Li Bo created HDFS-7679:
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Summary: EC encode/decode framework
Key: HDFS-7679
URL: https://issues.apache.org/jira/browse/HDFS-7679
Project: Hadoop HDFS
Issue Type: Sub-task
Reporter: Li Bo
EC tasks such as client striping write, encode replicated file to EC style,
transform block layout from contiguous to striping, reconstruct some corrupt
blocks, etc, have similar behavior. They all read data from client/BlockGroup,
encode/decode them, and write the results to some datanodes. So we can use a
unified framework to handle all these tasks. We can use different
BlockGroupReader, Coder(ECEncoder/ECDecoder) and BlockWriter to handle
different EC tasks.
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