Kai Zheng created HADOOP-11871:
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Summary: Improve RSRawErasureDecoder avoiding unnecessary
compuating and recovering
Key: HADOOP-11871
URL: https://issues.apache.org/jira/browse/HADOOP-11871
Project: Hadoop Common
Issue Type: Sub-task
Reporter: Kai Zheng
Assignee: Kai Zheng
As discussed in HADOOP-11847, due to and inherited from the limitation of
HDFS-RAID codes, {{RSErasureDecoder}} has to compute and recover unnecessarily
some units even they're not really erased, but just not to read.
This is to resolve the limiation and improve {{RSErasureDecoder}} for better
performance.
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