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From "Eric Newton (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (ACCUMULO-1143) unload of METADATA default_tablet with merging minor compactions can lockup
Date Wed, 11 Sep 2013 20:36:52 GMT

     [ https://issues.apache.org/jira/browse/ACCUMULO-1143?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Eric Newton resolved ACCUMULO-1143.
-----------------------------------

       Resolution: Fixed
    Fix Version/s:     (was: 1.6.0)
                   1.5.0
                   1.5.1

We fixed this twice: once by writing !METADATA delete entries to the root tablet in 1.5, and
by separating the root tablet to its own table in 1.6.
                
> unload of METADATA default_tablet with merging minor compactions can lockup
> ---------------------------------------------------------------------------
>
>                 Key: ACCUMULO-1143
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-1143
>             Project: Accumulo
>          Issue Type: Bug
>          Components: tserver
>    Affects Versions: 1.4.0
>            Reporter: Eric Newton
>            Assignee: Keith Turner
>            Priority: Critical
>              Labels: 15_qa_bug
>             Fix For: 1.5.1, 1.5.0
>
>
> Unloading the default tablet of the !METADATA table can result in a merging minor compaction.
 This results in a delete marker for the unneeded resulting file.  The delete marker goes
into the default tablet of !METADATA.  Which is offline while it performs its final minor
compaction.

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