Ambari server 搭建过程中到了revicw环境遇到点击deploy：发现页面没有响应
Console显示server 返回500 error错误，页面中没有提示更多的报错信息。
经过日志查看，发现日志中报了如下错误：
12 Mar 2018 21:25:41,903 ERROR [alert-event-bus-2] AlertReceivedListener:480 - Unable to process alert hbase_regionserver_process for an invalid cluster named NGAD_MSE_AB_N1
12 Mar 2018 21:25:41,904 ERROR [alert-event-bus-2] AlertReceivedListener:480 - Unable to process alert spark_thriftserver_status for an invalid cluster named NGAD_MSE_AB_N1
12 Mar 2018 21:25:41,904 ERROR [alert-event-bus-2] AlertReceivedListener:480 - Unable to process alert datanode_webui for an invalid cluster named NGAD_MSE_AB_N1
12 Mar 2018 21:25:41,904 ERROR [alert-event-bus-2] AlertReceivedListener:480 - Unable to process alert livy2_server_status for an invalid cluster named NGAD_MSE_AB_N1
12 Mar 2018 21:25:41,905 ERROR [alert-event-bus-2] AlertReceivedListener:480 - Unable to process alert datanode_process for an invalid cluster named NGAD_MSE_AB_N1
12 Mar 2018 21:25:41,905 ERROR [alert-event-bus-2] AlertReceivedListener:480 - Unable to process alert ambari_agent_version_select for an invalid cluster named NGAD_MSE_AB_N1
12 Mar 2018 21:25:41,905 ERROR [alert-event-bus-2] AlertReceivedListener:480 - Unable to process alert ams_metrics_monitor_process for an invalid cluster named NGAD_MSE_AB_N1
12 Mar 2018 21:25:41,905 ERROR [alert-event-bus-2] AlertReceivedListener:480 - Unable to process alert storm_supervisor_process for an invalid cluster named NGAD_MSE_AB_N1
12 Mar 2018 21:25:41,905 ERROR [alert-event-bus-2] AlertReceivedListener:480 - Unable to process alert spark2_thriftserver_status for an invalid cluster named NGAD_MSE_AB_N1
12 Mar 2018 21:25:41,906 ERROR [alert-event-bus-2] AlertReceivedListener:480 - Unable to process alert nfsgateway_process for an invalid cluster named NGAD_MSE_AB_N1
12 Mar 2018 21:25:41,906 ERROR [alert-event-bus-2] AlertReceivedListener:480 - Unable to process alert ambari_agent_disk_usage for an invalid cluster named NGAD_MSE_AB_N1
12 Mar 2018 21:25:41,906 ERROR [alert-event-bus-2] AlertReceivedListener:480 - Unable to process alert yarn_nodemanager_webui for an invalid cluster named NGAD_MSE_AB_N1
12 Mar 2018 21:25:41,906 ERROR [alert-event-bus-2] AlertReceivedListener:480 - Unable to process alert livy_server_status for an invalid cluster named NGAD_MSE_AB_N1
12 Mar 2018 21:25:41,907 ERROR [alert-event-bus-2] AlertReceivedListener:480 - Unable to process alert yarn_nodemanager_health for an invalid cluster named NGAD_MSE_AB_N1
12 Mar 2018 21:25:41,907 ERROR [alert-event-bus-2] AlertReceivedListener:480 - Unable to process alert flume_agent_status for an invalid cluster named NGAD_MSE_AB_N1
12 Mar 2018 21:25:41,907 ERROR [alert-event-bus-2] AlertReceivedListener:480 - Unable to process alert accumulo_tserver_process for an invalid cluster named NGAD_MSE_AB_N1
初步判定：应该是命名冲突，因为在上周六，2018.3.10搭建时使用相同集群名称。
解决方案：官网查看了对应的资料，其中有说重启agent节点，恢复，本地测试无效。
解决方案：删除 ambari cluster，然后重新搭建。