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The policy engine hub includes three performance objects that are useful when diagnosing hub problems. In the Performance applet (accessible from Administrative Tools), you can add a range of useful performance objects. For each performance object, you can specify which counters and, where relevant, instances you want to view.
Policy Engine Performance Object
For policy engine performance object details, see Performance counters for policy engines.
Hub Performance Objects
Note: If the hub is deployed with the Exchange 2007 server agent on a 64-bit machine, you must open the correct instance of perfmon.exe.
For policy engine hubs, the following performance objects are available:
Available only as a single instance. This contains counters for the policy engine hub itself. For example, you can see the number of active, standby and connected policy engines, the number of pending events in the hub input queue, the number of event failures, and the total memory allocated to events in the queue.
Multiple instances available; one per policy engine. This performance object contains counters for hub connections to individual policy engines. To view counters for a connection to a specific policy engine, select its corresponding instance.
Available counters show statistics such as the number and rate at which events are being passed to the policy engine and the internal state of the policy engine, for example, ‘inactive’, ‘processing’ and ‘dead’ (if you encounter a problem with a policy engine, Technical Support may ask for details of its internal state).
Multiple instances available; one per event queue on the hub. For each instance, this performance object contains counters for individual policy engines. To view counters for a specific queue, select its corresponding instance.
Available counters show statistics such as the queue size band (in bytes), the number of active and standby policy engines available to process the queue, and the number of items assigned to the queue.
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