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https://issues.apache.org/jira/browse/HADOOP-7203?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Allen Wittenauer resolved HADOOP-7203.
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Resolution: Fixed
> Folder Paths
> ------------
>
> Key: HADOOP-7203
> URL: https://issues.apache.org/jira/browse/HADOOP-7203
> Project: Hadoop Common
> Issue Type: Bug
> Components: build
> Affects Versions: 0.21.0
> Environment: Mac OS X (but the same effect in linux)
> $java -version
> java version "1.6.0_24"
> Java(TM) SE Runtime Environment (build 1.6.0_24-b07-334-10M3326)
> Java HotSpot(TM) 64-Bit Server VM (build 19.1-b02-334, mixed mode)
> Reporter: Anastasis Andronidis
> Priority: Minor
> Labels: build
>
> I tried to execute: ./bin/hadoop namenode -format in hadoop-0.21.0 inside a
> folder with path: ~/Desktop/my test/hadoop-0.21.0/
> But i kept receiving the following error:
> Exception in thread "main" java.lang.NoClassDefFoundError:
> test/hadoop-0/21/0/bin////logs
> Caused by: java.lang.ClassNotFoundException: me.hadoop-0.21.0.bin....logs
> at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
> at java.security.AccessController.doPrivileged(Native Method)
> at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
> at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
> Tried to change the language just to test what would happen. So I got a same
> error with a folder name with spaces:
> Exception in thread "main" java.lang.NoClassDefFoundError: ??????
> Caused by: java.lang.ClassNotFoundException: ??????
> at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
> at java.security.AccessController.doPrivileged(Native Method)
> at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
> at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
> (You can notice the ???, might this be a java issue?)
> I was able to run it only in folder names that didn't include spaces. Both
> english and greek.
> I tried to trace this issue and I found that the problem is in the
> HADOOP_HOME/hdfs script. On the last line where: exec "$JAVA" $JAVA_HEAP_MAX
> $HADOOP_OPTS $CLASS "$@" tries to be executed, variable HADOOP_OPTS has white
> spaces which produce the above errors.
> A solution to this problem could be to include double quotes to each path
> when they are collected and call exec command with eval at the front.
> I found a workaround to this issue by adding:
> tmp=`echo ${HADOOP_OPTS// /\\\ }`
> eval exec "$JAVA" $JAVA_HEAP_MAX $(echo ${tmp//\\ \-/\ \-}) " " $CLASS "$@"
> This code basically it added backslashes in front of each space in a path.
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