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::::{warning} This functionality is in beta and is subject to change. The design and code is less mature than official GA features and is being provided as-is with no warranties. Beta features are not subject to the support SLA of official GA features. ::::

Cache Metricset retrieves the JMX key Catalina:context=*,host=*,name=Cache,type=WebResourceRoot. It exposes the following metrics:

• tomcat.cache.mbean: Mbean that this event is related to.
• tomcat.cache.hit.total: The number of requests for resources that were served from the cache.
• tomcat.cache.size.total.kb: The current estimate of the cache size in kB
• tomcat.cache.size.max.kb: The maximum permitted size of the cache in kB
• tomcat.cache.lookup.total: The number of requests for resources
• tomcat.cache.ttl.ms: The time-to-live for cache entries in milliseconds