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From "lohit vijayarenu (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-3348) TestUrlStreamHandler hangs on LINUX
Date Thu, 08 May 2008 19:29:19 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-3348?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

lohit vijayarenu updated HADOOP-3348:
-------------------------------------

    Attachment: HADOOP-3348.patch

Attached patch fixes the testcase to set UrlStreamHandlerFactory after brining up the cluster.
If we decide to track issue about fixing handling local files with LocalFileSystem, then this
patchs the failing testcase. 

> TestUrlStreamHandler hangs on LINUX
> -----------------------------------
>
>                 Key: HADOOP-3348
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3348
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: fs
>    Affects Versions: 0.18.0
>         Environment: LINUX 2.6.9
>            Reporter: lohit vijayarenu
>         Attachments: 3348-2nd-option.patch, Datanode_jstack.txt, HADOOP-3348.patch
>
>
> TestUrlStreamHandler sets setURLStreamHandlerFactory as
> {noformat}
> FsUrlStreamHandlerFactory factory =
>         new org.apache.hadoop.fs.FsUrlStreamHandlerFactory();
>     java.net.URL.setURLStreamHandlerFactory(factory);
> {noformat}
> After this, MiniDFSCluster seems to hang while Datanodes tries to register in setNewStorageID,
specifically at
> {noformat}
> rand = SecureRandom.getInstance("SHA1PRNG").nextInt(Integer.MAX_VALUE);
> {noformat}
> jstack output shows that the main thread is stuck in RawLocalFileSystem$LocalFSFileInputStream.read
> (Attaching the jstack)

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