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Date: Wed, 25 Nov 2015 18:33:11 +0000 (UTC)
From: "Kuhu Shukla (JIRA)" <jira@apache.org>
To: yarn-issues@hadoop.apache.org
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Subject: [jira] [Commented] (YARN-4318) Test failure: TestAMAuthorization
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    [ https://issues.apache.org/jira/browse/YARN-4318?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15027332#comment-15027332 ] 

Kuhu Shukla commented on YARN-4318:
-----------------------------------

Although locally the tests pass, I see that the failure is coming from server not being able resolve the server hostname/address. I checked a few more pre-commits with this issue and somehow instead of 'localhost/127.0.0.1' the hostnames are 48 bit hex values .
{code}
public Connection(ConnectionId remoteId, int serviceClass) throws IOException {
      this.remoteId = remoteId;
      this.server = remoteId.getAddress();
      if (server.isUnresolved()) {
        throw NetUtils.wrapException(server.getHostName(),
            server.getPort(),
            null,
            0,
            new UnknownHostException());
      }
{code}
{code}
testUnauthorizedAccess[1](org.apache.hadoop.yarn.server.resourcemanager.TestAMAuthorization)  Time elapsed: 2.784 sec  <<< ERROR!
java.net.UnknownHostException: Invalid host name: local host is: (unknown); destination host is: "52b8ea35fca2":8030; java.net.UnknownHostException; For more details see:  http://wiki.apache.org/hadoop/UnknownHost
	at org.apache.hadoop.ipc.Client$Connection.<init>(Client.java:413)
{code}

These are not constant with respect to the machines that ran the precommit, that is, H5 host had two such runs with different 48 bit hex values.
The {{serviceaddr}} is using default config value, which means instead of an IP, the 0.0.0.0 in the default-config is picking a hex value from the environment of the machine/VM.
Could this be related to our latest Docker/Yetus migration? Asking [~stevel@apache.org] if he has any inputs on this. Appreciate it.

> Test failure: TestAMAuthorization
> ---------------------------------
>
>                 Key: YARN-4318
>                 URL: https://issues.apache.org/jira/browse/YARN-4318
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: Tsuyoshi Ozawa
>            Assignee: Kuhu Shukla
>
> {quote}
> Tests run: 4, Failures: 0, Errors: 2, Skipped: 0, Time elapsed: 14.891 sec <<< FAILURE! - in org.apache.hadoop.yarn.server.resourcemanager.TestAMAuthorization
> testUnauthorizedAccess[0](org.apache.hadoop.yarn.server.resourcemanager.TestAMAuthorization)  Time elapsed: 3.208 sec  <<< ERROR!
> java.net.UnknownHostException: Invalid host name: local host is: (unknown); destination host is: "b5a5dd9ec835":8030; java.net.UnknownHostException; For more details see:  http://wiki.apache.org/hadoop/UnknownHost
> 	at org.apache.hadoop.ipc.Client$Connection.<init>(Client.java:403)
> 	at org.apache.hadoop.ipc.Client.getConnection(Client.java:1512)
> 	at org.apache.hadoop.ipc.Client.call(Client.java:1439)
> 	at org.apache.hadoop.ipc.Client.call(Client.java:1400)
> 	at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:232)
> 	at com.sun.proxy.$Proxy15.registerApplicationMaster(Unknown Source)
> 	at org.apache.hadoop.yarn.api.impl.pb.client.ApplicationMasterProtocolPBClientImpl.registerApplicationMaster(ApplicationMasterProtocolPBClientImpl.java:106)
> 	at org.apache.hadoop.yarn.server.resourcemanager.TestAMAuthorization.testUnauthorizedAccess(TestAMAuthorization.java:273)
> {quote}



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