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From "dhruba borthakur (JIRA)" <j...@apache.org>
Subject [jira] Created: (HDFS-684) Use HAR filesystem to merge parity files
Date Wed, 07 Oct 2009 23:31:31 GMT
Use HAR filesystem to merge parity files 

                 Key: HDFS-684
                 URL: https://issues.apache.org/jira/browse/HDFS-684
             Project: Hadoop HDFS
          Issue Type: Improvement
          Components: contrib/raid
            Reporter: dhruba borthakur

The HDFS raid implementation (HDFS-503) creates a parity file for every file that is RAIDed.
This puts additional burden on the memory requirements of the namenode. It will be  nice if
the parity files are combined together using the HadoopArchive (har) format. 

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