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https://issues.apache.org/jira/browse/HDFS-7369?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14315284#comment-14315284
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Zhe Zhang commented on HDFS-7369:
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With [~jingzhao]'s work on HDFS-7716, we can determine when an EC block group
is _at risk_, and if so, which blocks need recovery. This JIRA aims to extend
{{UnderReplicatedBlocks}} for this recovery logic.
> Erasure coding: distribute block recovery work to DataNode
> ----------------------------------------------------------
>
> Key: HDFS-7369
> URL: https://issues.apache.org/jira/browse/HDFS-7369
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Zhe Zhang
> Assignee: Zhe Zhang
>
> {{ErasureCodingBlocks}} on NameNode should insert parity blocks into
> {{UnderReplicatedBlocks}}. Then {{ReplicationMonitor}} should be extended to
> distinguish block encoding tasks and send a new DataNode command.
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