RaidNode should recreate outdated parity HARs
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Key: MAPREDUCE-2099
URL: https://issues.apache.org/jira/browse/MAPREDUCE-2099
Project: Hadoop Map/Reduce
Issue Type: Bug
Components: contrib/raid
Reporter: Ramkumar Vadali
Assignee: Ramkumar Vadali
After parity files are archived into a parity HAR, a change in the source file
does not cause the HAR to be recreated. Instead, individual parity files are
created for the modified files but the HAR is not touched. This causes
increased disk usage for parity data.
The parity HAR could be recreated if a certain percentage of files in the HAR
are determined to be outdated.
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