是否可以为默认的Spring Boot 2指标定义其他标签? [英] Is it possible to define additional tags for default Spring Boot 2 metrics?

问题描述

最近我用Micrometer切换到了Spring Boot 2.当我获得这些闪亮的新指标时，我与我们的DevOps成员进行了交谈，然后开始将它们导出到Telegraf.

Recently I switched to Spring Boot 2 with Micrometer. As I got these shiny new metrics, I talked with our DevOps guys and we started exporting them to Telegraf.

为了区分不同的应用程序和应用程序节点，我们决定使用标签.这非常适合自定义指标，但现在我开始考虑预定义的指标.为了在默认指标上达到同样的效果，我还需要为它们添加额外的标签.

To distinguish between different applications and application nodes, we decided to use tags. This works perfectly for custom metrics, but now I started thinking about the pre-defined. To achieve the same for default metrics, I need an ability to add extra tags for them as well.

有可能实现这一目标吗?我这样做正确吗?

Is it possible to achieve this? Am I doing this right?

我尝试了下一种方法:

I tried next approach:

@Component
public class MyMetricsImpl implements MyMetrics {

    @Autowired
    protected MyProperties myProperties;
    @Autowired
    protected MeterRegistry meterRegistry;

    @PostConstruct
    public void initialize() {
        this.meterRegistry.config()
                .commonTags(commonTags());
    }

    @Override
    public List<Tag> commonTags() {
        List<Tag> tags = new ArrayList<>();
        tags.add(Tag.of("application", myProperties.getApplicationName()));
        tags.add(Tag.of("node", myProperties.getNodeName()));
        return tags;
    }
}

问题是我的指标正常运行，甚至某些Boot的指标(至少是http.server.requests)也可以看到我的标签.但是jvm.*，system.*，tomcat.*和许多其他标签仍然没有所需的标签.

The problem is that my metrics behave correctly and even some of the Boot's metrics (at least http.server.requests) see my tags. But jvm.*, system.*, tomcat.* and many others still don't have the needed tags.

推荐答案

如果您正在寻找通用标签支持，则可以通过注册MeterFilter来实现.

If you are looking for common tags support, you can do it by registering a MeterFilter doing it.

请参见此提交或使用即将推出的Spring Boot 2.1.0.M1 ，您可以使用以下属性:

With the upcoming Spring Boot 2.1.0.M1, you can use the following properties:

management.metrics.tags.*= # Common tags that are applied to every meter.

请参见

See the reference for details.

更新:

问题已更新，因此我使用基于MeterFilter的方法检查了更新后的问题，并确认其工作方式如下:

As the question has been updated, I checked the updated question with this MeterFilter-based approach and confirmed it's working as follows:

请求:http://localhost:8080/actuator/metrics/jvm.gc.memory.allocated

响应:

{
  "name" : "jvm.gc.memory.allocated",
  "measurements" : [ {
    "statistic" : "COUNT",
    "value" : 1.98180864E8
  } ],
  "availableTags" : [ {
    "tag" : "stack",
    "values" : [ "prod" ]
  }, {
    "tag" : "region",
    "values" : [ "us-east-1" ]
  } ]
}

我没有检查更新问题中提供的方法，但除非有任何理由坚持使用，否则我只会使用经过验证的基于MeterFilter的方法.

I didn't check the approach which has been provided in the updated question but I'd just use the proven MeterFilter-based approach unless there's any reason to stick with the approach.

第二次更新:

2nd UPDATED:

我研究了该方法，并能够使用此分支.

I looked into the approach and was able to reproduce it with this branch.

在某些地方已经注册了一些度量，现在在@PostConstruct中应用通用标签为时已晚. http.server.requests起作用的原因是它将在第一个请求中注册.尝试在

It's too late to apply common tags in @PostConstruct as some metrics have been registered already. The reason why http.server.requests works is that it will be registered with the first request. Try to put a breakpoint on the point of filters' application if you're interested in it.

简而言之，请尝试上述方法，该方法类似于即将推出的Spring Boot开箱即用支持.

In short, try the above approach which is similar to the upcoming Spring Boot out-of-box support.

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