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Posted to hdfs-dev@hadoop.apache.org by "Uma Maheswara Rao G (Jira)" <ji...@apache.org> on 2020/08/12 20:48:00 UTC

[jira] [Created] (HDFS-15529) getChildFilesystems should include fallback fs as well

Uma Maheswara Rao G created HDFS-15529:
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             Summary: getChildFilesystems should include fallback fs as well
                 Key: HDFS-15529
                 URL: https://issues.apache.org/jira/browse/HDFS-15529
             Project: Hadoop HDFS
          Issue Type: Sub-task
          Components: viewfs, viewfsOverloadScheme
    Affects Versions: 3.4.0
            Reporter: Uma Maheswara Rao G
            Assignee: Uma Maheswara Rao G


Currently getChildSystems API used by many other APIs, like 

getAdditionalTokenIssuers, getTrashRoots etc.

If fallBack filesystem not included in child filesystems, Application like YARN who uses getAdditionalTokenIssuers, would not get delegation tokens for fallback fs. This would be a critical bug for secure clusters.



Similarly, trashRoots. when applications tried to use trashRoots, it will not considers trash folders from fallback. So, it will leak from cleanup logics. 

 



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