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From "Arpit Agarwal (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-10359) Allow trigger block report from all datanodes
Date Tue, 03 May 2016 15:33:13 GMT

    [ https://issues.apache.org/jira/browse/HDFS-10359?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15268894#comment-15268894
] 

Arpit Agarwal commented on HDFS-10359:
--------------------------------------

I agree with [~linyiqun]. This could bring down the NameNode or at least make it very busy
for a while. Not in favor of adding it.

> Allow trigger block report from all datanodes
> ---------------------------------------------
>
>                 Key: HDFS-10359
>                 URL: https://issues.apache.org/jira/browse/HDFS-10359
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: datanode
>    Affects Versions: 2.7.0, 2.6.1
>            Reporter: Tao Jie
>
> Since we have HDFS-7278 allows trigger block report from one certain datanode. It would
be helpful to add a option to this command to trigger block report from all datanodes.
> Command maybe like this:
> *hdfs dfsadmin -triggerBlockReport \[-incremental\] <datanode_host:ipc_port|all>*



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