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https://issues.apache.org/jira/browse/HADOOP-9041?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yanbo Liang updated HADOOP-9041:
--------------------------------

    Release Note: 
The infinite loop caused by FileSystem.loadFileSystems(). If the users register 
 org.apache.hadoop.fs.FsUrlStreamHandlerFactory as the current 
URLStreamHandlerFactory, then calling 
FsUrlStreamHandlerFactory.createURLStreamHandler() will lead to invoke 
FileSystem.loadFileSystems(). FileSystem.loadFileSystems() will cause to invoke 
FsUrlStreamHandlerFactory.createURLStreamHandler() when resolving a URL. Then 
the infinite loop occurs.

Just moving the function of FileSystem.loadFileSystems() into a static code 
block. It will initialize as the construction of Class and only once.
          Status: Patch Available  (was: Open)
    
> FileSystem initialization can go into infinite loop
> ---------------------------------------------------
>
>                 Key: HADOOP-9041
>                 URL: https://issues.apache.org/jira/browse/HADOOP-9041
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: fs
>    Affects Versions: 2.0.2-alpha
>            Reporter: Radim Kolar
>            Priority: Critical
>         Attachments: fstest.groovy, HADOOP-9041.patch
>
>
> More information is there: https://jira.springsource.org/browse/SHDP-111
> Referenced source code from example is: 
> https://github.com/SpringSource/spring-hadoop/blob/master/src/main/java/org/springframework/data/hadoop/configuration/ConfigurationFactoryBean.java
> from isolating that cause it looks like if you register: 
> org.apache.hadoop.fs.FsUrlStreamHandlerFactory before calling 
> FileSystem.loadFileSystems() then it goes into infinite loop.

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