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https://issues.apache.org/jira/browse/HDFS-15140?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17025964#comment-17025964
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Stephen O'Donnell commented on HDFS-15140:
------------------------------------------

Test failures seem to be related to "unable to create native thread". Fixed the 
style issues and pushed a new version to see if the tests come back better.

> Replace FoldedTreeSet in Datanode with SortedSet or TreeMap
> -----------------------------------------------------------
>
>                 Key: HDFS-15140
>                 URL: https://issues.apache.org/jira/browse/HDFS-15140
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: datanode
>    Affects Versions: 3.3.0
>            Reporter: Stephen O'Donnell
>            Assignee: Stephen O'Donnell
>            Priority: Major
>         Attachments: HDFS-15140.001.patch, HDFS-15140.002.patch
>
>
> Based on the problems discussed in HDFS-15131, I would like to explore 
> replacing the FoldedTreeSet structure in the datanode with a builtin Java 
> equivalent - either SortedSet or TreeMap.



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