search

prometheus / graphite_exporter

Server that accepts metrics via the Graphite protocol and exports them as Prometheus metrics
Apache License 2.0
352 stars 100 forks source link

Document scenarios for sending graphite metrics to graphite_exporter #74

Open idling11 opened 5 years ago

idling11 commented 5 years ago

Hi all: I tried graphite_exporter for the first time. I have graphite and graphite_exporter running on different hosts already, but how can i send the metrics which graphite received to the graphite_exporter? Is there a way to config this or must i write codes to achieve this goal ? In graphite , I only run carbon-cache. should I run carbon-relay or carbon-agg to send metrics to graphite_exporter?

can someone tell me how to do it ? appreciate it

matthiasr commented 5 years ago

Yes, how you send metrics to the exporter is up to you. You can do this in your code, or use carbon-relay. For the best results, I would recommend running the exporter and (if necessary) carbon-relay as sidecars, that is, local to each application instance:

+-----------------------------------------------------+
|                                                     |
|                                                     |
|      host/VM/pod                                    |
|                                                     |
|                                                     |
|                                                     |
|                                                     |
|    +----------------------------------------+       |
|    |                                        |       |
|    |                                        |       |
|    |      Application                       |       |
|    |                                        |       |
|    |                                        |       |
|    +------------------+---------------------+       |                                                                   +---------------------------------------------------+
|                       |                             |                                                                   |                                                   |
|                       |                             |                                                                   |                                                   |
|                       |                             |                                                                   |                                                   |
|                       v                             |                                                                   |                                                   |
|                                                     |                                                                   |                                                   |
|    +----------------------------------------+       |                                                                   |            Graphite                               |
|    |                                        |       |                                                                   |                                                   |
|    |    carbon-relay                        +-------------------------------------------------------------------------> |                                                   |
|    |                                        |       |                                                                   |                                                   |
|    +------------------+---------------------+       |                                                                   |                                                   |
|                       |                             |                                                                   |                                                   |
|                       |                             |                                                                   |                                                   |
|                       |                             |                                                                   |                                                   |
|                       v                             |                                                                   +---------------------------------------------------+
|                                                     |
|    +----------------------------------------+       |
|    |                                        |       |
|    |     graphite_exporter                  | <---------------------------------------+
|    |                                        |       |                                 |                                 ----------------------------------------------------+
|    +----------------------------------------+       |                                 |                                 |                                                   |
|                                                     |                                 |                                 |                                                   |
|                                                     |                                 |                                 |                                                   |
|                                                     |                                 |                                 |                                                   |
+-----------------------------------------------------+                                 |                                 |                                                   |
                                                                                        |                                 |           Prometheus                              |
                                                                                        +---------------------------------+                                                   |
                                                                                                                          |                                                   |
                                                                                                                          |                                                   |
                                                                                                                          |                                                   |
                                                                                                                          |                                                   |
                                                                                                                          |                                                   |
                                                                                                                          +---------------------------------------------------+

This gets you better (per-instance) metrics in a Prometheus-native way. Additionally, by tying the metric producer and the exporter together, you avoid a few classes of issues with inconsistent metrics.

matthiasr commented 5 years ago

I think this could be explained better in the README. I'll update the issue title to reflect that.

idling11 commented 5 years ago

@matthiasr thank you very much for your detailed answers and I also think that this information needs to be added to the README. I will try it and consult with you if i have any question.