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https://issues.apache.org/jira/browse/HDFS-10260?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15264178#comment-15264178
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Hudson commented on HDFS-10260:
-------------------------------
FAILURE: Integrated in Hadoop-trunk-Commit #9693 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/9693/])
HDFS-10260. TestFsDatasetImpl#testCleanShutdownOfVolume often fails. (kihwal:
rev af9b000535cc987f66327e2b2bfe08923ba24c13)
*
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/impl/TestFsDatasetImpl.java
> 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
> Assignee: Rushabh S Shah
> Fix For: 2.8.0
>
> Attachments: HDFS-10260-v1.patch, HDFS-10260.patch
>
>
> 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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