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https://issues.apache.org/jira/browse/HDFS-15427?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17142757#comment-17142757
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Hudson commented on HDFS-15427:
-------------------------------
SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #18374 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/18374/])
HDFS-15427. Merged ListStatus with Fallback target filesystem and (github: rev
7c02d1889bbeabc73c95a4c83f0cd204365ff410)
* (edit)
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/viewfs/ViewFs.java
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/fs/viewfs/TestViewFileSystemLinkFallback.java
* (edit)
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/viewfs/ViewFileSystem.java
* (edit)
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/viewfs/InodeTree.java
> Merged ListStatus with Fallback target filesystem and InternalDirViewFS.
> ------------------------------------------------------------------------
>
> Key: HDFS-15427
> URL: https://issues.apache.org/jira/browse/HDFS-15427
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: viewfs
> Affects Versions: 3.2.1
> Reporter: Uma Maheswara Rao G
> Assignee: Uma Maheswara Rao G
> Priority: Major
> Fix For: 3.4.0
>
>
> Currently ListStatus will not consider fallback directory when passed path is
> an internal Directory(except root).
> Since we configured fallback, we should be able to list fallback directories
> when passed path is internal directory. It should list the union of
> fallbackDir and internalDir.
> So, that fallback directories will not be shaded when path matched to
> internal dir.
>
> The idea here is, user configured default filesystem with fallback fs, then
> every operation not having link should go to fallback fs. That way users need
> not configure all paths as mount from default fs.
>
> This will be very useful in the case of ViewFSOverloadScheme.
> In ViewFSOverloadScheme, if you choose your existing cluster to be configured
> as fallback fs, then you can configure desired mount paths to external fs and
> rest other path should go to fallback.
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