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Date: Tue, 25 Jul 2017 06:21:00 +0000 (UTC)
From: "Akira Ajisaka (JIRA)" <jira@apache.org>
To: yarn-issues@hadoop.apache.org
Message-ID: <JIRA.13040690.1486401445000.4312.1500963660122@Atlassian.JIRA>
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Subject: [jira] [Comment Edited] (YARN-6150) TestContainerManagerSecurity
 tests for Yarn Server are flakey
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    [ https://issues.apache.org/jira/browse/YARN-6150?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16057150#comment-16057150 ] 

Akira Ajisaka edited comment on YARN-6150 at 7/25/17 6:20 AM:
--------------------------------------------------------------

If the hostname does not contains dot or is not localhost, NetUtils.createSocketAddr calls SecurityUtil.getByNameWithSearch(String) and it adds trailing dot to the hostname (please see Javadoc of SecurityUtil.getByExactName for the detail) and then resolve the hostname. In the environment, "af73ca3dfb64." (with trailing dot) cannot be resolved, so the error occurs.

Replacing the above code with
{code:title=TestContainerManagerSecurity#getContainerManagementProtocolProxy}
    final InetSocketAddress addr =
        new InetSocketAddress(nodeId.getHost(), nodeId.getPort());
{code}
fixes the error.


was (Author: ajisakaa):
If the hostname does not contains dot or is not localhost, NetUtils.createSocketAddr calls SecurityUtils.getByNameWithSearch(String) and it adds trailing dot to the hostname (please see Javadoc of  NetUtils.getByExactName for the detail) and then resolve the hostname. In the environment, "af73ca3dfb64." (with trailing dot) cannot be resolved, so the error occurs.

Replacing the above code with
{code:title=TestContainerManagerSecurity#getContainerManagementProtocolProxy}
    final InetSocketAddress addr =
        new InetSocketAddress(nodeId.getHost(), nodeId.getPort());
{code}
fixes the error.

> TestContainerManagerSecurity tests for Yarn Server are flakey
> -------------------------------------------------------------
>
>                 Key: YARN-6150
>                 URL: https://issues.apache.org/jira/browse/YARN-6150
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: test
>            Reporter: Daniel Sturman
>            Assignee: Daniel Sturman
>             Fix For: 2.9.0, 3.0.0-beta1
>
>         Attachments: YARN-6150.001.patch, YARN-6150.002.patch, YARN-6150.003.patch, YARN-6150.004.patch, YARN-6150.005.patch, YARN-6150.006.patch, YARN-6150.007.patch
>
>
> Repeated runs of {{org.apache.hadoop.yarn.server.TestContainerManagedSecurity}} can either pass or fail on repeated runs on the same codebase.  Also, the two runs (one in secure mode, one without security) aren't well labeled in JUnit.


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