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https://issues.apache.org/jira/browse/HDFS-8020?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14395093#comment-14395093
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Kai Zheng commented on HDFS-8020:
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Hi Zhe,
bq.Actually DNA_CODEC is sufficient because we can always deduct ...
I guess it may also work if we have explicit commands and let a command like
DNA_ECENCODE drive the interpreting of the command parameters, thinking about
we'll have at least 4 cases ?
bq.I think work on this JIRA should start after we have ECSchema class ...
Right. But we do have the class already (in the branch), or anything more other
than it did you mean?
> Erasure Coding: restore BlockGroup and schema info from stripping coding
> command
> --------------------------------------------------------------------------------
>
> Key: HDFS-8020
> URL: https://issues.apache.org/jira/browse/HDFS-8020
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Kai Zheng
> Assignee: Kai Sasaki
>
> As a task of HDFS-7344, to process *stripping* coding commands from NameNode
> or other scheduler services/tools, we need to first be able to restore
> BlockGroup and schema information in DataNode, which will be used to
> construct coding work.
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