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https://issues.apache.org/jira/browse/HDFS-2856?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14044008#comment-14044008
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Hadoop QA commented on HDFS-2856:
---------------------------------
{color:green}+1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12652461/HDFS-2856.5.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 7 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: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/7234//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/7234//console
This message is automatically generated.
> Fix block protocol so that Datanodes don't require root or jsvc
> ---------------------------------------------------------------
>
> Key: HDFS-2856
> URL: https://issues.apache.org/jira/browse/HDFS-2856
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: datanode, security
> Affects Versions: 3.0.0, 2.4.0
> Reporter: Owen O'Malley
> Assignee: Chris Nauroth
> Attachments: Datanode-Security-Design.pdf,
> Datanode-Security-Design.pdf, Datanode-Security-Design.pdf,
> HDFS-2856-Test-Plan-1.pdf, HDFS-2856.1.patch, HDFS-2856.2.patch,
> HDFS-2856.3.patch, HDFS-2856.4.patch, HDFS-2856.5.patch,
> HDFS-2856.prototype.patch
>
>
> Since we send the block tokens unencrypted to the datanode, we currently
> start the datanode as root using jsvc and get a secure (< 1024) port.
> If we have the datanode generate a nonce and send it on the connection and
> the sends an hmac of the nonce back instead of the block token it won't
> reveal any secrets. Thus, we wouldn't require a secure port and would not
> require root or jsvc.
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