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https://issues.apache.org/jira/browse/HDFS-245?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12829152#action_12829152
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Sanjay Radia commented on HDFS-245:
-----------------------------------
Feedback on patch 31: TestFcHdfsSymlink
* dfsClient is unused.
* FileContext fc = FileContext.getFileContext(fs.getUri());
should be
FileContext fc = FileContext.getFileContext(cluster.getUri());
The FileSystem interface should not be used all all in any of the
FileContext tests.
* Teardown
move the deletes for base dir to teardown - easier to add new tests
* testDiffFileContextRelTarget() why set wd?
* testAccessLinkFromFileSystem() - this should really be FromAbsFileSystem
(or FromAFS).
* testSetPermission
Also add a few additional lines to test set-permission on link to a dir
* Add test for quota - setQuota should not follow symlink.
> Create symbolic links in HDFS
> -----------------------------
>
> Key: HDFS-245
> URL: https://issues.apache.org/jira/browse/HDFS-245
> Project: Hadoop HDFS
> Issue Type: New Feature
> Reporter: dhruba borthakur
> Assignee: Eli Collins
> Attachments: 4044_20081030spi.java, designdocv1.txt, designdocv2.txt,
> designdocv3.txt, HADOOP-4044-strawman.patch, symlink-0.20.0.patch,
> symlink-25-hdfs.patch, symlink-26-hdfs.patch, symlink-26-hdfs.patch,
> symLink1.patch, symLink1.patch, symLink11.patch, symLink12.patch,
> symLink13.patch, symLink14.patch, symLink15.txt, symLink15.txt,
> symlink16-common.patch, symlink16-hdfs.patch, symlink16-mr.patch,
> symlink17-common.txt, symlink17-hdfs.txt, symlink18-common.txt,
> symlink19-common-delta.patch, symlink19-common.txt, symlink19-common.txt,
> symlink19-hdfs-delta.patch, symlink19-hdfs.txt, symlink20-common.patch,
> symlink20-hdfs.patch, symlink21-common.patch, symlink21-hdfs.patch,
> symlink22-common.patch, symlink22-hdfs.patch, symlink23-common.patch,
> symlink23-hdfs.patch, symlink24-hdfs.patch, symlink27-hdfs.patch,
> symlink28-hdfs.patch, symlink29-hdfs.patch, symlink29-hdfs.patch,
> symlink30-hdfs.patch, symlink31-hdfs.patch, symlink33-hdfs.patch,
> symlink35-hdfs.patch, symlink36-hdfs.patch, symLink4.patch, symLink5.patch,
> symLink6.patch, symLink8.patch, symLink9.patch
>
>
> HDFS should support symbolic links. A symbolic link is a special type of file
> that contains a reference to another file or directory in the form of an
> absolute or relative path and that affects pathname resolution. Programs
> which read or write to files named by a symbolic link will behave as if
> operating directly on the target file. However, archiving utilities can
> handle symbolic links specially and manipulate them directly.
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