[GitHub] Tom-Goong opened a new pull request #7820: [FLINK-11742][Metrics]Push metrics to Pushgateway without "instance"

[GitBox <gi...@apache.org>]

Tom-Goong opened a new pull request #7820: [FLINK-11742][Metrics]Push metrics to Pushgateway without "instance"
URL: https://github.com/apache/flink/pull/7820
 
 
   ## What is the purpose of the change
   when sending a metric to Prometheus Pushgateway, you need to give an "instance" message.
   In actual use, after there is no "instance", Prometheus stores metrics with problems, metrics are not continuous, and a lot of data is lost. 
   
   ## Brief change log
   * Added a map containing the instance value in PrometheusPushGatewayReporter
   
   ## 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**, restore state when failover using RestartPipelinedRegionStrategy.
   * The S3 file system connector: **no**
   
   ## Documentation
   * Does this pull request introduce a new feature? **yes**

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