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From "Konstantin Shvachko (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HDFS-511) Redundant block searches in BlockManager.
Date Wed, 29 Jul 2009 00:31:15 GMT

     [ https://issues.apache.org/jira/browse/HDFS-511?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Konstantin Shvachko updated HDFS-511:
-------------------------------------

    Status: Patch Available  (was: Open)

> Redundant block searches in BlockManager.
> -----------------------------------------
>
>                 Key: HDFS-511
>                 URL: https://issues.apache.org/jira/browse/HDFS-511
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: name-node
>    Affects Versions: 0.21.0
>            Reporter: Konstantin Shvachko
>            Assignee: Konstantin Shvachko
>             Fix For: 0.21.0
>
>         Attachments: BlockManager.patch
>
>
> Some searches for a block in {{blocksMap}} are redundant and should be eliminated.
> {{BlockManager.addStoredBlock()}} contain unnecessary explicit and hidden (inside {{markBlockAsCorrupt()}})
calls of {{blocksMap.getStoredBlock()}}.

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