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From "Rakesh R (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-5356) MiniDFSCluster shoud close all open FileSystems when shutdown()
Date Tue, 17 Feb 2015 08:13:26 GMT

    [ https://issues.apache.org/jira/browse/HDFS-5356?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14323801#comment-14323801
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Rakesh R commented on HDFS-5356:
--------------------------------

[~cmccabe] I've replaced {{FileSystem#closeAll}} with another approach. Kindly look at the
latest patch when you get some time. Thanks!

I think, the test failures are unrelated.
{code}
Tests in error: 
  TestFSImageWithAcl.setUp:52 java.lang.NoClassDefFoundError: org/apache/hadoop/io/IOUtils$NullOutputStream
  TestFSImageWithAcl.tearDown:58 NullPointerException
{code}


> MiniDFSCluster shoud close all open FileSystems when shutdown()
> ---------------------------------------------------------------
>
>                 Key: HDFS-5356
>                 URL: https://issues.apache.org/jira/browse/HDFS-5356
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: test
>    Affects Versions: 3.0.0, 2.2.0
>            Reporter: haosdent
>            Assignee: Rakesh R
>            Priority: Critical
>         Attachments: HDFS-5356-1.patch, HDFS-5356-2.patch, HDFS-5356-3.patch, HDFS-5356.patch
>
>
> After add some metrics functions to DFSClient, I found that some unit tests relates to
metrics are failed. Because MiniDFSCluster are never close open FileSystems, DFSClients are
alive after MiniDFSCluster shutdown(). The metrics of DFSClients in DefaultMetricsSystem are
still exist and this make other unit tests failed.



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