[jira] [Created] (FLINK-3393) ExternalProcessRunner wait to finish copying error stream

[Shang Yuanchun (Jira)]

Greg Hogan created FLINK-3393:
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             Summary: ExternalProcessRunner wait to finish copying error stream
                 Key: FLINK-3393
                 URL: https://issues.apache.org/jira/browse/FLINK-3393
             Project: Flink
          Issue Type: Bug
            Reporter: Greg Hogan
            Assignee: Greg Hogan
            Priority: Trivial


Travis CI reported the following error, which could be caused by {{ExternalProcessRunner.run}} returning before the {{PipeForwarder}} has finished copying standard error. Resolution is for {{ExternalProcessRunner.run}} to join on the {{PipeForwarder}}.

{code}
Tests run: 4, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 1.414 sec <<< FAILURE! - in org.apache.flink.util.ExternalProcessRunnerTest

testFailing(org.apache.flink.util.ExternalProcessRunnerTest)  Time elapsed: 0.405 sec  <<< FAILURE!

java.lang.AssertionError: null

        at org.junit.Assert.fail(Assert.java:86)

        at org.junit.Assert.assertTrue(Assert.java:41)

        at org.junit.Assert.assertTrue(Assert.java:52)

        at org.apache.flink.util.ExternalProcessRunnerTest.testFailing(ExternalProcessRunnerTest.java:75)
{code}



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