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Posted to notifications@dubbo.apache.org by "wxbty (via GitHub)" <gi...@apache.org> on 2023/03/13 08:56:56 UTC

[GitHub] [dubbo] wxbty opened a new pull request, #11806: add nop for prometheus metrics

wxbty opened a new pull request, #11806:
URL: https://github.com/apache/dubbo/pull/11806

   ## What is the purpose of the change
   
   When metric switch is turned on and the micrometer-core package is not imported separately, a NoClassFound exception will occur.
   
   ## Brief changelog
   
   Use NOP to guide users to introduce the micrometer-core package instead of integrating it in dubbo-all
   
   exception stack：
   ![image](https://user-images.githubusercontent.com/38374721/224652279-e391eefd-a793-4a96-9341-311db97636c5.png)
   
   NOP display effect：
   ```java
   2023-03-13 16:47:34.127  INFO 11652 --- [           main] o.a.d.c.deploy.DefaultModuleDeployer     :  [DUBBO] Dubbo Module[1.1.0] has been initialized!, dubbo version: 3.2.0-beta.6-SNAPSHOT, current host: 10.201.67.59
   2023-03-13 16:47:34.138  INFO 11652 --- [           main] o.a.d.c.deploy.DefaultModuleDeployer     :  [DUBBO] Dubbo Module[1.1.1] has been initialized!, dubbo version: 3.2.0-beta.6-SNAPSHOT, current host: 10.201.67.59
   2023-03-13 16:47:36.271 ERROR 11652 --- [           main] a.d.m.p.PrometheusMetricsReporterFactory :  [DUBBO] Failed to load class "org.apache.dubbo.metrics.prometheus.PrometheusMetricsReporter"., dubbo version: 3.2.0-beta.6-SNAPSHOT, current host: 10.201.67.59
   2023-03-13 16:47:36.274 ERROR 11652 --- [           main] a.d.m.p.PrometheusMetricsReporterFactory :  [DUBBO] Defaulting to no-operation (NOP) metricsReporter implementation, dubbo version: 3.2.0-beta.6-SNAPSHOT, current host: 10.201.67.59
   2023-03-13 16:47:36.274 ERROR 11652 --- [           main] a.d.m.p.PrometheusMetricsReporterFactory :  [DUBBO] Introduce the micrometer-core package to use the ability of metrics, dubbo version: 3.2.0-beta.6-SNAPSHOT, current host: 10.201.67.59
   2023-03-13 16:47:36.327  INFO 11652 --- [           main] o.a.d.c.d.DefaultApplicationDeployer     :  [DUBBO] No value is configured in the registry, the MetadataReportFactory extension[name : zookeeper] supports as the metadata center, dubbo version: 3.2.0-beta.6-SNAPSHOT, current host: 10.201.67.59
   2023-03-13 16:47:36.328  INFO 11652 --- [           main] o.a.d.c.d.DefaultApplicationDeployer     :  [DUBBO] The registry[<dubbo:registry address="zookeeper://127.0.0.1:2181" protocol="zookeeper" port="2181" />] will be used as the metadata center, dubbo version: 3.2.0-beta.6-SNAPSHOT, current host: 10.201.67.59
   2023-03-13 16:47:36.339  INFO 11652 --- [           main] o.a.d.c.d.DefaultApplicationDeployer     :  [DUBBO] use registry as metadata-center: <dubbo:metadata-report address="zookeeper://127.0.0.1:2181" protocol="zookeeper" port="2181" parameters="{client=null}" />, dubbo version: 3.2.0-beta.6-SNAPSHOT, current host: 10.201.67.59
   ```
   
   


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