在spark集群中使用命令：

sbin/start-all.sh

啟動集群時報錯：

starting org.apache.spark.deploy.master.Master, logging to /home/yxk/cluster/spark/logs/spark-yxk-org.apache.spark.deploy.master.Master-1-linux.out
yxk@linux's password:
linux: starting org.apache.spark.deploy.worker.Worker, logging to /home/yxk/cluster/spark/logs/spark-yxk-org.apache.spark.deploy.worker.Worker-1-linux.out
linux: failed to launch: nice -n 0 /home/yxk/cluster/spark/bin/spark-class org.apache.spark.deploy.worker.Worker --webui-port 8081 spark://linux:7077
linux:   JAVA_HOME is not set
linux: full log in /home/yxk/cluster/spark/logs/spark-yxk-org.apache.spark.deploy.worker.Worker-1-linux.out

從日志分析中可以看出啟動時找不到JAVA_HOME

不過檢查當前用戶下的java環境是正常的，經分析尋找資料在這個博客中找到了 原理https://stackoverflow.com/questions/33955635/why-does-start-all-sh-from-root-cause-failed-to-launch-org-apache-spark-deploy

?

解決方法

在當前用戶的.bashrc文件中加入java的環境變量

$ vim ~/.bashrc加入java環境變量

重新啟動spark集群

使用jps命令查看當前的進程。顯示正常