While CM UI is working, there is no heartbeat from CM hosts. I got the following error from /log/cloudera-scm-agent.log
[26/Nov/2025 11:51:34 +0100] 62213 MainThread agent WARNING Port is being used by CM Agent: 7182
[26/Nov/2025 11:51:34 +0100] 62213 MainThread agent ERROR Heartbeating to my_load_balancer:7182 failed.
Traceback (most recent call last):
File "/opt/cloudera/cm-agent/lib/python3.11/site-packages/cmf/agent.py", line 1682, in _send_heartbeat
response = self.requestor.request('heartbeat', heartbeat_data)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/cloudera/cm-agent/lib/python3.11/site-packages/avro/ipc.py", line 137, in request
return self.issue_request(call_request, message_name, request_datum)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/cloudera/cm-agent/lib/python3.11/site-packages/avro/ipc.py", line 251, in issue_request
call_response = self.transceiver.transceive(call_request)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/cloudera/cm-agent/lib/python3.11/site-packages/avro/ipc.py", line 487, in transceive
self.write_framed_message(request)
File "/opt/cloudera/cm-agent/lib/python3.11/site-packages/avro/ipc.py", line 506, in write_framed_message
self.conn.request(req_method, self.req_resource, req_body, req_headers)
File "/usr/lib64/python3.11/http/client.py", line 1303, in request
self._send_request(method, url, body, headers, encode_chunked)
File "/usr/lib64/python3.11/http/client.py", line 1349, in _send_request
self.endheaders(body, encode_chunked=encode_chunked)
File "/usr/lib64/python3.11/http/client.py", line 1298, in endheaders
self._send_output(message_body, encode_chunked=encode_chunked)
File "/usr/lib64/python3.11/http/client.py", line 1097, in _send_output
self.send(chunk)
File "/usr/lib64/python3.11/http/client.py", line 1019, in send
self.sock.sendall(data)
ConnectionResetError: [Errno 104] Connection reset by peer
#######################################################
This is my Haproxy Configuration:
frontend cm-ui
bind *:7183 ssl crt /haproxy-all.key
default_backend cmservers
frontend cm-agents
bind *:7182 ssl crt /haproxy-all.key
default_backend cmagents
backend cmservers
# Main
# -----
description "BACKEND-CMSERVERS"
mode http
option forwardfor
balance roundrobin
server cm-1:7183 check ssl verify none crt /haproxy-all.key
server cm-2:7183 check backup ssl verify none crt /haproxy-all.key
backend cmagents
# Main
# -----
description "BACKEND CM-AGENTS"
mode http
option forwardfor
balance roundrobin
server cm-1:7182 check ssl verify none crt /haproxy-all.key
server cm-2:7182 check backup ssl verify none crt /haproxy-all.key
##################################################
Does someone have an idea please?
Many thanks!
