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https://issues.apache.org/jira/browse/HADOOP-9652?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Colin Patrick McCabe updated HADOOP-9652:
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Description:
{{FileContext#getFileLinkStatus}} does not actually get the owner and mode of
the symlink, but instead uses the owner and mode of the symlink target. If the
target can't be found, it fills in bogus values (the empty string and
FsPermission.getDefault) for these.
Symlinks have an owner distinct from the owner of the target they point to, and
getFileLinkStatus ought to expose this.
In some operating systems, symlinks can have a permission other than 0777. We
ought to expose this in RawLocalFilesystem and other places, although we don't
necessarily have to support this behavior in HDFS.
was:
{{FileContext#getFileLinkStatus}} does not actually get the owner and mode of
the symlink, but instead uses the owner and mode of the symlink target. If the
target can't be found, it fills in bogus values (the empty string and
FsPermission.getDefault) for these.
Symlinks have an owner distinct from who created them, and getFileLinkStatus
ought to expose this.
In some operating systems, symlinks can have a permission other than 0777. We
ought to expose this in RawLocalFilesystem and other places, although we don't
necessarily have to support this behavior in HDFS.
> FileContext#getFileLinkStatus does not fill in the link owner and mode
> ----------------------------------------------------------------------
>
> Key: HADOOP-9652
> URL: https://issues.apache.org/jira/browse/HADOOP-9652
> Project: Hadoop Common
> Issue Type: Bug
> Reporter: Colin Patrick McCabe
> Assignee: Andrew Wang
>
> {{FileContext#getFileLinkStatus}} does not actually get the owner and mode of
> the symlink, but instead uses the owner and mode of the symlink target. If
> the target can't be found, it fills in bogus values (the empty string and
> FsPermission.getDefault) for these.
> Symlinks have an owner distinct from the owner of the target they point to,
> and getFileLinkStatus ought to expose this.
> In some operating systems, symlinks can have a permission other than 0777.
> We ought to expose this in RawLocalFilesystem and other places, although we
> don't necessarily have to support this behavior in HDFS.
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