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From Gergely Novák (JIRA) <j...@apache.org>
Subject [jira] [Assigned] (HDFS-11034) Provide a command line tool to clear decommissioned DataNode information from the NameNode without restarting.
Date Thu, 21 Sep 2017 09:20:00 GMT

     [ https://issues.apache.org/jira/browse/HDFS-11034?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Gergely Novák reassigned HDFS-11034:
------------------------------------

    Assignee:     (was: Gergely Novák)

> Provide a command line tool to clear decommissioned DataNode information from the NameNode
without restarting.
> --------------------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-11034
>                 URL: https://issues.apache.org/jira/browse/HDFS-11034
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: namenode
>            Reporter: Chris Nauroth
>
> Information about decommissioned DataNodes remains tracked in the NameNode for the entire
NameNode process lifetime.  Currently, the only way to clear this information is to restart
the NameNode.  This issue proposes to add a way to clear this information online, without
requiring a process restart.



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