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From "Gary Helmling (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (HBASE-3256) Coprocessors: Coprocessor host and observer for HMaster
Date Tue, 21 Dec 2010 20:47:03 GMT

     [ https://issues.apache.org/jira/browse/HBASE-3256?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Gary Helmling resolved HBASE-3256.
----------------------------------

      Resolution: Fixed
    Hadoop Flags: [Reviewed]

Committed to trunk.  Thanks for review jgray and apurtell!

> Coprocessors: Coprocessor host and observer for HMaster
> -------------------------------------------------------
>
>                 Key: HBASE-3256
>                 URL: https://issues.apache.org/jira/browse/HBASE-3256
>             Project: HBase
>          Issue Type: Sub-task
>            Reporter: Andrew Purtell
>            Assignee: Gary Helmling
>             Fix For: 0.92.0
>
>         Attachments: HBASE-3256_final.patch, HBASE-3256_initial.patch
>
>
> Implement a coprocessor host for HMaster. Hook observers into administrative operations
performed on tables: create, alter, assignment, load balance, and allow observers to modify
base master behavior. Support automatic loading of coprocessor implementation. 
> Consider refactoring the master coprocessor host and regionserver coprocessor host into
a common base class. 

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