CDH4/5集群正确启动和停止顺序

Stop:
1.cm web http://172.16.102.63:7180/
a.stop Cluster1
b.stop Cloudera Management Service

2.stop agent and server
[root@sh-datascienceresearch-01 ~]# service cloudera-scm-agent stop
[root@sh-datascienceresearch-02 ~]# service cloudera-scm-agent stop
[root@sh-datascienceresearch-03 ~]# service cloudera-scm-agent stop
[root@sh-datascienceresearch-04 ~]# service cloudera-scm-agent stop
[root@sh-datascienceresearch-05 ~]# service cloudera-scm-agent stop

[root@sh-datascienceresearch-01 ~]# service cloudera-scm-server stop

3.stop cm database
sh-datascienceresearch-01.telenav.cn:mysqladmin:/usr/local/mysql:>service mysql stop

Start:
1.start cm database
sh-datascienceresearch-01.telenav.cn:mysqladmin:/usr/local/mysql:>service mysql start

2.start server and agent
[root@sh-datascienceresearch-01 ~]# service cloudera-scm-server start

###wait 1min

[root@sh-datascienceresearch-01 ~]# service cloudera-scm-agent start
[root@sh-datascienceresearch-02 ~]# service cloudera-scm-agent start
[root@sh-datascienceresearch-03 ~]# service cloudera-scm-agent start
[root@sh-datascienceresearch-04 ~]# service cloudera-scm-agent start
[root@sh-datascienceresearch-05 ~]# service cloudera-scm-agent start

3.cm web http://172.16.102.63:7180/
a.start Cluster1
b.start Cloudera Management Service

###假如web界面出现，host等等图表信息读取错误，那么再手工重启 Cluster1 或者 Cloudera Management Service