Wei-Chiu Chuang created HDFS-13662:
--------------------------------------

             Summary: TestBlockReaderLocal#testStatisticsForErasureCodingRead 
is flaky
                 Key: HDFS-13662
                 URL: https://issues.apache.org/jira/browse/HDFS-13662
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: erasure-coding, test
            Reporter: Wei-Chiu Chuang


The test failed in this precommit for a patch that only modifies an unrelated 
test.
https://builds.apache.org/job/PreCommit-HDFS-Build/24401/testReport/org.apache.hadoop.hdfs.client.impl/TestBlockReaderLocal/testStatisticsForErasureCodingRead/

This test also failed occasionally in our internal test.

{noformat}
Stacktrace
java.lang.AssertionError
        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.hadoop.hdfs.client.impl.TestBlockReaderLocal.testStatisticsForErasureCodingRead(TestBlockReaderLocal.java:842)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at 
org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
        at 
org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
        at 
org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
        at 
org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
        at 
org.junit.internal.runners.statements.FailOnTimeout$StatementThread.run(FailOnTimeout.java:74)
{noformat}



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