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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-6439) NFS should not reject NFS requests to the NULL procedure whether port monitoring is enabled or not
Date Wed, 18 Jun 2014 00:35:03 GMT

    [ https://issues.apache.org/jira/browse/HDFS-6439?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14034653#comment-14034653
] 

Hadoop QA commented on HDFS-6439:
---------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12650887/HDFS-6439.005.patch
  against trunk revision .

    {color:green}+1 @author{color}.  The patch does not contain any @author tags.

    {color:green}+1 tests included{color}.  The patch appears to include 3 new or modified
test files.

    {color:green}+1 javac{color}.  The applied patch does not increase the total number of
javac compiler warnings.

    {color:green}+1 javadoc{color}.  There were no new javadoc warning messages.

    {color:green}+1 eclipse:eclipse{color}.  The patch built with eclipse:eclipse.

    {color:green}+1 findbugs{color}.  The patch does not introduce any new Findbugs (version
1.3.9) warnings.

    {color:green}+1 release audit{color}.  The applied patch does not increase the total number
of release audit warnings.

    {color:red}-1 core tests{color}.  The patch failed these unit tests in hadoop-common-project/hadoop-nfs
hadoop-hdfs-project/hadoop-hdfs hadoop-hdfs-project/hadoop-hdfs-nfs:

                  org.apache.hadoop.hdfs.server.namenode.TestCacheDirectives
                  org.apache.hadoop.fs.TestHdfsNativeCodeLoader
                  org.apache.hadoop.hdfs.web.TestWebHDFS

    {color:green}+1 contrib tests{color}.  The patch passed contrib unit tests.

Test results: https://builds.apache.org/job/PreCommit-HDFS-Build/7150//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/7150//console

This message is automatically generated.

> NFS should not reject NFS requests to the NULL procedure whether port monitoring is enabled
or not
> --------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-6439
>                 URL: https://issues.apache.org/jira/browse/HDFS-6439
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: nfs
>    Affects Versions: 2.4.0
>            Reporter: Brandon Li
>            Assignee: Aaron T. Myers
>         Attachments: HDFS-6439.003.patch, HDFS-6439.004.patch, HDFS-6439.005.patch, HDFS-6439.patch,
HDFS-6439.patch, linux-nfs-disallow-request-from-nonsecure-port.pcapng, mount-nfs-requests.pcapng
>
>
> As discussed in HDFS-6406, this JIRA is to track the follow update:
> 1. Port monitoring is the feature name with traditional NFS server and we may want to
make the config property (along with related variable allowInsecurePorts) something as dfs.nfs.port.monitoring.

> 2 . According to RFC2623 (http://www.rfc-editor.org/rfc/rfc2623.txt):
> {quote}    Whether port monitoring is enabled or not, NFS servers SHOULD NOT reject NFS
requests to the NULL procedure (procedure number 0). See subsection 2.3.1, "NULL procedure"
for a complete explanation. {quote}
> I do notice that NFS clients (most time) send mount NULL and nfs NULL from non-privileged
port. If we deny NULL call in mountd or nfs server, the client can't mount the export even
as user root.
> 3. it would be nice to have the user guide updated for the port monitoring feature.



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