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Date: Wed, 12 Oct 2016 04:27:20 +0000 (UTC)
From: "Sangjin Lee (JIRA)" <jira@apache.org>
To: common-issues@hadoop.apache.org
Message-ID: <JIRA.12837922.1434393460000.800957.1476246440586@Atlassian.JIRA>
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Subject: [jira] [Comment Edited] (HADOOP-12090) minikdc-related unit tests
 fail consistently on some platforms
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    [ https://issues.apache.org/jira/browse/HADOOP-12090?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15567076#comment-15567076 ] 

Sangjin Lee edited comment on HADOOP-12090 at 10/12/16 4:27 AM:
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Just to be clear, this issue is caused because Mina (the networking stack on which ApacheDS depends) does set the send and receive buffer size to 1 KB (see DIRSERVER-2074 for more detail). If we move away from that behavior by using different libraries or else, the problem may go away.


was (Author: sjlee0):
Just to be clear, this issue is caused because Mina (the networking stack on which ApacheDS depends) does set the send and receive buffer size to 1 KB (see DIRSERVER-2074 more detail). If we move away from that behavior either by using different libraries, the problem might go away.

> minikdc-related unit tests fail consistently on some platforms
> --------------------------------------------------------------
>
>                 Key: HADOOP-12090
>                 URL: https://issues.apache.org/jira/browse/HADOOP-12090
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: kms, test
>    Affects Versions: 2.7.0
>            Reporter: Sangjin Lee
>            Assignee: Sangjin Lee
>         Attachments: HADOOP-12090.001.patch, HADOOP-12090.002.patch
>
>
> On some platforms all unit tests that use minikdc fail consistently. Those tests include TestKMS, TestSaslDataTransfer, TestTimelineAuthenticationFilter, etc.
> Typical failures on the unit tests:
> {noformat}
> java.lang.AssertionError: org.apache.hadoop.security.authentication.client.AuthenticationException: GSSException: No valid credentials provided (Mechanism level: Cannot get a KDC reply)
> 	at org.junit.Assert.fail(Assert.java:88)
> 	at org.apache.hadoop.crypto.key.kms.server.TestKMS$8$4.run(TestKMS.java:1154)
> 	at org.apache.hadoop.crypto.key.kms.server.TestKMS$8$4.run(TestKMS.java:1145)
> 	at java.security.AccessController.doPrivileged(Native Method)
> 	at javax.security.auth.Subject.doAs(Subject.java:415)
> 	at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1645)
> 	at org.apache.hadoop.crypto.key.kms.server.TestKMS.doAs(TestKMS.java:261)
> 	at org.apache.hadoop.crypto.key.kms.server.TestKMS.access$100(TestKMS.java:76)
> {noformat}
> The errors that cause this failure on the KDC server on the minikdc are a NullPointerException:
> {noformat}
> org.apache.mina.filter.codec.ProtocolDecoderException: java.lang.NullPointerException: message (Hexdump: ...)
> 	at org.apache.mina.filter.codec.ProtocolCodecFilter.messageReceived(ProtocolCodecFilter.java:234)
> 	at org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:434)
> 	at org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1200(DefaultIoFilterChain.java:48)
> 	at org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:802)
> 	at org.apache.mina.core.filterchain.IoFilterAdapter.messageReceived(IoFilterAdapter.java:120)
> 	at org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:434)
> 	at org.apache.mina.core.filterchain.DefaultIoFilterChain.fireMessageReceived(DefaultIoFilterChain.java:426)
> 	at org.apache.mina.core.polling.AbstractPollingIoProcessor.read(AbstractPollingIoProcessor.java:604)
> 	at org.apache.mina.core.polling.AbstractPollingIoProcessor.process(AbstractPollingIoProcessor.java:564)
> 	at org.apache.mina.core.polling.AbstractPollingIoProcessor.process(AbstractPollingIoProcessor.java:553)
> 	at org.apache.mina.core.polling.AbstractPollingIoProcessor.access$400(AbstractPollingIoProcessor.java:57)
> 	at org.apache.mina.core.polling.AbstractPollingIoProcessor$Processor.run(AbstractPollingIoProcessor.java:892)
> 	at org.apache.mina.util.NamePreservingRunnable.run(NamePreservingRunnable.java:65)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.NullPointerException: message
> 	at org.apache.mina.filter.codec.AbstractProtocolDecoderOutput.write(AbstractProtocolDecoderOutput.java:44)
> 	at org.apache.directory.server.kerberos.protocol.codec.MinaKerberosDecoder.decode(MinaKerberosDecoder.java:65)
> 	at org.apache.mina.filter.codec.ProtocolCodecFilter.messageReceived(ProtocolCodecFilter.java:224)
> 	... 15 more
> {noformat}


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