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From subash basnet <yasub...@gmail.com>
Subject Re: class not found exception Logging while running JavaKMeansExample
Date Tue, 16 Aug 2016 09:33:15 GMT
Hello Yuzhihong,

I didn't get how to implement what you said in the JavaKMeansExample.java.
As I get the logging exception as while creating the spark session:
Exception in thread "main" java.lang.NoClassDefFoundError:
org/apache/spark/internal/Logging
at
com.dfki.spark.kmeans.KMeansSpark.JavaKMeansExample.main(JavaKMeansExample.java
*:43*)
Caused by: java.lang.ClassNotFoundException:
org.apache.spark.internal.Logging

The exception occurs at the *builder()*:

42    SparkSession spark = SparkSession
*43     .builder()*
44      .appName("JavaKMeansExample")
45     .getOrCreate();

I have added all the necessary log4j and sl4j dependencies in pom. I am
still not getting what dependencies I am missing.

Best Regards,
Subash Basnet

On Mon, Aug 15, 2016 at 6:50 PM, Ted Yu <yuzhihong@gmail.com> wrote:

> Logging has become private in 2.0 release:
>
> private[spark] trait Logging {
>
> On Mon, Aug 15, 2016 at 9:48 AM, subash basnet <yasubash@gmail.com> wrote:
>
>> Hello all,
>>
>> I am trying to run JavaKMeansExample of the spark example project. I am
>> getting the classnotfound exception error:
>> *Exception in thread "main" java.lang.NoClassDefFoundError:
>> org/apache/spark/internal/Logging*
>> at java.lang.ClassLoader.defineClass1(Native Method)
>> at java.lang.ClassLoader.defineClass(ClassLoader.java:760)
>> at jcom.dfki.spark.kmeans.KMeansSpark.JavaKMeansExample.main(
>> JavaKMeansExample.java:43)
>> *Caused by: java.lang.ClassNotFoundException:
>> org.apache.spark.internal.Logging*
>> at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
>>
>> I have added all the logging related dependencies as below:
>> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-api</artifactId>
>> <version>${slf4j.version}</version> </dependency> <dependency>
>> <groupId>org.slf4j</groupId> <artifactId>slf4j-log4j12</artifactId>
>> <version>${slf4j.version}</version> <scope>${hadoop.deps.scope}</scope>
>> </dependency> <dependency> <groupId>org.slf4j</groupId>
>> <artifactId>jul-to-slf4j</artifactId> <version>${slf4j.version}</version>
>> </dependency> <dependency> <groupId>org.slf4j</groupId>
>> <artifactId>jcl-over-slf4j</artifactId> <version>${slf4j.version}</version>
>> <!-- <scope>runtime</scope> --> <!-- more correct, but scalac
2.10.3
>> doesn't like it --> </dependency> <dependency> <groupId>log4j</groupId>
>> <artifactId>log4j</artifactId> <version>${log4j.version}</version>
>> </dependency> <dependency> <groupId>commons-logging</groupId>
>> <artifactId>commons-logging</artifactId> <version>1.2</version>
>> </dependency> What depedencies could I be missing, any idea? Regards,
>> Subash Basnet
>>
>>
>> ---------------------------------------------------------------------
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>>
>
>

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