localhost: full log in /root/install/spark-2.4.5-bin-hadoop2.7/logs/spark-root-org.apache.spark.deploy.worker.Worker-1-hadoop5.out
原因：打开此文件后，发现java.net.BindException: 无法指定被请求的地址: Service ‘sparkWorker’ failed after 16 retries (on a random free port)!
解决方法：vi /etc/hosts，发现ip与主机名不对应。修改即可
