In this article we will discuss how can we load jars residing over NFS in JBoss AS-7 classpath. In some development environment, when there are multiple jars and properties files are being used by multiple servers, it is good to put all of them in a…
在linux下写了一个很easy的Hello world程序,编译执行居然报错:Error: Could not find or load main class Hello 最后发现是CLASSPATH的问题. 首先须要检查jdk环境变量是否配置正确:參考这篇文章:ubuntu12.04 安装配置jdk1.7 主要在环境变量这块: export JAVA_HOME=/usr/java/jdk1.8.0 export JRE_HOME=${JAVA_HOME}/jre export CLASSPA…
在 linux 下写了一个非常简单的 Hello World 程序,编译正常,运行报错:Error: Could not find or load main class Hello 这是由于 CLASSPATH 配置不当导致的,我们需要检查一下 CLASSPATH 后面是否有英文状态下的“.:”. 主要在环境变量这块: export JAVA_HOME=/usr/java/jdk1.8.0export JRE_HOME=${JAVA_HOME}/jre export CLASSPATH=.:${…
spark-shell --conf -h Usage: ./bin/spark-shell [options] Options: --master MASTER_URL spark://host:port, mesos://host:port, yarn, or local. --deploy-mode DEPLOY_MODE Whether to launch the driver program locally ("client") or on one of the worker…