Each Correlation RA entity collects the following statistics that may be monitored via the Rhino statistics client.

Counters

Name Description

correlationGets

Count of correlation IDs which have been requested via findCorrelationEntry()

localGets

Count of correlation queries which returned immediately (synchronous delivery) as the local RA had the data available.

remoteGets

Count of correlation queries which did not return immediately (asynchronous delivery) as the local RA did not have the data available.

localDelivery

Count of correlation queries which is triggered through asynchronous or force synchronous request, but the data is in local RA instance.

remoteDelivery

Count of correlation queries which required delivering data to another correlation RA instance.

unknown

Count of correlation queries which could not be remotely delivered as the destination RA for a correlation ID was unknown.

Caution The count correlationGets should equal the sum of localGets + remoteGets.

These statistics can use used to create threshold-based alarms.

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