前言 在说享元模式之前,你一定见到过这样的面试题 public class Test { public static void main(String[] args) { Integer a=Integer.valueOf(127); Integer b=new Integer(127); System.out.println(a==b); int c=127; System.out.println(a==c); System.out.println(b==c); } } 问你输出结果是什么?有
Zeppelin版本0.6.2 1. Export SPARK_HOME In conf/zeppelin-env.sh, export SPARK_HOME environment variable with your Spark installation path. You can optionally export HADOOP_CONF_DIR and SPARK_SUBMIT_OPTIONS export SPARK_HOME=/usr/crh//spark export HADOOP