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https://issues.apache.org/jira/browse/HDFS-13167?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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BELUGA BEHR updated HDFS-13167:
-------------------------------
    Attachment: HDFS-13167.2.patch

> DatanodeAdminManager Improvements
> ---------------------------------
>
>                 Key: HDFS-13167
>                 URL: https://issues.apache.org/jira/browse/HDFS-13167
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: hdfs
>    Affects Versions: 3.0.0
>            Reporter: BELUGA BEHR
>            Assignee: BELUGA BEHR
>            Priority: Trivial
>         Attachments: HDFS-13167.1.patch, HDFS-13167.2.patch
>
>
> # Use Collection type Set instead of List for tracking nodes
> # Fix logging statements that are erroneously appending variables instead of 
> using parameters
> # Miscellaneous small improvements
> As an example, the {{node}} variable is being appended to the string instead 
> of being passed as an argument to the {{trace}} method for variable 
> substitution.
> {code}
> LOG.trace("stopDecommission: Node {} in {}, nothing to do." +
>           node, node.getAdminState());
> {code}



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