ZhijieYang commented on a change in pull request #17902:
URL: https://github.com/apache/flink/pull/17902#discussion_r759037380
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File path: docs/content.zh/docs/ops/metrics.md
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@@ -28,26 +28,26 @@ under the License.
# 指标
-Flink exposes a metric system that allows gathering and exposing metrics to
external systems.
+Flink 公开了一个指标系统，允许收集和公开指标给外部系统。
-## Registering metrics
+## 注册指标
-You can access the metric system from any user function that extends
[RichFunction]({{< ref "docs/dev/datastream/user_defined_functions"
>}}#rich-functions) by calling `getRuntimeContext().getMetricGroup()`.
-This method returns a `MetricGroup` object on which you can create and
register new metrics.
+你可以通过调用从 [RichFunction]({{< ref "docs/dev/datastream/user_defined_functions"
>}}#rich-functions)
+扩展的任何用户函数的 `getRuntimeContext().getMetricGroup()` 方法访问指标系统。
+此方法返回一个 `MetricGroup` 对象，你可以在该对象上创建和注册新指标。
-### Metric types
+## 指标类型
Review comment:
because I think `Registering metrics` and `Metric types` is on the same
level, and after reduce a `#` we can see the details of metric types like this:
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