CDH前端CM监控不正常（未解决）
Request to the Service Monitor failed. This may cause slow page responses. View the status of the Service Monitor.
Request to the Host Monitor failed. This may cause slow page responses. View the status of the Host Monitor.
- Unable to issue query: the Host Monitor is not running
检查event server 日志
[root@ip-xxx cloudera-scm-eventserver]# pwd /var/log/cloudera-scm-eventserver [root@ip-xxx cloudera-scm-eventserver]# tail -f -n 1000 mgmt-cmf-mgmt-EVENTSERVER-ip-xxx.out
日志显示
2018-06-14 22:01:34,393 INFO com.cloudera.enterprise.ssl.SSLFactory: Using configured truststore for verification of server certificates in HTTPS communication. 2018-06-14 22:01:34,814 INFO com.cloudera.cmf.BasicScmProxy: Using encrypted credentials for SCM 2018-06-14 22:01:34,906 INFO com.cloudera.cmf.BasicScmProxy: Authenticated to SCM. 2018-06-14 22:01:34,919 INFO com.cloudera.cmf.BasicScmProxy: Authentication to SCM required. 2018-06-14 22:01:34,919 WARN com.cloudera.cmf.eventcatcher.server.EventCatcherService: No descriptor fetched from https://xxx:7183 on after 1 tries, sleeping... 2018-06-14 22:01:36,990 INFO com.cloudera.cmf.BasicScmProxy: Using encrypted credentials for SCM 2018-06-14 22:01:37,092 INFO com.cloudera.cmf.BasicScmProxy: Authenticated to SCM. 2018-06-14 22:01:37,102 INFO com.cloudera.cmf.BasicScmProxy: Authentication to SCM required. 2018-06-14 22:01:37,102 WARN com.cloudera.cmf.eventcatcher.server.EventCatcherService: No descriptor fetched from https://xxx:7183 on after 2 tries, sleeping... 2018-06-14 22:01:39,169 INFO com.cloudera.cmf.BasicScmProxy: Using encrypted credentials for SCM 2018-06-14 22:01:39,255 INFO com.cloudera.cmf.BasicScmProxy: Authenticated to SCM. 2018-06-14 22:01:39,264 INFO com.cloudera.cmf.BasicScmProxy: Authentication to SCM required. 2018-06-14 22:01:39,264 WARN com.cloudera.cmf.eventcatcher.server.EventCatcherService: No descriptor fetched from https://xxx:7183 on after 3 tries, sleeping... 2018-06-14 22:01:41,340 INFO com.cloudera.cmf.BasicScmProxy: Using encrypted credentials for SCM 2018-06-14 22:01:41,437 INFO com.cloudera.cmf.BasicScmProxy: Authenticated to SCM. 2018-06-14 22:01:41,446 INFO com.cloudera.cmf.BasicScmProxy: Authentication to SCM required. 2018-06-14 22:01:41,447 WARN com.cloudera.cmf.eventcatcher.server.EventCatcherService: No descriptor fetched from https://xxx:7183 on after 4 tries, sleeping... 2018-06-14 22:01:43,512 INFO com.cloudera.cmf.BasicScmProxy: Using encrypted credentials for SCM 2018-06-14 22:01:43,606 INFO com.cloudera.cmf.BasicScmProxy: Authenticated to SCM. 2018-06-14 22:01:43,619 INFO com.cloudera.cmf.BasicScmProxy: Authentication to SCM required. 2018-06-14 22:01:43,619 WARN com.cloudera.cmf.eventcatcher.server.EventCatcherService: No descriptor fetched from https://ip-172-31-2-173.cn-north-1.compute.internal:7183 on after 5 tries, sleeping... 2018-06-14 22:01:45,620 ERROR com.cloudera.cmf.eventcatcher.server.EventCatcherService: Could not fetch descriptor after 5 tries, exiting.
原因是我们使用的企业版的license过期，导致Cloudera Navigator不能使用，我们在TLS这里设置的等级涉及到收费功能，license过期导致不生效。
