This MBean is started by SimpleExpireCache for manipulating the cache.
Two MBeans of are started: one named cached and another named jdbc. The second MBean provides statistics for JDBC access for the operations findPassword (PasswordStatistics), findGroups (GroupStatistics), and findSeeds (SeedStatistics). These statistics can be used to troubleshoot or monitor JDBC performance. The first MBean provides statistics for the same operations but in this time including the effects of caching. This means that in practice the number of invocations measured by the cached MBean will be greater or equal to that of the jdbc MBean.
The following statistics are provided for each operation:
|durationMillis||Total (cumulative) duration for the operation in milliseconds.|
|failCount||Total number of times the operation has failed. Failure is interpreted as password or group not found (seed query always succeeds). Also, there the failCount is incremented when an exception occurs (which should never occur in the design).|
|succeedCount||Total number of times the operation has succeeded.|
In addition there is an operation to clear statistics.