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Posted to common-issues@hadoop.apache.org by "Manoj Govindassamy (JIRA)" <ji...@apache.org> on 2016/12/09 20:43:58 UTC

[jira] [Created] (HADOOP-13885) Implement getLinkTarget for ViewFileSystem

Manoj Govindassamy created HADOOP-13885:
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             Summary: Implement getLinkTarget for ViewFileSystem
                 Key: HADOOP-13885
                 URL: https://issues.apache.org/jira/browse/HADOOP-13885
             Project: Hadoop Common
          Issue Type: Task
          Components: viewfs
    Affects Versions: 3.0.0-alpha1
            Reporter: Manoj Govindassamy
            Assignee: Manoj Govindassamy


ViewFileSystem doesn't override FileSystem#getLinkTarget(). So, when view filesystem is used to resolve the symbolic links, the default FileSystem implementation throws UnsupportedOperationException.

The proposal is to define getLinkTarget() for ViewFileSystem and invoke the target FileSystem for resolving the symbolic links. Path thus returned is preferred to be a viewfs qualified path, so that it can be used again on the ViewFileSystem handle. 



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