failed events re-try

Question

What happens to events which trigger a target say invoking the lambda but it is not processed successfully ?
Will it retry for x times ? is the x times configurable ?
Will the events are pushed to DLQ when the retries are exhausted ?

Accepted Answer

Hello Navin,

This is a very good question.
Yes, it will retry several times and then could send event to DLQ.
Most of the settings are in so called retry policy.

You can find meaningful information about the question you asked inside here https://docs.aws.amazon.com/eventbridge/latest/userguide/eb-rule-dlq.html

Hope this answers to your question.

Regards,
Totti

Answer

To expand a little on Totti's answer, that applies to Asynchronous invocation of Lambda functions which is probably what you're asking about.  Note though that some services invoke functions Synchronously, waiting for a reponse and may include retries.  Some other services generate a queue or data stream, and you create an "event source mapping" in Lambda, causing the Lambda service to read (poll) data from the other service, create events and invoke your function.

failed events re-try

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