启动问题: 执行start-all.sh出现以下异常信息: failed to launch: nice -n 0 /bin/spark-class org.apache.spark.deploy.worker.Worker --webui-port 8081 spark://master:7077 解决方案: Just added export JAVA_HOME=/usr/java/default in /root/.bashrc su root vi /root/.bashrc expor…