HAR files used for RAID parity need to have configurable partfile size
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Key: HDFS-1175
URL: https://issues.apache.org/jira/browse/HDFS-1175
Project: Hadoop HDFS
Issue Type: Improvement
Components: contrib/raid
Affects Versions: 0.20.1
Reporter: Ramkumar Vadali
Priority: Minor
RAID parity files are merged into HAR archives periodically. This is required
to reduce the number of files that the NameNode has to track. The number of
files present in a HAR archive depends on the size of HAR part files - higher
the size, lower the number of files.
The size of HAR part files is configurable through the setting
har.partfile.size, but that is a global setting. This task introduces a new
setting specific to raid.har.partfile.size, that is used in-turn to set
har.partfile.size
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