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https://issues.apache.org/jira/browse/HDFS-252?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13182035#comment-13182035
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Brock Noland commented on HDFS-252:
-----------------------------------
I wrote a NFS4 proxy for HDFS which seems to work well. The lack of an
open/close operator in NFS3 drove me towards NFS4. It's Apache licensed and
located here: https://github.com/brockn/hdfs-nfs-proxy
> Export the HDFS file system through a NFS protocol
> --------------------------------------------------
>
> Key: HDFS-252
> URL: https://issues.apache.org/jira/browse/HDFS-252
> Project: Hadoop HDFS
> Issue Type: New Feature
> Reporter: dhruba borthakur
> Assignee: dhruba borthakur
> Attachments: nfshadoop.tar.gz
>
>
> It would be nice if can expose the HDFS filesystem using the NFS protocol.
> There are a couple of options that I could find:
> 1. Use a user space C-language-implementation of a NFS server and then use
> the libhdfs API to integrate that code with Hadoop. There is such an
> implementation available at
> http://sourceforge.net/project/showfiles.php?group_id=66203.
> 2. Use a user space Java implementation of a NFS server and then integrate
> it with HDFS using Java API. There is such an implementation of NFS server at
> http://void.org/~steven/jnfs/.
> I have experimented with Option 2 and have written a first version of the
> Hadoop integration. I am attaching the code for your preliminary feedback.
> This implementation of the Java NFS server has one limitation: it supports
> UDP only. Some licensing issues will have to be sorted out before it can be
> used. Steve (the writer of the NFS server implemenation) has told me that he
> can change the licensing of the code if needed.
>
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