Many metrics are not persisted to disk. Some metrics are constant over time, at least for the time the JVM is online. For example, the maximum amount of heap memory allocated by the operating system to the JVM does not vary during the lifetime of the JVM. It does not make sense to persist such values over time because this behavior consumes disk space. All of the metrics that are tracked by the controller with regard to the JVM, including those that are also persisted as time-series data, are available in the controller support report under the jvm-metrics ID.