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https://issues.apache.org/jira/browse/HDFS-8138?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14500595#comment-14500595
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Tsz Wo Nicholas Sze commented on HDFS-8138:
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CODEC is not a good name. How about changing it to ERASURE_CODE?
> Refine or extend EC command to support all cases
> ------------------------------------------------
>
> Key: HDFS-8138
> URL: https://issues.apache.org/jira/browse/HDFS-8138
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Kai Zheng
> Assignee: Vinayakumar B
>
> Currently a {{CODEC}} command is used to distribute stripping recovery
> command to DataNode. Discussed with [~umamaheswararao] and [~vinayrpet]
> further, we may need to refine or extend the command to support all cases, as
> we may distribute encoding and recovering tasks in both stripping and
> non-stripping cases. We may have two ways: 1) a single command but uses a
> flag in it to denote all the cases; 2) more commands.
> This will also consider how to layout, optimize or document relevant info
> contained in the the corresponding command related to the block group, so
> DataNode will be able to restore such info according to the concrete command.
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