nitesh bhatia wrote:
Thanks. It worked. :) in hadoop-env.sh its required to write exact path for
java framework. I changed it to
export
JAVA_HOME=/System/Library/Frameworks/JavaVM.framework/Versions/1.6.0/Home
and it started.
In hadoop 0.18.2 export JAVA_HOME=/Library/Java/Home is working fine. I am
confused why we need to give exact path in 0.19 version.
Most likely reason is that your /Library/Java/Home some how ends up
using JDK 1.5. 0.19 and up require JDK 1.6.x.
Raghu.
Thankyou
--nitesh
On Sun, Jan 25, 2009 at 1:52 PM, Joerg Rieger <
joerg.rie...@mni.fh-giessen.de> wrote:
Hello,
what path did you set in conf/hadoop-env.sh?
Before Hadoop 0.19 I had in hadoop-env.sh:
export JAVA_HOME=/Library/Java/Home
But that path, despite using java-preferences to change Java versions,
still uses the Java 1.5 version, e.g.:
$ /Library/Java/Home/bin/java -version
java version "1.5.0_16"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_16-b06-284)
Java HotSpot(TM) Client VM (build 1.5.0_16-133, mixed mode, sharing)
You have to change the setting to:
export
JAVA_HOME=/System/Library/Frameworks/JavaVM.framework/Versions/1.6.0/Home
Joerg
On 25.01.2009, at 00:16, nitesh bhatia wrote:
Hi
My current default settings are for java 1.6
nMac:hadoop-0.19.0 Aryan$ $JAVA_HOME/bin/java -version
java version "1.6.0_07"
Java(TM) SE Runtime Environment (build 1.6.0_07-b06-153)
Java HotSpot(TM) 64-Bit Server VM (build 1.6.0_07-b06-57, mixed mode)
The system is working fine with Hadoop 0.18.2.
--nitesh
On Sun, Jan 25, 2009 at 4:15 AM, Craig Macdonald <cra...@dcs.gla.ac.uk
wrote:
Hi,
I guess that the java on your PATH is different from the setting of your
$JAVA_HOME env variable.
Try $JAVA_HOME/bin/java -version?
Also, there is a program called Java Preferences on each system for
changing the default java version used.
Craig
nitesh bhatia wrote:
Hi
I am trying to setup Hadoop 0.19 on OS X. Current Java Version is
java version "1.6.0_07"
Java(TM) SE Runtime Environment (build 1.6.0_07-b06-153)
Java HotSpot(TM) 64-Bit Server VM (build 1.6.0_07-b06-57, mixed mode)
When I am trying to format dfs using "bin/hadoop dfs -format" command.
I
am
getting following errors:
nMac:hadoop-0.19.0 Aryan$ bin/hadoop dfs -format
Exception in thread "main" java.lang.UnsupportedClassVersionError: Bad
version number in .class file
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:675)
at
java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
at java.net.URLClassLoader.access$100(URLClassLoader.java:56)
at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:316)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:280)
at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:374)
Exception in thread "main" java.lang.UnsupportedClassVersionError: Bad
version number in .class file
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:675)
at
java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
at java.net.URLClassLoader.access$100(URLClassLoader.java:56)
at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:316)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:280)
at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:374)
I am not sure why this error is coming. I am having latest Java version.
Can
anyone help me out with this?
Thanks
Nitesh
--
Nitesh Bhatia
Dhirubhai Ambani Institute of Information & Communication Technology
Gandhinagar
Gujarat
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