cloudera server与agent失连问题

#该主机已与 Cloudera Manager Server 未建立联系
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#该主机已与 Cloudera Manager Server 未建立联系

server端monitor服务正常agent连不上
#该主机已与 Cloudera Manager Server 建立联系。 该主机未与 Host Monitor 建立联系。
[20/Feb/2020 16:51:51 +0000] 22086 MonitorDaemon-Reporter firehoses INFO Creating a connection to the ACTIVITYMONITOR.
[20/Feb/2020 16:51:51 +0000] 22086 MonitorDaemon-Reporter firehoses INFO Creating a connection to the SERVICEMONITOR.
[20/Feb/2020 16:51:51 +0000] 22086 MonitorDaemon-Reporter firehoses INFO Creating a connection to the HOSTMONITOR.
[20/Feb/2020 16:51:51 +0000] 22086 MonitorDaemon-Reporter throttling_logger ERROR Error sending messages to firehose: mgmt-HOSTMONITOR-d592ed6aea0516a09027c2cf834d8979
Traceback (most recent call last):
File “/opt/cloudera/cm-agent/lib/python2.7/site-packages/cmf/monitor/firehose.py”, line 121, in _send
self._port)
File “/opt/cloudera/cm-agent/lib/python2.7/site-packages/avro/i