Develop Reference

History Server not starting on cloudera Hadoop

I have setup the 'hadoop' by following the instructions given in here.
I downloaded and deployed it successfully and can able to run all the daemons except historyserver and run the example programs.
when I run sbin/yarn-daemon.sh start historyserver, the following error is displayed.
Exception in thread "main" java.lang.NoClassDefFoundError: historyserver
Caused by: java.lang.ClassNotFoundException: historyserver
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
Could not find the main class: historyserver. Program will exit.
Can anyone do help me in this issue?

To start the history server, it seems that the command is now:
./sbin/mr-jobhistory-daemon.sh start historyserver

quartz scheduler sample program giving error

I am trying to run the sample helloworld program for quartz scheduling given on roseindi.net
http://www.roseindia.net/quartz/quartz-scheduler-tutorial.shtml
I have both the classes given there exactly similar setup in my java projecy with quartz version 1.6 - all.jar in the project library.
When I try to run the application I get the following Exception
Exception in thread "main" java.lang.NoClassDefFoundError: javax/transaction/UserTransaction
at org.quartz.impl.StdSchedulerFactory.instantiate(StdSchedulerFactory.java:1104)
at org.quartz.impl.StdSchedulerFactory.getScheduler(StdSchedulerFactory.java:1355)
at oiaoerpdataconnector.HelloSchedule.HelloScheduleRun(HelloSchedule.java:25)
at oiaoerpdataconnector.HelloSchedule.main(HelloSchedule.java:37)
Caused by: java.lang.ClassNotFoundException: javax.transaction.UserTransaction
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
... 4 more
Java Result: 1
What am I missing here?
Thanks,
Priyank

What am I missing here?
jta.jar

How to fix: Exception in thread "main" java.lang.NoClassDefFoundError in BoneCP

I'm working from this example and I am running into this error after adding log4j, slf4j and bonecp to the project:
run:
Exception in thread "main" java.lang.NoClassDefFoundError: com/google/common/base/FinalizableReferenceQueue
at com.jolbox.bonecp.BoneCP.<init>(BoneCP.java:321)
at javasampleapps.BoneCPExample.main(BoneCPExample.java:35)
Caused by: java.lang.ClassNotFoundException: com.google.common.base.FinalizableReferenceQueue
at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
... 2 more
Java Result: 1
BUILD SUCCESSFUL (total time: 3 seconds)

In addition to BoneCP and SLF4J, you need to add Google Guava, because BoneCP's requirements page states that it needs to be present. Download guava-*.jar and add it to your classpath the same way you did with SLF4J and BoneCP.

You will need to add those jars to the classpath of your Java process when you run it. For example,
java -classpath lib/log4j.jar;lib/slf4j.jar;lib/bonecp.jar [your_class]
This assumes that the jars are in a dir called lib which is in the directory you execute the Java command from.

How do I add a .jar file to the classpath on Mac OS X?

I'm starting to become pretty irritated, because EVERY time I try to add a JAR file to the classpath to run a program (which compiles fine in Eclipse) I get a "java.lang.NoClassDefFoundError" exception.
The file swt.jar and GUI.class (main class) are in the same directory. If I issue this command: "java -cp swt.jar GUI", I get this error message:
Exception in thread "main" java.lang.NoClassDefFoundError: GUI Caused
by: java.lang.ClassNotFoundException: GUI at
java.net.URLClassLoader$1.run(URLClassLoader.java:202) at
java.security.AccessController.doPrivileged(Native Method) at
java.net.URLClassLoader.findClass(URLClassLoader.java:190) at
java.lang.ClassLoader.loadClass(ClassLoader.java:306) at
sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301) at
java.lang.ClassLoader.loadClass(ClassLoader.java:247)
If I formulate the command like this: "java GUI -cp swt.jar", it'll throw this exception:
Exception in thread "main" java.lang.NoClassDefFoundError:
org/eclipse/swt/widgets/Display at GUI.main(GUI.java:9) Caused by:
java.lang.ClassNotFoundException: org.eclipse.swt.widgets.Display at
java.net.URLClassLoader$1.run(URLClassLoader.java:202) at
java.security.AccessController.doPrivileged(Native Method) at
java.net.URLClassLoader.findClass(URLClassLoader.java:190) at
java.lang.ClassLoader.loadClass(ClassLoader.java:306) at
sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301) at
java.lang.ClassLoader.loadClass(ClassLoader.java:247) ... 1 more
I just want to know how I can add .jar files to the runtime classpath on mac.
All of these commands are being issued from the Terminal on a 64-bit MacBook running Mac OS X Lion.

The problem, I think, is that you are specifying swt.jar as the classpath, but the file you're using is not in the jar. You neeed to specify both the jar and this dir as the classpath.
e.g.
java -cp swt.jar:./ GUI

This one will work, with modifications:
If I formulate the command like this: "java GUI -cp swt.jar"
You just didn't go far enough. You have to add ALL the 3rd party JARs, including the ones for Eclipse SWT and all your other dependencies.

google data api for youtube

I'm trying to run the sample program, which comes with Google Data API. I get a runtime error at following line
YouTubeService myService = new YouTubeService("gdataSample-YouTube-1");
The error is the following:
run:
Exception in thread "main" java.lang.NoClassDefFoundError: com/google/common/collect/Maps
at com.google.gdata.wireformats.AltRegistry.<init>(AltRegistry.java:118)
at com.google.gdata.wireformats.AltRegistry.<init>(AltRegistry.java:100)
at com.google.gdata.client.Service.<clinit>(Service.java:532)
at YouTubeReadonlyClient.main(YouTubeReadonlyClient.java:713)
Caused by: java.lang.ClassNotFoundException: com.google.common.collect.Maps
at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
... 4 more
Java Result: 1
BUILD SUCCESSFUL (total time: 0 seconds)
I tried both Google Data API versions 1.35.0 and 1.35.1, and I get the same error in both cases.

Looks like you don't have the collections library in your class path.
It's in the gdata/java/deps directory in the zip file. Include the google-collect-1.0-rc1.jar file in your classpath and you should be fine. (You may also need jsr305.jar - I'm not sure.)

Three little steps:
Download the zip file from
http://www.docjar.com/jar_detail/google-collect-1.0-rc1.jar.html
Extract the zip file
Add the jar to your build path.