Use HAR filesystem to merge parity files
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Key: MAPREDUCE-1491
URL: https://issues.apache.org/jira/browse/MAPREDUCE-1491
Project: Hadoop Map/Reduce
Issue Type: Improvement
Reporter: Rodrigo Schmidt
Assignee: Rodrigo Schmidt
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.
This was (HDFS-684) before, but raid migrated to MAPREDUCE.
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