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From "Todd Lipcon (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-4750) Support NFSv3 interface to HDFS
Date Thu, 25 Apr 2013 04:14:19 GMT

    [ https://issues.apache.org/jira/browse/HDFS-4750?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13641394#comment-13641394
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Todd Lipcon commented on HDFS-4750:
-----------------------------------

bq. For the second question, as long as the second user uses NFS gateway to read the closed
file, the second user should be able to get the data buffered in NFS gateway

This precludes having multiple NFS gateways in operation simultaneously for increased throughput,
right? I'd imagine the typical deployment scenario would be to run an NFS gateway on every
machine and then have them mount localhost in order to avoid a bottleneck scenario. Even in
a data loading situation, I'd expect a set of several "gateway nodes" to be used in round-robin
in order to increase ingest throughput beyond what a single host can handle.
                
> Support NFSv3 interface to HDFS
> -------------------------------
>
>                 Key: HDFS-4750
>                 URL: https://issues.apache.org/jira/browse/HDFS-4750
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>    Affects Versions: 3.0.0
>            Reporter: Brandon Li
>            Assignee: Brandon Li
>         Attachments: HADOOP-NFS-Proposal.pdf
>
>
> Access HDFS is usually done through HDFS Client or webHDFS. Lack of seamless integration
with client’s file system makes it difficult for users and impossible for some applications
to access HDFS. NFS interface support is one way for HDFS to have such easy integration.
> This JIRA is to track the NFS protocol support for accessing HDFS. With HDFS client,
webHDFS and the NFS interface, HDFS will be easier to access and be able support more applications
and use cases. 
> We will upload the design document and the initial implementation. 

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