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https://issues.apache.org/jira/browse/HDFS-7679?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kai Zheng updated HDFS-7679:
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Summary: Unifying erasure coder work, block reader and block writer across
client and DataNode (was: EC encode/decode framework)
> Unifying erasure coder work, block reader and block writer across client and
> DataNode
> -------------------------------------------------------------------------------------
>
> Key: HDFS-7679
> URL: https://issues.apache.org/jira/browse/HDFS-7679
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Li Bo
> Assignee: Li Bo
> Attachments: ECEncodeDecodeFramework.patch
>
>
> 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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