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https://issues.apache.org/jira/browse/HADOOP-9041?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13531882#comment-13531882
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Andy Isaacson commented on HADOOP-9041:
---------------------------------------
{code}
+ FileSystem.getFileSystemClass("file",conf);
{code}
missing a space after the ",".
{code}
+public class TestFileSystemInitialization {
+
+ /**
{code}
Indentation is wonky, we do not use tabs and we use 2 space indents.
{code}
+ * Check if FileSystem can be properly initialized if
URLStreamHandlerFactory
+ * is registered.
+ */
{code}
Since this is such an obscure failure condition, please mention the JIRA in the
comment so that someone who is curious does not have to dig in the VCS history
to figure out what's going on.
{code}
+ try {
+ FileSystem.getFileSystemClass("file:", conf);
+ }
+ catch (IOException ok) {}
+ }
{code}
Please add asserts as appropriate to ensure that we follow the expected code
path. For example, if we expect {{IOException}}, add {{assertFalse(true);}}
after calling {{getFileSystemClass}}, with comments explaining the expected
behavior. See {{TestLocalDirAllocator.java}} for an example.
> 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
> Assignee: Radim Kolar
> Priority: Critical
> Attachments: fsinit2.txt, fsinit-unit.txt, fstest.groovy,
> HADOOP-9041.patch, HADOOP-9041.patch, TestFileSystem.java
>
>
> 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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