hadoop-hdfs-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Bharath Mundlapudi (JIRA)" <j...@apache.org>
Subject [jira] Created: (HDFS-1061) Memory footprint optimization for INodeFile object.
Date Mon, 22 Mar 2010 22:41:29 GMT
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
            Priority: Minor
             Fix For: 0.22.0

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.

This message is automatically generated by JIRA.
You can reply to this email to add a comment to the issue online.

View raw message