[ 
https://issues.apache.org/jira/browse/HDFS-16294?focusedWorklogId=674201&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-674201
 ]

ASF GitHub Bot logged work on HDFS-16294:
-----------------------------------------

                Author: ASF GitHub Bot
            Created on: 02/Nov/21 21:51
            Start Date: 02/Nov/21 21:51
    Worklog Time Spent: 10m 
      Work Description: jianghuazhu opened a new pull request #3605:
URL: https://github.com/apache/hadoop/pull/3605


   ### Description of PR
   As early as when HDFS-2907 was resolved, 
SimulatedFSDataset#CONFIG_PROPERTY_SIMULATED was removed. Replaced by: 
SimulatedFSDataset#Factory and DFSConfigKyes#DFS_DATANODE_FSDATASET_FACTORY_KEY.
   However, the introduction to CONFIG_PROPERTY_SIMULATED is still retained in 
the DataNode.
   Details: HDFS-16294
   
   ### How was this patch tested?
   This pr mainly solves the changes related to annotations, and the test 
pressure is not great.
   


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

    Worklog Id:     (was: 674201)
    Time Spent: 1.5h  (was: 1h 20m)

> Remove invalid DataNode#CONFIG_PROPERTY_SIMULATED
> -------------------------------------------------
>
>                 Key: HDFS-16294
>                 URL: https://issues.apache.org/jira/browse/HDFS-16294
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: datanode
>    Affects Versions: 2.9.2
>            Reporter: JiangHua Zhu
>            Assignee: JiangHua Zhu
>            Priority: Major
>              Labels: pull-request-available
>         Attachments: screenshot.png
>
>          Time Spent: 1.5h
>  Remaining Estimate: 0h
>
> As early as when HDFS-2907 was resolved, 
> SimulatedFSDataset#CONFIG_PROPERTY_SIMULATED was removed. Replaced by: 
> SimulatedFSDataset#Factory and 
> DFSConfigKyes#DFS_DATANODE_FSDATASET_FACTORY_KEY.
> However, the introduction to CONFIG_PROPERTY_SIMULATED is still retained in 
> the DataNode.
>  !screenshot.png! 
> Here are some traces related to HDFS-2907:
> https://issues.apache.org/jira/browse/HDFS-2907
> https://github.com/apache/hadoop/commit/efbc58f30c8e8d9f26c6a82d32d53716fb2b222a#diff-ab77612831fcb9a35e14c294417f0919c7a30c0cef9a4aec6b32d5f2df957020



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