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Avoiding Prometheus call all instances of k8s service (only one, app-wide metrics collection)


By : Rose
Date : July 30 2020, 08:00 PM
this one helps. This implies the metrics are coming from some kind of backend database rather than a usual in-process exporter. Move the metrics endpoint to a new service connected to the same DB and only run one copy of it.
code :


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Grafana is not able to get Prometheus metrics although Prometheus Datasource is validated successfully


By : user5841392
Date : March 29 2020, 07:55 AM
it should still fix some issue It looks like you are pointing towards the node exporter endpoint and not Prometheus Server. The default Prometheus Server endpoint is 9090. Try change your source to http://192.168.33.22:9090
Grafana doesn't query Node Exporter directly, it queries Prometheus Server which gathers the time series statistics.

How do you configure prometheus.yml file to collect Prometheus metrics in a Spring-Boot application?


By : Pamela González
Date : March 29 2020, 07:55 AM
I wish this help you As you are using Spring boot, you can use the following Prometheus maven dependencies
code :
<dependency>
            <groupId>io.prometheus</groupId>
            <artifactId>simpleclient_spring_boot</artifactId>
            <version>0.0.17</version>
        </dependency>

        <dependency>
            <groupId>io.prometheus</groupId>
            <artifactId>simpleclient_hotspot</artifactId>
            <version>0.0.17</version>
        </dependency>

        <dependency>
            <groupId>io.prometheus</groupId>
            <artifactId>simpleclient_servlet</artifactId>
            <version>0.0.17</version>
        </dependency>
@Configuration
public class MonitoringConfig {

    @Bean
    SpringBootMetricsCollector springBootMetricsCollector(Collection<PublicMetrics> publicMetrics) {

        SpringBootMetricsCollector springBootMetricsCollector = new SpringBootMetricsCollector(publicMetrics);
        springBootMetricsCollector.register();

        return springBootMetricsCollector;
    }

    @Bean
    ServletRegistrationBean servletRegistrationBean() {
        DefaultExports.initialize();
        return new ServletRegistrationBean(new MetricsServlet(), "/prometheus");
    }
}

Why Flink uses the Pushgateway instead of Prometheus's usual pull model for general metrics collection?


By : john
Date : March 29 2020, 07:55 AM

Should Prometheus Java simpleclient Custom Collector metrics be instantiated on every collection?


By : user3510488
Date : March 29 2020, 07:55 AM
I wish this helpful for you Yes, MetricFamilies should (almost) always be instantiated anew on each collect.

How to use federation to collect Prometheus' metrics from multiple Prometheus instances (each using instance="local


By : Dan Nordin
Date : March 29 2020, 07:55 AM
wish of those help What you need to do here is to specify unique external_labels on each of the datacenter Prometheus servers. This will cause them to add those labels on the /federate endpoint, and prevent the clashing time series you're running into.
My blog post on federating Prometheus has an example in a case like this: http://www.robustperception.io/scaling-and-federating-prometheus/
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