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Posted to hdfs-dev@hadoop.apache.org by "BELUGA BEHR (JIRA)" <ji...@apache.org> on 2018/10/04 02:34:00 UTC

[jira] [Created] (HDFS-13958) Miscellaneous Improvements for FsVolumeSpi

BELUGA BEHR created HDFS-13958:
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             Summary: Miscellaneous Improvements for FsVolumeSpi
                 Key: HDFS-13958
                 URL: https://issues.apache.org/jira/browse/HDFS-13958
             Project: Hadoop HDFS
          Issue Type: Improvement
          Components: datanode
    Affects Versions: 3.3.0
            Reporter: BELUGA BEHR


The work in [HDFS-13947] allowed for using {{ArrayList}} instead of {{LinkedList}} when scanning DataNode local directories, however the {{FsVolumeSpi}} implementations were still using (and forcing) {{LinkedList}}.  I propose changing the {{FsVolumeSpi}} signatures to allow for {{Collection}} instead of {{LinkedList}}.  Since I'm looking at the code, I made some small improvements and check-style fixes.



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