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https://issues.apache.org/jira/browse/HDFS-10415?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15289563#comment-15289563
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Steve Loughran commented on HDFS-10415:
---------------------------------------
there's another option, you know. Do the stats init in the constructor rather
than initialize. There is no information used in setting up
{{DFSClient.storageStatistics}}, its only ever written to once. Move it to the
constructor and make final and maybe this problem will go away (maybe, mocks
are a PITA)
> TestDistributedFileSystem#testDFSCloseOrdering() fails on branch-2
> ------------------------------------------------------------------
>
> Key: HDFS-10415
> URL: https://issues.apache.org/jira/browse/HDFS-10415
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: test
> Affects Versions: 2.9.0
> Environment: jenkins
> Reporter: Sangjin Lee
> Assignee: Mingliang Liu
> Attachments: HDFS-10415-branch-2.000.patch,
> HDFS-10415-branch-2.001.patch, HDFS-10415.000.patch
>
>
> {noformat}
> Tests run: 24, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 51.096 sec
> <<< FAILURE! - in org.apache.hadoop.hdfs.TestDistributedFileSystem
> testDFSCloseOrdering(org.apache.hadoop.hdfs.TestDistributedFileSystem) Time
> elapsed: 0.045 sec <<< ERROR!
> java.lang.NullPointerException: null
> at
> org.apache.hadoop.hdfs.DistributedFileSystem.delete(DistributedFileSystem.java:790)
> at
> org.apache.hadoop.fs.FileSystem.processDeleteOnExit(FileSystem.java:1417)
> at org.apache.hadoop.fs.FileSystem.close(FileSystem.java:2084)
> at
> org.apache.hadoop.hdfs.DistributedFileSystem.close(DistributedFileSystem.java:1187)
> at
> org.apache.hadoop.hdfs.TestDistributedFileSystem.testDFSCloseOrdering(TestDistributedFileSystem.java:217)
> {noformat}
> This is with Java 8 on Mac. It passes fine on trunk. I haven't tried other
> combinations.
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