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https://issues.apache.org/jira/browse/HDFS-17565?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chenyu Zheng updated HDFS-17565:
--------------------------------
    Summary: EC: dfs.datanode.ec.reconstruction.threads should support dynamic 
refresh  (was: EC: dfs.datanode.ec.reconstruction.threads should be 
configurable.)

> EC: dfs.datanode.ec.reconstruction.threads should support dynamic refresh
> -------------------------------------------------------------------------
>
>                 Key: HDFS-17565
>                 URL: https://issues.apache.org/jira/browse/HDFS-17565
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>            Reporter: Chenyu Zheng
>            Assignee: Chenyu Zheng
>            Priority: Major
>
> dfs.datanode.ec.reconstruction.threads should be configured, then we can 
> adjust the speed of ec block copy. Especially HDFS-17550 wanna 
> decommissioning DataNode by EC block reconstruction.



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