Does using #RefreshScope annotation generates any metrics in springboot which can be visualised in grafana or prometheus?
Once you have this enabled, the configuration refresh is automatically enabled via "/actuator/refresh" endpoint. This traffic should be automatically captured by prometheus. I dont have it setup locally, but query to get total count would be something like:
http_server_requests_seconds_count{method="GET",status="200",uri="/actuator/refresh",}
update adding official documentation from comment:
Official Documentation
Related
I have a non boot spring application with micrometer integrated. Right now we are pushing these metrics to the logging file using LoggingRegistry.
We want to enhance this project to expose these metrics in the Rest API(we cannot use actuator as turning ON auto configuration is causing issues in our non boot application).Is there any way to expose these metrics which are automatically provided by the micrometer in the Rest API?
Any example will be appreciated?
You can add PrometheusMeterRegistry, it is for this use case, see the docs: https://micrometer.io/docs/registry/prometheus
I have a Spring Boot based short-live service.
Until now, I used PushGateway to send metrics to Prometheus.
I encountered this repository and I'm trying to understand how do I setup the proxy. It's not clear from the docs.
Thanks
I have services built in spring boot 2.0.2. I`m using redis and solrj.
Now if i want to get metrics of redis and solr. It don`t show in
http://localhost:8080/actuator/metrics
Is there any way e.g making custom endpoint to get redis and solr metrics?
Any help would be appreciated..
Yes, it should be possible.
Spring boot 2's default metrics framework is Micrometer
When this framework is integrated into spring boot application (via starter as usual), any metrics reported to micrometer will immediately appear in spring boot actuator.
So the question is whether the redis/solrj integration expose Metrics or not.
If they are not, you'll have to understand what exactly you want to measure and plug in the integration.
Here is the example:
import io.micrometer.core.annotation;
#Timed("my-redis-calls")
public void doSomethingInMyCode() {
//call redis here
}
Of course, there is also a programmatic interface, using annotations in not mandatory
The code shown in Mark Bramnik's answer doesn't specifically give you timing for Redis client calls, it gives you timing for doSomethingInMyCode method, which can be different.
Micrometer support seems to be available in the Lettuce 6.1 release.
MeterRegistry meterRegistry = …;
MicrometerOptions options = MicrometerOptions.create();
ClientResources resources = ClientResources.builder().commandLatencyRecorder(new MicrometerCommandLatencyRecorder(meterRegistry, options)).build();
RedisClient client = RedisClient.create(resources);
https://lettuce.io/core/release/reference/index.html#command.latency.metrics.micrometer
I am trying to get Production metrics for my application. I am using Actuator on top of Spring Boot. Actuator exposes an endpoint for that "/metrics". I have Autowired CounterService class to get my own metrics data. I will be displaying the metrics data in one of our Application Management UI. The problem here is that I don't want all the default metrics data, as the Response JSON given back by the /metrics endpoint is kind off heavy for me to parse and most of the default metrics data are useless for me and give it to the UI. I have gone through the Spring Docs, I didn't get any help.
Appreciate your help on this!
Oh So I found a way to deal with the scenario. Actually Spring This GitHub Link pretty much solves my problem. Actuator Supports Reqex support to query for the data you need. So my url looks like this now : http://{{hostname}}/metrics/counter.*.count instead of this http://{{hostname}}/metrics/. Hope this helps.
Have you tried wrapping the response class from metrics, with a Custom class?
I have a Spring Boot REST service application. This application uses Spring Actuator to display metrics and health information. How can I aggregate this information from two or more containers running the same application?
You need to export the metrics to a central system.
Spring Boot provides a couple of implementations of a marker interface
called Exporter which can be used to copy metric readings from the
in-memory buffers to a place where they can be analyzed and displayed.
More specifically personally I like exporting metrics to statsD
To export metrics to Statsd, make sure first that you have added
com.timgroup:java-statsd-client as a dependency of your project
(Spring Boot provides a dependency management for it). Then add a
spring.metrics.export.statsd.host value to your application.properties
file. Connections will be opened to port 8125 unless a
spring.metrics.export.statsd.port override is provided. You can use
spring.metrics.export.statsd.prefix if you want a custom prefix.
The information above is all from the Spring Boot documentation on metrics: https://docs.spring.io/spring-boot/docs/current/reference/html/production-ready-metrics.html