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https://issues.apache.org/jira/browse/HDFS-7344?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrew Wang resolved HDFS-7344.
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Resolution: Done
Resolving since the required subtasks for this umbrella seem to be complete.
> [umbrella] Erasure Coding worker and support in DataNode
> --------------------------------------------------------
>
> Key: HDFS-7344
> URL: https://issues.apache.org/jira/browse/HDFS-7344
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: datanode
> Reporter: Kai Zheng
> Assignee: Li Bo
> Attachments: ECWorker-design-v2.pdf, hdfs-ec-datanode.0108.zip,
> hdfs-ec-datanode.0108.zip, HDFS ECWorker Design.pdf
>
>
> According to HDFS-7285 and the design, this handles DataNode side extension
> and related support for Erasure Coding. More specifically, it implements
> {{ECWorker}}, which reconstructs lost blocks (in striping layout).
> It generally needs to restore BlockGroup and schema information from coding
> commands from NameNode or other entities, and construct specific coding work
> to execute. The required block reader, writer, either local or remote,
> encoder and decoder, will be implemented separately as sub-tasks.
> This JIRA will track all the linked sub-tasks, and is responsible for general
> discussions and integration for ECWorker. It won't resolve until all the
> related tasks are done.
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