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From Alvin UW <alvi...@gmail.com>
Subject Re: run Cassandra tutorial example
Date Tue, 23 Aug 2011 16:06:51 GMT
Thanks.

By your solution, the problem is fixed.
But my output is like this.
I don't understand what's the meaning of " Error stacktraces are turned on."

And I hope only the results are outputted, not the INFO.

 mvn -e exec:java -Dexec.args="get"
-Dexec.mainClass="com.datastax.tutorial.TutorialRunner"
+ Error stacktraces are turned on.
[INFO] Scanning for projects...
[INFO]
------------------------------------------------------------------------
[INFO] Building cassandra-tutorial
[INFO]    task-segment: [exec:java]
[INFO]
------------------------------------------------------------------------
[INFO] Preparing exec:java
[INFO] No goals needed for project - skipping
[INFO] [exec:java {execution: default-cli}]
HColumn(city=Austin)
[INFO]
------------------------------------------------------------------------
[INFO] BUILD SUCCESSFUL
[INFO]
------------------------------------------------------------------------
[INFO] Total time: 1 second
[INFO] Finished at: Tue Aug 23 12:02:27 EDT 2011
[INFO] Final Memory: 11M/100M


2011/8/23 aaron morton <aaron@thelastpickle.com>

> Did you sort this out ? The #cassandra IRC room is a good place to get help
> as well.
>
> I tried to build it first using
> mvn compile and got this different error
> "[ERROR] Failed to execute goal on project cassandra-tutorial: Could not
> resolve dependencies for project
> com.datastax.tutorial:cassandra-tutorial:jar:1.0-SNAPSHOT: Could not find
> artifact me.prettyprint:hector-core:jar:0.8.0-2-SNAPSHOT -> [Help 1]"
>
> There is a fix here...
> https://github.com/zznate/cassandra-tutorial/pull/1
>
> After than I did mvn compile and it worked.
>
> So added the schema…
> path-to-cassandra/bin/cassandra-cli --host localhost <
> ~/code/github/datastax/cassandra-tutorial/npanxx_script.txt
>
> And ran
> mvn -e exec:java -Dexec.args="get"
> -Dexec.mainClass="com.datastax.tutorial.TutorialRunner"
>
> Which outputted
> HColumn(city=Austin)
>
> Hope that helps.
>
> -----------------
> Aaron Morton
> Freelance Cassandra Developer
> @aaronmorton
> http://www.thelastpickle.com
>
> On 23/08/2011, at 10:30 AM, Alvin UW wrote:
>
> Hello,
>
> I'd like to try the cassandra tutorial example:
> https://github.com/zznate/cassandra-tutorial
>  by following the readme.
>
> After typing  mvn -e exec:java -Dexec.args="get"
> -Dexec.mainClass="com.datastax.tutorial.TutorialRunner"
> I got the following errors.
> Should I do something before the above command?
> Thanks.
>
> + Error stacktraces are turned on.
> [INFO] Scanning for projects...
> [INFO]
> ------------------------------------------------------------------------
> [INFO] Building cassandra-tutorial
> [INFO]    task-segment: [exec:java]
> [INFO]
> ------------------------------------------------------------------------
> [INFO] Preparing exec:java
> [INFO] No goals needed for project - skipping
> [INFO] [exec:java {execution: default-cli}]
> [INFO]
> ------------------------------------------------------------------------
> [ERROR] BUILD ERROR
> [INFO]
> ------------------------------------------------------------------------
> [INFO] An exception occured while executing the Java class.
> com.datastax.tutorial.TutorialRunner
>
> [INFO]
> ------------------------------------------------------------------------
> [INFO] Trace
> org.apache.maven.lifecycle.LifecycleExecutionException: An exception
> occured while executing the Java class. com.datastax.tutorial.TutorialRunner
>     at
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:719)
>     at
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeStandaloneGoal(DefaultLifecycleExecutor.java:569)
>     at
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:539)
>     at
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:387)
>     at
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:348)
>     at
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:180)
>     at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:328)
>     at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:138)
>     at org.apache.maven.cli.MavenCli.main(MavenCli.java:362)
>     at
> org.apache.maven.cli.compat.CompatibleMain.main(CompatibleMain.java:60)
>     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>     at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>     at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>     at java.lang.reflect.Method.invoke(Method.java:597)
>     at org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315)
>     at org.codehaus.classworlds.Launcher.launch(Launcher.java:255)
>     at
> org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430)
>     at org.codehaus.classworlds.Launcher.main(Launcher.java:375)
> Caused by: org.apache.maven.plugin.MojoExecutionException: An exception
> occured while executing the Java class. com.datastax.tutorial.TutorialRunner
>     at org.codehaus.mojo.exec.ExecJavaMojo.execute(ExecJavaMojo.java:346)
>     at
> org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:490)
>     at
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:694)
>     ... 17 more
> Caused by: java.lang.ClassNotFoundException:
> com.datastax.tutorial.TutorialRunner
>     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 java.lang.ClassLoader.loadClass(ClassLoader.java:248)
>     at org.codehaus.mojo.exec.ExecJavaMojo$1.run(ExecJavaMojo.java:284)
>     at java.lang.Thread.run(Thread.java:619)
> [INFO]
> ------------------------------------------------------------------------
> [INFO] Total time: < 1 second
> [INFO] Finished at: Mon Aug 22 18:24:05 EDT 2011
> [INFO] Final Memory: 7M/100M
>
>
>

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