cdh集群的重启过程

1. 查看状态

[root@cdh-server1 ~]#  /opt/third/cm/etc/init.d/cloudera-scm-server  status
cloudera-scm-server dead but pid file exists

如果出现cloudera-scm-server dead but pid file exists，我们要删除

[root@cdh-server1 ~]# mv /root/cm-5.14.4/run/cloudera-scm-server.pid cloudera_lcc/

然后重启，重启完成后，要看到is running...

[root@cdh-server1 ~]# /opt/third/cm/etc/init.d/cloudera-scm-server  restart
cloudera-scm-server is already stopped
Starting cloudera-scm-server: 	                    [  OK  ]
[root@cdh-server1 ~]# /opt