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https://issues.apache.org/jira/browse/SAMZA-780?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14935643#comment-14935643
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Navina Ramesh commented on SAMZA-780:
-------------------------------------
+1 for the patch. Thanks for fixing it!
> Exception in thread "Container Allocator Thread"
> java.lang.ClassCastException: org.apache.hadoop.security.token.Token cannot
> be cast to org.apache.hadoop.security.token.TokenIdentifier
> ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: SAMZA-780
> URL: https://issues.apache.org/jira/browse/SAMZA-780
> Project: Samza
> Issue Type: Bug
> Components: yarn
> Affects Versions: 0.10.0
> Reporter: Michael Martin
> Assignee: Michael Martin
> Priority: Blocker
> Attachments: SAMZA-780.patch
>
>
> When running a Samza job in Hadoop 2.6.0 against the latest source code I get
> the following error:
> {code}
> java version "1.8.0_60"
> Java(TM) SE Runtime Environment (build 1.8.0_60-b27)
> Java HotSpot(TM) 64-Bit Server VM (build 25.60-b23, mixed mode)
> Exception in thread "Container Allocator Thread"
> java.lang.ClassCastException: org.apache.hadoop.security.token.Token cannot
> be cast to org.apache.hadoop.security.token.TokenIdentifier
> at
> org.apache.samza.job.yarn.ContainerUtil.startContainer(ContainerUtil.java:174)
> at
> org.apache.samza.job.yarn.ContainerUtil.runContainer(ContainerUtil.java:109)
> at
> org.apache.samza.job.yarn.ContainerAllocator.run(ContainerAllocator.java:66)
> at java.lang.Thread.run(Thread.java:745)
> {code}
> The offending line of code is attempting an invalid cast, and instead should
> be doing something like:
> {code}
> TokenIdentifier token = ((Token) iter.next()).decodeIdentifier();
> {code}
> See
> https://github.com/apache/hadoop/blob/release-2.6.0/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/token/Token.java
> for reference
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