Lambda concurrency metrics not showing in cloud-watch

Question

Currently, we run several lambda functions in AWS. We have recently deployed a new function that is web-facing. This function needs to serve a high volume of end users thus requiring the use of provisioned concurrency. I have configured provisioned concurrency however can not see the following metrics.

- ProvisionedConcurrentExecutions
- ProvisionedConcurrencyUtilization
- UnreservedConcurrentExecutions
- ProvisionedConcurrencyInvocations
- ProvisionedConcurrencySpilloverInvocations

I can confirm I have provisioned concurrency enabled and can see concurrent invocations via the `ConcurrentExecutions` metric.

Answer

Provisioned Concurrency works on specific function alias. Are you actually invoking the specific alias? Or are you invoking Latest? You should point your API to the specific alias.

Lambda concurrency metrics not showing in cloud-watch

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