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https://issues.apache.org/jira/browse/HDFS-16294?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Work on HDFS-16294 started by JiangHua Zhu.
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> 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
>            Reporter: JiangHua Zhu
>            Assignee: JiangHua Zhu
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 2.9.2
>
>         Attachments: screenshot.png
>
>          Time Spent: 10m
>  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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