Failed: TEZ-2978 PreCommit Build #1407

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Jira: https://issues.apache.org/jira/browse/TEZ-2978
Build: https://builds.apache.org/job/PreCommit-TEZ-Build/1407/

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[ERROR] [Help 2] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException
[ERROR] 
[ERROR] After correcting the problems, you can resume the build with the command
[ERROR]   mvn <goals> -rf :tez-dag
[INFO] Build failures were ignored.




{color:red}-1 overall{color}.  Here are the results of testing the latest attachment
  http://issues.apache.org/jira/secure/attachment/12781117/TEZ-2978.1.txt
  against master revision d5c9649.

    {color:green}+1 @author{color}.  The patch does not contain any @author tags.

    {color:green}+1 tests included{color}.  The patch appears to include 1 new or modified test files.

    {color:green}+1 javac{color}.  The applied patch does not increase the total number of javac compiler warnings.

    {color:green}+1 javadoc{color}.  There were no new javadoc warning messages.

    {color:green}+1 findbugs{color}.  The patch does not introduce any new Findbugs (version 3.0.1) warnings.

    {color:green}+1 release audit{color}.  The applied patch does not increase the total number of release audit warnings.

    {color:red}-1 core tests{color}.  The patch failed these unit tests in :
                   org.apache.tez.dag.app.TestMockDAGAppMaster

Test results: https://builds.apache.org/job/PreCommit-TEZ-Build/1407//testReport/
Console output: https://builds.apache.org/job/PreCommit-TEZ-Build/1407//console

This message is automatically generated.


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    Adding comment to Jira.
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Comment added.
323ef4989c8d75506db86507f097390066c77bdd logged out


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    Finished build.
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Build step 'Execute shell' marked build as failure
Archiving artifacts
Compressed 3.16 MB of artifacts by 29.7% relative to #1405
[description-setter] Could not determine description.
Recording test results
Email was triggered for: Failure - Any
Sending email for trigger: Failure - Any



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############################## FAILED TESTS (if any) ##############################
1 tests failed.
FAILED:  org.apache.tez.dag.app.TestMockDAGAppMaster.testInternalPreemption

Error Message:
expected:<KILLED> but was:<SUCCEEDED>

Stack Trace:
java.lang.AssertionError: expected:<KILLED> but was:<SUCCEEDED>
	at org.junit.Assert.fail(Assert.java:88)
	at org.junit.Assert.failNotEquals(Assert.java:743)
	at org.junit.Assert.assertEquals(Assert.java:118)
	at org.junit.Assert.assertEquals(Assert.java:144)
	at org.apache.tez.dag.app.TestMockDAGAppMaster.testInternalPreemption(TestMockDAGAppMaster.java:215)