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From "Liang Xie (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-7552) change FsVolumeList toString() to fix TestDataNodeVolumeFailureToleration
Date Fri, 19 Dec 2014 07:10:13 GMT

     [ https://issues.apache.org/jira/browse/HDFS-7552?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Liang Xie updated HDFS-7552:
----------------------------
    Attachment: HDFS-7552-001.txt

> change FsVolumeList toString() to fix TestDataNodeVolumeFailureToleration 
> --------------------------------------------------------------------------
>
>                 Key: HDFS-7552
>                 URL: https://issues.apache.org/jira/browse/HDFS-7552
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: datanode, test
>    Affects Versions: 2.7.0
>            Reporter: Liang Xie
>            Assignee: Liang Xie
>         Attachments: HDFS-7552-001.txt
>
>
> see https://builds.apache.org/job/PreCommit-HDFS-Build/9088//testReport/org.apache.hadoop.hdfs.server.datanode/TestDataNodeVolumeFailureToleration/testValidVolumesAtStartup/
> Per my understanding, it was due to:
> commit 3b173d95171d01ab55042b1162569d1cf14a8d43
> Author: Colin Patrick Mccabe <cmccabe@cloudera.com>
> Date:   Wed Dec 17 16:41:59 2014 -0800
>     HDFS-7531. Improve the concurrent access on FsVolumeList (Lei Xu via Colin P. McCabe)
> -  volatile List<FsVolumeImpl> volumes = null;
> +  private final AtomicReference<FsVolumeImpl[]> volumes =
> +      new AtomicReference<>(new FsVolumeImpl[0]);
> so the old case will complain at here:
> {code}
>       assertTrue("The DN should have started with this directory",
>           si.contains(dataDir1Actual.getPath()));
> {code}



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