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From "Hong Tang (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HDFS-1061) Memory footprint optimization for INodeFile object.
Date Thu, 15 Apr 2010 22:22:54 GMT

     [ https://issues.apache.org/jira/browse/HDFS-1061?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Hong Tang updated HDFS-1061:
----------------------------

    Status: Patch Available  (was: Open)

Retry hudson per Eli's suggestion.

> Memory footprint optimization for INodeFile object. 
> ----------------------------------------------------
>
>                 Key: HDFS-1061
>                 URL: https://issues.apache.org/jira/browse/HDFS-1061
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: name-node
>    Affects Versions: 0.22.0
>            Reporter: Bharath Mundlapudi
>            Assignee: Bharath Mundlapudi
>            Priority: Minor
>             Fix For: 0.22.0
>
>         Attachments: HDFS-1061.patch
>
>
> I am proposing a footprint optimization to merge blockReplication and preferredBlockSize
fields into one 'long header' field in INodeFile class. This saves 8 bytes per INodeFile object
on a 64 bit JVM. This memory optimization is transparent and changes are very minimal.

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