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From "Arpit Agarwal (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-6666) Abort NameNode and DataNode startup if security is enabled but block access token is not enabled.
Date Wed, 01 Apr 2015 03:54:53 GMT

    [ https://issues.apache.org/jira/browse/HDFS-6666?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14389948#comment-14389948

Arpit Agarwal commented on HDFS-6666:

Hi [~vijaysbhat], thank you for volunteering to help with this issue and adding a test case.

You will need to enable the Maven startKdc profile for running secure NN tests. Secure NN
uses ApacheDS but unfortunately the URL is broken. Looks like we'll need to fix the download
URL to get startKdc working. Do you want to give it a shot too?

$ mvn -q test -PtestKerberos,startKdc -Dtest=TestSecureNameNode
     [exec] Result: 1
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-antrun-plugin:1.7:run (kdc)
on project hadoop-common: An Ant BuildException has occured: Can't get http://newverhost.com/pub//directory/apacheds/unstable/1.5/1.5.7/apacheds-1.5.7.tar.gz
to /Users/aagarwal/src/hdp/hadoop-common-project/hadoop-common/target/test-classes/kdc/downloads/apacheds-1.5.7.tar.gz
[ERROR] around Ant part ...<get dest="/Users/aagarwal/src/hdp/hadoop-common-project/hadoop-common/target/test-classes/kdc/downloads"
skipexisting="true" verbose="true" src="http://newverhost.com/pub//directory/apacheds/unstable/1.5/1.5.7/apacheds-1.5.7.tar.gz"/>..

> Abort NameNode and DataNode startup if security is enabled but block access token is
not enabled.
> -------------------------------------------------------------------------------------------------
>                 Key: HDFS-6666
>                 URL: https://issues.apache.org/jira/browse/HDFS-6666
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: datanode, namenode, security
>    Affects Versions: 3.0.0, 2.5.0
>            Reporter: Chris Nauroth
>            Assignee: Vijay Bhat
>            Priority: Minor
> Currently, if security is enabled by setting hadoop.security.authentication to kerberos,
but HDFS block access tokens are disabled by setting dfs.block.access.token.enable to false
(which is the default), then the NameNode logs an error and proceeds, and the DataNode proceeds
without even logging an error.  This jira proposes that this it's invalid to turn on security
but not turn on block access tokens, and that it would be better to fail fast and abort the
daemons during startup if this happens.

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