[
https://issues.apache.org/jira/browse/HDFS-5338?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13793215#comment-13793215
]
Hadoop QA commented on HDFS-5338:
---------------------------------
{color:red}-1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12608116/h5338_20131011.patch
against trunk revision .
{color:green}+1 @author{color}. The patch does not contain any @author
tags.
{color:red}-1 tests included{color}. The patch doesn't appear to include
any new or modified tests.
Please justify why no new tests are needed for this
patch.
Also please list what manual steps were performed to
verify this patch.
{color:green}+1 javac{color}. The applied patch does not increase the
total number of javac compiler warnings.
{color:green}+1 javadoc{color}. The javadoc tool did not generate any
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:green}+1 core tests{color}. The patch passed unit tests in
hadoop-hdfs-project/hadoop-hdfs.
{color:green}+1 contrib tests{color}. The patch passed contrib unit tests.
Test results:
https://builds.apache.org/job/PreCommit-HDFS-Build/5173//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/5173//console
This message is automatically generated.
> Add a conf to disable hostname check in DN registration
> -------------------------------------------------------
>
> Key: HDFS-5338
> URL: https://issues.apache.org/jira/browse/HDFS-5338
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: namenode
> Reporter: Tsz Wo (Nicholas), SZE
> Assignee: Tsz Wo (Nicholas), SZE
> Attachments: h5338_20131009.patch, h5338_20131011.patch
>
>
> During DN registration, if the ip and the hostname in the DN InetAddress are
> the same (i.e. reverse name lookup falied; see [the
> javadoc|http://docs.oracle.com/javase/6/docs/api/java/net/InetAddress.html#getHostName%28%29]),
> the DN will be disallowed to register, where the DN InetAddress was obtained
> from the socket. It is a performance improvement added by HDFS-3990 to avoid
> unnecessary DNS resolutions.
> We propose to add a conf property for disabling the check. Otherwise,
> clusters without reverse DNS lookup support does not work.
--
This message was sent by Atlassian JIRA
(v6.1#6144)
