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https://issues.apache.org/jira/browse/HDFS-4559?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13595517#comment-13595517
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Plamen Jeliazkov commented on HDFS-4559:
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I can understand the case for DFS. I have noticed there is a resolvePath()
method in FileSystem though. I am assuming there was an attempt to introduce
symlinks at the DFS layer. I can close that JIRA myself shortly.
I find it odd however that WebHDFS can make symlinks but not resolve them.
Since NameNodeWebHdfsMethods has access to the NameNodeRpcServer, I believe it
should be possible for WebHDFS to resolve those created symlinks using some
implementation. Does FileContext never make use of the NameNodeRpcServer in
order to resolve symlinks?
> WebHDFS does not allow resolution of Symlinks
> ---------------------------------------------
>
> Key: HDFS-4559
> URL: https://issues.apache.org/jira/browse/HDFS-4559
> Project: Hadoop HDFS
> Issue Type: Bug
> Affects Versions: 2.0.3-alpha
> Reporter: Plamen Jeliazkov
> Assignee: Plamen Jeliazkov
> Fix For: 3.0.0, 2.0.4-beta
>
>
> WebHDFS allows you to create symlinks via the CREATESYMLINK operation, but
> the GETFILEINFO operation specifically calls the getFileInfo() method of the
> NameNodeRpcServer which does not resolve symlinks.
> I propose adding a parameter to GETFILEINFO such that if true will call
> getFileLinkInfo() rather than getFileInfo() which will resolve any symlinks.
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