Spark Cassandra NoClassDefFoundError guava / cache / CacheLoader [英] Spark Cassandra NoClassDefFoundError guava/cache/CacheLoader

问题描述

运行Cassandra 2.2.8，Win7，JDK8，Spark2，在CP中运行：Cassandra核心3.12，spark-cassandra-2.11，Spark-cassandra-java-2.11，Spark2.11，spark-network-common_2.11 ，Guava-16.0.jar，sacala2.11.jar等等
试图运行一个基本的例子 - 编译好，但是当我尝试在第一行运行时自己得到错误：
SparkConf conf = new SparkConf（）;
java.lang.NoClassDefFoundError：org / spark_project / guava / cache / CacheLoader

Running Cassandra 2.2.8, Win7, JDK8, Spark2, HAve thse in the CP: Cassandra core 3.12, spark-cassandra-2.11, Spark-cassandra-java-2.11, Spark2.11, spark-network-common_2.11, Guava-16.0.jar, sacala2.11.jar, etc Trying to run a basic example- compiles fine, but when when I try to run- at the first line itself get error: SparkConf conf = new SparkConf(); java.lang.NoClassDefFoundError: org/spark_project/guava/cache/CacheLoader

缺少 spark-network-common 应该会导致此错误 - 但我确实拥有它。任何冲突的罐子？
谢谢

Missing spark-network-common is supposed to cause this error - but I do have it. Any conflicting jars? Thanks

推荐答案

所以答案是：不确切知道答案，但问题解决了。使用pom并在eclipse中创建了一个maven项目。它带来了几个（打）罐子，它终于奏效了。因此，一些冲突/缺失的罐子可能会试图调查它 - 很难弄明白。

So the answer is: don't exactly know the answer but the problem was solved. Used the the pom and created a maven project in eclipse. it brought in several (dozen) jars and it finally worked. So likely some conflicting/missing jar - tried to look into it- hard to figure out.

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