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From "Steve Loughran (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-10415) TestDistributedFileSystem#testDFSCloseOrdering() fails on branch-2
Date Wed, 18 May 2016 18:45:13 GMT

    [ https://issues.apache.org/jira/browse/HDFS-10415?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15289563#comment-15289563
] 

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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