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https://issues.apache.org/jira/browse/HDFS-16397?focusedWorklogId=729452&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-729452
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ASF GitHub Bot logged work on HDFS-16397:
-----------------------------------------

                Author: ASF GitHub Bot
            Created on: 18/Feb/22 06:04
            Start Date: 18/Feb/22 06:04
    Worklog Time Spent: 10m 
      Work Description: tomscut commented on pull request #3828:
URL: https://github.com/apache/hadoop/pull/3828#issuecomment-1043965231


   Hi @tasanuma @ayushtkn @jojochuang @Hexiaoqiao , could you please review 
this PR? Thanks.
   


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Issue Time Tracking
-------------------

    Worklog Id:     (was: 729452)
    Time Spent: 1h 20m  (was: 1h 10m)

> Reconfig slow disk parameters for datanode
> ------------------------------------------
>
>                 Key: HDFS-16397
>                 URL: https://issues.apache.org/jira/browse/HDFS-16397
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>            Reporter: tomscut
>            Assignee: tomscut
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 1h 20m
>  Remaining Estimate: 0h
>
> In large clusters, rolling restart datanodes takes long time. We can make 
> slow peers parameters and slow disks parameters in datanode reconfigurable to 
> facilitate cluster operation and maintenance.



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