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From "Zhihong Yu (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-6109) Improve RIT performances during assignment on large clusters
Date Wed, 30 May 2012 16:12:24 GMT

     [ https://issues.apache.org/jira/browse/HBASE-6109?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Zhihong Yu updated HBASE-6109:
------------------------------

    Attachment:     (was: 6049-v3.patch)
    
> Improve RIT performances during assignment on large clusters
> ------------------------------------------------------------
>
>                 Key: HBASE-6109
>                 URL: https://issues.apache.org/jira/browse/HBASE-6109
>             Project: HBase
>          Issue Type: Improvement
>          Components: master
>    Affects Versions: 0.96.0
>            Reporter: nkeywal
>            Assignee: nkeywal
>            Priority: Minor
>             Fix For: 0.96.0
>
>         Attachments: 6109.v19.patch, 6109.v7.patch
>
>
> The main points in this patch are:
>  - lowering the number of copy of the RIT list
>  - lowering the number of synchronization
>  - synchronizing on a region rather than on everything
> It also contains:
>  - some fixes around the RIT notification: the list was sometimes modified without a
corresponding 'notify'.
>  - some tests flakiness correction, actually unrelated to this patch.

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