CODEWITHSUNDEEP
jmxmbeanscaffeinejmx-exportercaffeine-cache
Berni
Berni

Reputation: 457

Is there a way to enable Caffeine MBean registration?

I am using Scaffeine in my project (https://github.com/blemale/scaffeine), a Scala wrapper for Caffeine (https://github.com/ben-manes/caffeine). I also have a prometheus JMX collector embedded in my metrics API (https://github.com/Segence/kamon-jmx-collector).

However when I launch my application, I can't really see any MBeans for Caffeine in VisualVM.

Also, when looking at the Caffeine project, I found that in the caffeine/jcache/src/main/resources/reference.conf there is a config for JMX monitoring:

monitoring {
      # If cache statistics should be recorded and externalized
      statistics = false

      # If the configuration should be externalized
      management = false
    }

Both are set to false. Is there a way to configure Caffeine so that it exposes MBeans to JMX?

Upvotes: 2

Views: 986

Answers (1)

Berni
Berni

Reputation: 457

Thanks Ben Manes,

This would be the answer according to prometheus:

import io.prometheus.client.cache.caffeine.CacheMetricsCollector

CacheMetricsCollector cacheMetrics = new CacheMetricsCollector().register();

Cache<String, String> cache = Caffeine.newBuilder().recordStats().build();
cacheMetrics.addCache("myCacheLabel", cache);

Upvotes: 2

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