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From "Andrew Wang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-11823) Checking for Verifier in RPC Denied Reply
Date Thu, 14 Jul 2016 21:25:20 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-11823?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15378414#comment-15378414

Andrew Wang commented on HADOOP-11823:

Hi Pradeep, like I said in my previous message, I don't have a copy of NFS Illustrated, so
I can't verify this fix. Maybe someone else can review, or if you can point to some public

> Checking for Verifier in RPC Denied Reply
> -----------------------------------------
>                 Key: HADOOP-11823
>                 URL: https://issues.apache.org/jira/browse/HADOOP-11823
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: nfs
>    Affects Versions: 2.6.0, 2.7.0
>            Reporter: Gokul Soundararajan
>            Assignee: Pradeep Nayak Udupi Kadbet
>              Labels: newbie
>         Attachments: HADOOP-11823.patch
>   Original Estimate: 168h
>  Remaining Estimate: 168h
> Hi,
> There is a bug in the way hadoop-nfs parses the reply for a RPC denied message. Specifically,
this happens in RpcDeniedReply.java line #50.
> When RPC returns a denied reply, the code should not check for a verifier. It is a bug
as it doesn't match the RPC protocol. (See Page 33 from NFS Illustrated book). 
> I would be happy to submit the patch but I need some help to commit into mainline. I
haven't committed into Hadoop yet.
> Thanks,
> Gokul

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