It looks like scala is not on the classpath. Make sure SCALA_HOME is
set correctly in spark-env.sh

On Thu, Nov 21, 2013 at 6:54 PM, Umar Javed <[email protected]> wrote:
> Sorry if this seems abusing this list, but any idea what may be going on
> here?
>
> thanks!
>
>
> On Thu, Nov 21, 2013 at 12:55 PM, Umar Javed <[email protected]> wrote:
>>
>> Thanks. Here's the stderr output from the worker. Any ideas (the
>> compilation seemed to go fine):
>>
>> Spark Executor Command: "java" "-cp"
>> ":/proj/UW-PCP/incubator-spark/conf:/proj/UW-PCP/incubator-spark/assembly/target/scala-2.9.3/spark-assembly-0.9.0-incubating-SNAPSHOT-hadoop1.0.4.jar"
>> "-Xms512M" "-Xmx512M" "\
>> org.apache.spark.executor.CoarseGrainedExecutorBackend"
>> "akka://spark@node0-link0:35799/user/CoarseGrainedScheduler" "2"
>> "node0-link0" "2" "app-20131121135049-0001"
>> ========================================
>>
>> Exception in thread "main" java.lang.NoClassDefFoundError:
>> scala/ScalaObject
>>         at java.lang.ClassLoader.defineClass1(Native Method)
>>         at java.lang.ClassLoader.defineClass(ClassLoader.java:800)
>>         at
>> java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
>>         at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
>>         at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
>>         at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
>>         at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
>>         at java.security.AccessController.doPrivileged(Native Method)
>>         at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
>>         at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
>>         at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
>>         at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
>>         at java.lang.ClassLoader.defineClass1(Native Method)
>>         at java.lang.ClassLoader.defineClass(ClassLoader.java:800)
>>         at
>> java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
>>         at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
>>         at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
>>         at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
>>         at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
>>         at java.security.AccessController.doPrivileged(Native Method)
>>         at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
>>         at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
>>         at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
>>         at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
>>         at
>> sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:482)
>> Caused by: java.lang.ClassNotFoundException: scala.ScalaObject
>>         at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
>>         at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
>>         at java.security.AccessController.doPrivileged(Native Method)
>>         at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
>>         at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
>>         at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
>>         at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
>>         ... 25 more
>>
>>
>>
>> On Thu, Nov 21, 2013 at 5:48 AM, Prashant Sharma <[email protected]>
>> wrote:
>>>
>>> You might wanna check the stderr and stdout located in work(where
>>> standalone puts log of Executors ) directory.
>>>
>>>
>>> On Thu, Nov 21, 2013 at 7:07 PM, Umar Javed <[email protected]>
>>> wrote:
>>>>
>>>> I have a really simple standalone cluster with one worker located on the
>>>> same machine as the master. Both master and worker launch OK with the
>>>> scripts provided in /conf. However when I run the spark shell with the
>>>> command: MASTER=.... ./spark-shell, my worker fails to launch. Here's a
>>>> section of the log output:
>>>>
>>>> 13/11/21 06:32:34 INFO SparkDeploySchedulerBackend: Executor
>>>> app-20131121063231-0000/4 removed: Command exited with code 1
>>>> 13/11/21 06:32:34 INFO Client$ClientActor: Executor added:
>>>> app-20131121063231-0000/5 on worker-20131121063035-node0-link0-52768
>>>> (node0-link0:7077) with 2 cores
>>>> 13/11/21 06:32:34 INFO SparkDeploySchedulerBackend: Granted executor ID
>>>> app-20131121063231-0000/5 on hostPort node0-link0:7077 with 2 cores, 512.0
>>>> MB RAM
>>>> 13/11/21 06:32:34 INFO Client$ClientActor: Executor updated:
>>>> app-20131121063231-0000/5 is now RUNNING
>>>> 13/11/21 06:32:34 INFO Client$ClientActor: Executor updated:
>>>> app-20131121063231-0000/5 is now FAILED (Command exited with code 1)
>>>> 13/11/21 06:32:34 INFO SparkDeploySchedulerBackend: Executor
>>>> app-20131121063231-0000/5 removed: Command exited with code 1
>>>>
>>>>
>>>> Basically the executor on the worker keeps getting failed as soon as it
>>>> is launched.
>>>> Anybody have a solution?
>>>>
>>>> thanks!
>>>> Umar
>>>
>>>
>>>
>>>
>>> --
>>> s
>>
>>
>

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