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Release Notes / Version 11.2210

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Fixed Prometheus Cache Metrics

Spring Boot actuator endpoint /metrics provides several metrics on CoreMedia components (see Operations Basics Manual , section Basics of Operation | Actuator Endpoints | Metrics Endpoint ). In addition to that, actuator endpoint /prometheus publishes this data for scraping by monitoring application Prometheus . However, cache metrics were incomplete for some CoreMedia components when using this endpoint. With this fix, the complete set of cache information can now be retrieved from it.

CoreMedia cache meter names in Spring Boot actuator endpoints /metrics or /prometheus have been changed:

  • cache.capacity -> coremedia.cache.capacity

  • cache.evaluation.duration -> coremedia.cache.evaluation.duration

  • cache.eviction.duration -> coremedia.cache.eviction.duration

  • cache.evictions -> coremedia.cache.evictions

  • cache.gets -> coremedia.cache.gets

  • cache.level -> coremedia.cache.level

  • cache.puts -> coremedia.cache.puts

  • cache.removals -> coremedia.cache.removals

  • cache.size -> coremedia.cache.size

  • cache.updates -> coremedia.cache.updates

Tag cache is not used on these meters any longer.

Meter names cache.gets , cache.puts , cache.size , and cache.evictions may still be present for other caches (depending on the component).

If you used cache metrics before, you may need to adjust your monitoring application's configuration according to the list above to comply with the new meter names for CoreMedia caches. See Operations Basics Manual , section Basics of Operation | Actuator Endpoints | Metrics Endpoint for details on metrics parameters.

(CMS-21612)

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