Is there a maximum value for SQS redrive maxReceiveCount?

July 2024 ยท 4 minute read

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Is there a maximum value for SQS redrive maxReceiveCount?

Yes, the maximum value for SQS redrive maxReceiveCount is 1000.

When setting up a redrive policy in Amazon SQS, you may come across the parameter maxReceiveCount, which specifies the number of times a message is received from the queue before it is moved to the dead-letter queue. Understanding the limitations and specifications of this parameter is essential for efficient message handling in your application.

What is the purpose of setting a maxReceiveCount in SQS redrive policy?

Setting a maxReceiveCount in an SQS redrive policy allows you to define the maximum number of times a message can be received from a queue before it is deemed undeliverable and moved to the dead-letter queue for further inspection.

Can I set a value lower than 1 for maxReceiveCount?

No, the minimum value for maxReceiveCount in an SQS redrive policy is 1. If you set it to 0 or a negative number, the redrive policy will not be triggered.

What happens when a message exceeds the maxReceiveCount value?

When a message exceeds the maxReceiveCount value specified in the redrive policy, SQS moves the message to the dead-letter queue to prevent it from being repeatedly processed without success.

Can the maxReceiveCount value be changed after setting up the redrive policy?

Yes, you can update the maxReceiveCount value in an existing redrive policy by modifying the policy settings in the Amazon SQS console or API. Changes will take effect immediately.

Is there a limit to the number of times a message can be processed before the maxReceiveCount is reached?

There is no limit to the number of times a message can be processed in a queue before the maxReceiveCount is reached. The maxReceiveCount value determines when the message is moved to the dead-letter queue.

Does the maxReceiveCount include all processing attempts, including failed ones?

Yes, the maxReceiveCount in an SQS redrive policy includes all processing attempts, whether successful or failed, until the specified count is reached.

Can I set different maxReceiveCount values for different queues in SQS?

Yes, you can set different maxReceiveCount values for different queues by creating separate redrive policies for each queue with the desired maxReceiveCount settings.

What happens if the maxReceiveCount is set higher than the actual number of messages in the queue?

If the maxReceiveCount is set higher than the actual number of messages in the queue, messages will only be moved to the dead-letter queue once they reach the specified count, regardless of the remaining messages in the queue.

Is there a performance impact when setting a high value for maxReceiveCount?

Setting a high value for maxReceiveCount may lead to increased message processing times and delays in identifying undeliverable messages, as messages will continue to be processed multiple times before being moved to the dead-letter queue.

Can I enable a redrive policy without setting a maxReceiveCount?

No, a valid redrive policy in Amazon SQS must include a maxReceiveCount value to specify the maximum number of processing attempts for a message before it is sent to the dead-letter queue.

What happens if the dead-letter queue becomes full due to messages exceeding maxReceiveCount?

If the dead-letter queue becomes full due to messages exceeding the maxReceiveCount value, any new messages that reach the threshold will not be processed and will remain in the original queue for further action.

Is there a cost associated with moving messages to the dead-letter queue due to maxReceiveCount?

There is no additional cost associated with moving messages to the dead-letter queue in Amazon SQS due to exceeding the maxReceiveCount value. Standard SQS pricing applies to all message processing operations.

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