[infinispan-issues] [Red Hat JIRA] (ISPN-12607) Metrics degrade cluster performance

Metrics degrade cluster performance ----------------------------------- Key: ISPN-12607 URL: https://issues.redhat.com/browse/ISPN-12607 Project: Infinispan Issue Type: Bug Affects Versions: 12.0.0.CR1, 11.0.8.Final Reporter: Ryan Emerson Priority: Major The `/metrics` endpoint exposes Infinispan stats so that they can be periodically scraped by monitoring tools such as Prometheus. However, these stats include calls to `size` which does not perform well as the number of entries in a cache increase. Consequently, if deploying DG in a k8 environment with Prometheus monitoring the DG cluster performance rapidly declines as the number of entries in a cache increases due to time /resources spent iterating the cache container. This problem is only exasperated when muiltiple caches exist with many entries exist.