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

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

    Description: 
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)

  was:
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)


> 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
>
> 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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