Github user zentol commented on a diff in the pull request:
https://github.com/apache/flink/pull/3736#discussion_r112065330
--- Diff: docs/monitoring/metrics.md ---
@@ -436,6 +436,38 @@ metrics.reporter.stsd.port: 8125
{% endhighlight %}
+### Datadog (org.apache.flink.metrics.datadog.DatadogHttpReporter)
+
+In order to use this reporter you must copy
`/opt/flink-metrics-datadog-{{site.version}}.jar` into the `/lib` folder
+of your Flink distribution.
+
+Parameters:
+
+- `apikey` - the Datadog API key
+- `tags` - (optional) the global tags that will be applied to metrics when
sending to Datadog. Tags should be separated by comma only
+
+Example configuration:
+
+{% highlight yaml %}
+
+metrics.reporters: dghttp
+metrics.reporter.dghttp.class:
org.apache.flink.metrics.datadog.DatadogHttpReporter
+metrics.reporter.dghttp.apikey: xxx
+metrics.reporter.dghttp.tags: myflinkapp,prod
+
+// <host>, <job_name>, <tm_id>, <subtask_index>, <task_name>,
<operator_name> will be sent to Datadog as tags
+metrics.scope.jm: <host>.jobmanager
+metrics.scope.jm.job: <host>.<job_name>.jobmanager.job
+metrics.scope.tm: <host>.<tm_id>.taskmanager
+metrics.scope.tm.job: <host>.<tm_id>.<job_name>.taskmanager.job
+metrics.scope.task:
<host>.<tm_id>.<job_name>.<subtask_index>.<task_name>.task
+metrics.scope.operator:
<host>.<tm_id>.<job_name>.<subtask_index>.<operator_name>.operator
+
+{% endhighlight %}
+
+Such metric reporting implementation is a best practice based on our
experience working with Datadog. It helps
--- End diff --
Please remove this, it doesn't belong in the documentation.
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