How to integrate Prometheus Fetcher Plugin #12844

Ascone82Maestro · 2024-12-09T15:13:54Z

Ascone82Maestro
Dec 9, 2024

Hi,
I need support to integrate Prometheus Fetcher Plugin.
I've already copied prometheus-fetcher-plugin-9.2.0.jar (renamed as fetcher-prometheus.jar) under the folder /skywalking/oap-libs and the logs confirm the module is ok:

2024-12-09 15:10:48,016 org.apache.skywalking.oap.server.starter.config.ApplicationConfigLoader 78 [main] INFO [] - Get a module define from application.yml, module name: fetcher-prometheus
2024-12-09 15:10:48,016 org.apache.skywalking.oap.server.starter.config.ApplicationConfigLoader 82 [main] INFO [] - Get a provider define belong to fetcher-prometheus module, provider name: prometheus

but the skywalking-oap pods restarts after this:

2024-12-09 15:10:54,974 org.apache.skywalking.oap.server.starter.OAPServerBootstrap 64 [main] ERROR [] - [10.1.0-d28dfea] [fetcher-prometheus] missing.
org.apache.skywalking.oap.server.library.module.ModuleNotFoundException: [fetcher-prometheus] missing.
at org.apache.skywalking.oap.server.library.module.ModuleManager.init(ModuleManager.java:70) ~[library-module-10.1.0.jar:10.1.0]
at org.apache.skywalking.oap.server.starter.OAPServerBootstrap.start(OAPServerBootstrap.java:52) [server-starter-10.1.0.jar:10.1.0]
at org.apache.skywalking.oap.server.starter.OAPServerStartUp.main(OAPServerStartUp.java:23) [server-starter-10.1.0.jar:10.1.0]

I think there is an issue about the way I define the module in the application.yml:

fetcher-prometheus:
selector: ${SW_PROMETHEUS_FETCHER:-default}
default:
prometheus:
active: true
targets:
- url: "http://apache-apisix-prometheus-metrics:9091/apisix/prometheus/metrics"
labels:
job: apisix
rules-path: ${SW_PROMETHEUS_FETCHER_RULES_PATH:/skywalking/config/apisix-metrics-rule.yaml}
fetchFailureRetrySecond: ${SW_PROMETHEUS_FETCHER_FETCH_FAILURE_RETRY_SECOND:10}

Please, cloud you helm me to define correctly this section? Thanks.