kaibozhou opened a new pull request #9517: [FLINK-13779][metrics] PrometheusPushGatewayReporter support push metrics with groupingKey URL: https://github.com/apache/flink/pull/9517 ## What is the purpose of the change The pushgateway already support send metrics with [groupingKey](https://prometheus.github.io/client_java/io/prometheus/client/exporter/PushGateway.html#push-io.prometheus.client.CollectorRegistry-java.lang.String-java.util.Map-), PrometheusPushGatewayReporter can support push metrics with groupingKey, which will be convenient for users to identify, group or filter their metrics. ## Brief change log - *parser groupingKey from user's config: k1=v1,k2=v2 to Map<String, String>* - *Use PushGateway Java SDK to push with groupingKey* - *Use PushGateway Java SDK to delete with groupingKey** ## Verifying this change Run *PrometheusPushGatewayReporterTest* to verify the groupingKey config. ## Does this pull request potentially affect one of the following parts: - Dependencies (does it add or upgrade a dependency): (no) - The public API, i.e., is any changed class annotated with `@Public(Evolving)`: (no) - The serializers: (no) - The runtime per-record code paths (performance sensitive): (no) - Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Yarn/Mesos, ZooKeeper: (no) - The S3 file system connector: (no) ## Documentation - Does this pull request introduce a new feature? (yes) - If yes, how is the feature documented? (docs will auto generated)
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