option for quiet run, which doesn't print most of the information
  - Added printing of summary of the check - number of tables, per-table number of regions,
which tables are consistent and which are not and so on.

It uses a RPC call which is no longer available after the master rewrite, so it might take
some time to integrate. We are currently working on that.

> hbck should have the ability to repair basic problems
> -----------------------------------------------------
>                 Key: HBASE-2819
>                 URL: https://issues.apache.org/jira/browse/HBASE-2819
>             Project: HBase
>          Issue Type: New Feature
>          Components: scripts
>            Reporter: Todd Lipcon
>            Assignee: Alexander Georgiev
>         Attachments: HBASE-2819.patch
> Right now, the hbck utility can detect issues with region deployment but can't fix them.
> It should be able to handle basic things like closing one side of a double assignment,
re-adding something to META, etc.

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