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From "stack (Resolved) (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HBASE-1012) [performance] Try doctoring a dfsclient so it shortcircuits hdfs when blocks are local
Date Fri, 24 Feb 2012 19:13:48 GMT

     [ https://issues.apache.org/jira/browse/HBASE-1012?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

stack resolved HBASE-1012.
--------------------------

    Resolution: Duplicate

This is done, available in hdfs.
                
> [performance] Try doctoring a dfsclient so it shortcircuits hdfs when blocks are local
> --------------------------------------------------------------------------------------
>
>                 Key: HBASE-1012
>                 URL: https://issues.apache.org/jira/browse/HBASE-1012
>             Project: HBase
>          Issue Type: Task
>          Components: performance
>            Reporter: stack
>
> Ning Li up on list has stated that getting blocks using hdfs though the block is local
takes almost the same amount of time as accesing the block over the network.  See if can do
something smarter when the data is known to be local short-circuiting hdfs if we can in a
subclass of DFSClient (George Porter suggestion).

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