Jackrabbit provides org.apache.jackrabbit.api.stats.RepositoryStatistics exposing a wealth of information about repository read, write and cache performance. We should register it either with the MBean server info.magnolia.cms.util.MBeanUtil#registerMBean or Dropwizard metrics (info.magnolia.monitoring.MicrometerRegistryProvider).

Discovery

• The repository statistics are available from org.apache.jackrabbit.core.RepositoryContext#getRepositoryStatistics. See the discovery of MAGNOLIA-9183 for how to get access to the RepositoryContext.
• To expose the repository statistics as MBean we can copy and slightly modify the implementations from Jackrabbit Oak (info.magnolia.repository.mxbean.RepositoryStats and info.magnolia.repository.mxbean.RepositoryStatsMBean).