Folder Paths
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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
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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