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https://issues.apache.org/jira/browse/HDFS-7369?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Zhe Zhang updated HDFS-7369:
----------------------------
Description:
This JIRA updates NameNode to handle background / offline recovery of erasure
coded blocks. It includes 2 parts:
# Extend {{UnderReplicatedBlocks}} to recognize EC blocks and insert them to
appropriate priority levels.
# Update {{ReplicationMonitor}} to distinguish block codec tasks and send a new
DataNode command.
was:{{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.
> 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
>
> This JIRA updates NameNode to handle background / offline recovery of erasure
> coded blocks. It includes 2 parts:
> # Extend {{UnderReplicatedBlocks}} to recognize EC blocks and insert them to
> appropriate priority levels.
> # Update {{ReplicationMonitor}} to distinguish block codec tasks and send a
> new DataNode command.
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