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From "Vinayakumar B (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-5356) MiniDFSCluster shoud close all open FileSystems when shutdown()
Date Wed, 11 Mar 2015 10:35:38 GMT

    [ https://issues.apache.org/jira/browse/HDFS-5356?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14356687#comment-14356687
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Vinayakumar B commented on HDFS-5356:
-------------------------------------

bq. It is failing when comparing SnapshotTestHelper.compareDumpedTreeInFile(fsnBefore, fsnMiddle,
compareQuota);. fsnBefore and fsnMiddle differs in their storagespace values.
This seems unrelated to closure of filesystem.
OK now I got. If you are closing the filesystem, then open files are being closed which results
in diff in these image sizes.
I didnt check that image file sizes were being checked in the test. I just told about the
functionality.

> 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-5356-4.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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