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  1. Cloudron Forum
  2. Prometheus
  3. What port do Prometheus listen on, for Grafana to connect?

What port do Prometheus listen on, for Grafana to connect?

Scheduled Pinned Locked Moved Prometheus
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  • jamesJ james

    Installed on the demo server, Prometheus https://pm.demo.cloudron.io and Grafana https://grafa.demo.cloudron.io

    Added Prometheus as a new data source and used basic auth.

    image.png

    Save and test:
    58861462-77d0-4cb2-b45a-9e7b9129d5de-image.png

    You can check it out https://my.demo.cloudron.io/ cloudron:cloudron as the login and Grafana default admin is admin:admin.

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    stoccafisso
    wrote last edited by
    #6

    Hi @james

    Now I see, it was just to skip the port 9090 behind URL. I didn't even consider it possible. Thank you, it worked now 🙂

    jamesJ 1 Reply Last reply
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    • S stoccafisso

      Hi @james

      Now I see, it was just to skip the port 9090 behind URL. I didn't even consider it possible. Thank you, it worked now 🙂

      jamesJ Offline
      jamesJ Offline
      james
      Staff
      wrote last edited by
      #7

      @stoccafisso Happy to help.

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        stoccafisso
        wrote last edited by
        #8

        But now I experience another problem. Grafana doesnt seem to condsider the new modified prometheus config file. Is there some cache stored in Grafana, or Prometheus, that I need to clear out in order for those two to see the new config file?

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          stoccafisso
          wrote last edited by
          #9

          Ahh...in Prometheus, just click "Status - Service discovery"

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            stoccafisso
            wrote last edited by
            #10

            You may set it to "solved" 👍

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              stoccafisso
              wrote last edited by stoccafisso
              #11

              Hmm....Grafana seems not to pick up on the new sources. And I cant find any refresh/reload button in Grafana. Any advice?

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              • S stoccafisso

                Hmm....Grafana seems not to pick up on the new sources. And I cant find any refresh/reload button in Grafana. Any advice?

                jamesJ Offline
                jamesJ Offline
                james
                Staff
                wrote last edited by
                #12

                @stoccafisso when changing config files inside an app, it is always a good idea to restart the app.
                Did you do that?

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                  stoccafisso
                  wrote last edited by
                  #13

                  Yes, restarted both after updating "Status - Service discovery" in Prometheus. Even deleted the "prometheus" in Grafana and loaded a new one. It did not pick up on the new services in Prometheus

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                    stoccafisso
                    wrote last edited by
                    #14

                    screenshot-prometheus.dnfi.no-2025.05.26-17_25_10.png

                    As you see, I have two new endpoints recogniced by Prometheus, but Grafana will not pick up that information

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                      stoccafisso
                      wrote last edited by
                      #15

                      screenshot-grafana.dnfi.no-2025.05.26-17_29_23.png

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                      • jamesJ Offline
                        jamesJ Offline
                        james
                        Staff
                        wrote last edited by
                        #16

                        Can you push the metrics to the demo instance as well so I can take a look?

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                        • jamesJ Offline
                          jamesJ Offline
                          james
                          Staff
                          wrote last edited by
                          #17

                          Also, inside Grafana, for the Prometheus Data source.
                          There is a pre-made dashboard for Prometheus:

                          image.png
                          Import it, and please view it so see, if you get any data at all.

                          0efe1553-de04-4409-980d-a7b8fc6c6917-image.png

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                            stoccafisso
                            wrote last edited by stoccafisso
                            #18

                            I did a brutal problemsolving hack, deleted Grafana and reinstalled it. Now it works.

                            I think it may have been the "Node Exporter Full" dashboard that was holding the old config in cache, I may have solved it just by deleting the Node Exporter Full and then reinstalled it.

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                            • jamesJ james

                              Can you push the metrics to the demo instance as well so I can take a look?

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                              stoccafisso
                              wrote last edited by
                              #19

                              @james How do I do that? And is it needed? I have solved the problem?

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                              • S stoccafisso

                                @james How do I do that? And is it needed? I have solved the problem?

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                                james
                                Staff
                                wrote last edited by
                                #20

                                @stoccafisso no, that is no longer needed since you have solved your issue.

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                                • jamesJ james

                                  @stoccafisso no, that is no longer needed since you have solved your issue.

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                                  stoccafisso
                                  wrote last edited by
                                  #21

                                  @james and @joseph Thanks for helping 👍

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