Is it possible to run Node exporter on a diffrent port

[naveenkumarsp]

Is it possible to run the node exporter on a different port?

I have the requirement to run the node exporter on a different port number i.e e.g.: I want to use 9095 instead of 9091 since it's already being used by Couchbase.
I couldn't find any way to configure this in the Grafana agent node exporter configuration

https://grafana.com/docs/agent/latest/static/configuration/integrations/node-exporter-config/

Is there any way we can pass the configuration --web.listen-address=:9095 to the node exporter?

[rfratto]

The node_exporter integration doesn't have its own server unlike the full version of node_exporter. Rather, it's exposed from the agent's HTTP server.

For installations of the agent using the Linux system packages, you can go to /etc/default/grafana-agent (on Debian-based systems) or /etc/sysconfig/grafana-agent (on RedHat-based systems) to change the ports in the CUSTOM_ARGS field.

[naveenkumarsp]

I am but confused, here is what i am observing while i am trying to run the grafana agent on the machine.

May 08 04:01:56 lxubuntu01 grafana-agent[611]: ts=2023-05-08T04:01:56.384946064Z caller=main.go:71 level=error msg="error creating the agent server entrypoint" err="creating gRPC listener: listen tcp 127.0.0.1:9091: bind: add
May 08 04:01:56 lxubuntu01 systemd[1]: grafana-agent.service: Main process exited, code=exited, status=1/FAILURE
May 08 04:01:56 lxubuntu01 systemd[1]: grafana-agent.service: Failed with result 'exit-code'.
May 08 04:01:56 lxubuntu01 systemd[1]: grafana-agent.service: Service hold-off time over, scheduling restart.
May 08 04:01:56 lxubuntu01 systemd[1]: grafana-agent.service: Scheduled restart job, restart counter is at 1.
May 08 04:01:56 lxubuntu01 systemd[1]: Stopped Monitoring system and forwarder.
May 08 04:01:56 lxubuntu01 systemd[1]: Started Monitoring system and forwarder.
May 08 04:01:56 lxubuntu01 grafana-agent[651]: ts=2023-05-08T04:01:56.763400682Z caller=main.go:71 level=error msg="error creating the agent server entrypoint" err="creating gRPC listener: listen tcp 127.0.0.1:9091: bind: add
May 08 04:01:56 lxubuntu01 systemd[1]: grafana-agent.service: Main process exited, code=exited, status=1/FAILURE
May 08 04:01:56 lxubuntu01 systemd[1]: grafana-agent.service: Failed with result 'exit-code'.
May 08 04:01:56 lxubuntu01 systemd[1]: grafana-agent.service: Service hold-off time over, scheduling restart.
May 08 04:01:56 lxubuntu01 systemd[1]: grafana-agent.service: Scheduled restart job, restart counter is at 2.
May 08 04:01:56 lxubuntu01 systemd[1]: Stopped Monitoring system and forwarder.
May 08 04:01:56 lxubuntu01 systemd[1]: Started Monitoring system and forwarder.
May 08 04:01:57 lxubuntu01 grafana-agent[687]: ts=2023-05-08T04:01:57.009678712Z caller=main.go:71 level=error msg="error creating the agent server entrypoint" err="creating gRPC listener: listen tcp 127.0.0.1:9091: bind: add
May 08 04:01:57 lxubuntu01 systemd[1]: grafana-agent.service: Main process exited, code=exited, status=1/FAILURE
May 08 04:01:57 lxubuntu01 systemd[1]: grafana-agent.service: Failed with result 'exit-code'.
May 08 04:01:57 lxubuntu01 systemd[1]: grafana-agent.service: Service hold-off time over, scheduling restart.
May 08 04:01:57 lxubuntu01 systemd[1]: grafana-agent.service: Scheduled restart job, restart counter is at 3.
May 08 04:01:57 lxubuntu01 systemd[1]: Stopped Monitoring system and forwarder.
May 08 04:01:57 lxubuntu01 systemd[1]: Started Monitoring system and forwarder.
May 08 04:01:57 lxubuntu01 grafana-agent[721]: ts=2023-05-08T04:01:57.255103054Z caller=main.go:71 level=error msg="error creating the agent server entrypoint" err="creating gRPC listener: listen tcp 127.0.0.1:9091: bind: add
May 08 04:01:57 lxubuntu01 systemd[1]: grafana-agent.service: Main process exited, code=exited, status=1/FAILURE
May 08 04:01:57 lxubuntu01 systemd[1]: grafana-agent.service: Failed with result 'exit-code'.
May 08 04:01:57 lxubuntu01 systemd[1]: grafana-agent.service: Service hold-off time over, scheduling restart.
May 08 04:01:57 lxubuntu01 systemd[1]: grafana-agent.service: Scheduled restart job, restart counter is at 4.
May 08 04:01:57 lxubuntu01 systemd[1]: Stopped Monitoring system and forwarder.
May 08 04:01:57 lxubuntu01 systemd[1]: Started Monitoring system and forwarder.
May 08 04:01:57 lxubuntu01 grafana-agent[757]: ts=2023-05-08T04:01:57.528677868Z caller=main.go:71 level=error msg="error creating the agent server entrypoint" err="creating gRPC listener: listen tcp 127.0.0.1:9091: bind: add
May 08 04:01:57 lxubuntu01 systemd[1]: grafana-agent.service: Main process exited, code=exited, status=1/FAILURE
May 08 04:01:57 lxubuntu01 systemd[1]: grafana-agent.service: Failed with result 'exit-code'.
May 08 04:01:57 lxubuntu01 systemd[1]: grafana-agent.service: Service hold-off time over, scheduling restart.
May 08 04:01:57 lxubuntu01 systemd[1]: grafana-agent.service: Scheduled restart job, restart counter is at 5.
May 08 04:01:57 lxubuntu01 systemd[1]: Stopped Monitoring system and forwarder.
May 08 04:01:57 lxubuntu01 systemd[1]: grafana-agent.service: Start request repeated too quickly.
May 08 04:01:57 lxubuntu01 systemd[1]: grafana-agent.service: Failed with result 'exit-code'.```

[rfratto]

May 08 04:01:57 lxubuntu01 grafana-agent[757]: ts=2023-05-08T04:01:57.528677868Z caller=main.go:71 level=error msg="error creating the agent server entrypoint" err="creating gRPC listener: listen tcp 127.0.0.1:9091: bind: add

I can't see the whole log line here, but 9091 is coming from the gRPC listener port from the environment file.