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Learning NServiceBus by David Boike

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Monitoring

NServiceBus makes it easy to monitor the performance of any endpoint that has the performance counters enabled, which includes any endpoint installed with the production profile. After having installed NServiceBus and a service with counters enabled, you will find these counters in the NServiceBus category in the Windows Performance Monitor:

  • Number of message failures per second
  • Number of messages pulled from the input queue per second
  • Number of messages successfully processed per second
  • Critical time
  • SLA Violation Countdown

The last two are especially interesting. critical time is the age of the oldest message in the queue, or in other words, the length of the queue's backlog in seconds. This is important because it is how business stakeholders ...

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