Question

我已经使用Dropwizard实现了Java Web服务。现在，我希望它也公开Prometheus metrics。

我遵循了this非常简单的示例。但是，http://localhost:9090/metrics处的端点仍未公开。

以下是相关代码：

pom.xml中的依赖项：

    <dependency>
        <groupId>io.prometheus</groupId>
        <artifactId>simpleclient_dropwizard</artifactId>
        <version>0.5.0</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/io.prometheus/simpleclient_servlet -->
    <dependency>
        <groupId>io.prometheus</groupId>
        <artifactId>simpleclient_servlet</artifactId>
        <version>0.5.0</version>
    </dependency>

Java代码：

import io.dropwizard.Application;
import io.dropwizard.setup.Bootstrap;
import io.dropwizard.setup.Environment;
import io.prometheus.client.CollectorRegistry;
import io.prometheus.client.dropwizard.DropwizardExports;
import io.prometheus.client.exporter.MetricsServlet;
[...]

public class MyApplication extends Application<MyServiceConfiguration> {

@Override
public void run(final MyServiceConfiguration configuration,
        final Environment environment) {
    final MyServiceResource resource = createResource(configuration);
    environment.jersey().register(resource);

    registerHealthChecks(environment, resource);

    registerMetrics(environment);
}

private void registerMetrics(Environment environment) {
    CollectorRegistry collectorRegistry = new CollectorRegistry();
    collectorRegistry.register(new DropwizardExports(environment.metrics()));
    environment.admin().addServlet("metrics", new MetricsServlet(collectorRegistry))
            .addMapping("/metrics");
}

是否有任何指向我做错事情的指针？

Answer 1

请记住默认的dropwizard配置在另一个端口上具有管理应用程序。在那可以找到指标servlet。

在Dropwizard中公开Prometheus指标

1 个答案: