[jira] [Created] (HDFS-10260) TestFsDatasetImpl#testCleanShutdownOfVolume often fails

[Wei-Chiu Chuang (JIRA)]

Wei-Chiu Chuang created HDFS-10260:
--------------------------------------

             Summary: TestFsDatasetImpl#testCleanShutdownOfVolume often fails
                 Key: HDFS-10260
                 URL: https://issues.apache.org/jira/browse/HDFS-10260
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: datanode, test
            Reporter: Wei-Chiu Chuang


This test failure occurs in upstream Jenkins. Looking at the test code, I think 
it should be improved to capture the root cause of failure:
E.g. change {{Thread.sleep(1000)}} to {{GenericTestUtils.waitFor}} and use 
{{GenericTestUtils.assertExceptionContains}} to replace 
{code}
Assert.assertTrue(ioe.getMessage().contains(info.toString()));
{code}

https://builds.apache.org/job/Hadoop-Hdfs-trunk-Java8/1062/testReport/junit/org.apache.hadoop.hdfs.server.datanode.fsdataset.impl/TestFsDatasetImpl/testCleanShutdownOfVolume/

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.hadoop.hdfs.server.datanode.fsdataset.impl.TestFsDatasetImpl.testCleanShutdownOfVolume(TestFsDatasetImpl.java:683)

Standard Error

Exception in thread "DataNode: 
[[[DISK]file:/home/jenkins/jenkins-slave/workspace/Hadoop-Hdfs-trunk-Java8/hadoop-hdfs-project/hadoop-hdfs/target/test/data/dfs/data/data1/,
 
[DISK]file:/home/jenkins/jenkins-slave/workspace/Hadoop-Hdfs-trunk-Java8/hadoop-hdfs-project/hadoop-hdfs/target/test/data/dfs/data/data2/]]
  heartbeating to localhost/127.0.0.1:35113" java.lang.NullPointerException
        at 
org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.FsDatasetImpl.getBlockReports(FsDatasetImpl.java:1714)
        at 
org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.FsDatasetImpl.shutdownBlockPool(FsDatasetImpl.java:2591)
        at 
org.apache.hadoop.hdfs.server.datanode.DataNode.shutdownBlockPool(DataNode.java:1479)
        at 
org.apache.hadoop.hdfs.server.datanode.BPOfferService.shutdownActor(BPOfferService.java:411)
        at 
org.apache.hadoop.hdfs.server.datanode.BPServiceActor.cleanUp(BPServiceActor.java:494)
        at 
org.apache.hadoop.hdfs.server.datanode.BPServiceActor.run(BPServiceActor.java:749)
        at java.lang.Thread.run(Thread.java:744)




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