What happens if Lambda is unable to process a message from SQS before the visibility timeout expires?
What happens if a Lambda function fails to process an SQS message before the visibility timeout When an SQS message is received by a Lambda function, the message's visibility timeout starts. This means the ...Continue reading
Optimizing costs of invoking Lambda from SQS vs SNS There are a few ways that using SQS as a trigger for Lambda functions can optimize costs compared to invoking Lambda directly from SNS:Continue reading
SQS Features That Help Retry and Reprocess Messages Amazon SQS offers several features that help with retrying and reprocessing messages: Visibility Timeout - When a message is received from ...Continue reading
Lambda autoscaling with SQS triggers works as follows: When an SQS queue is configured as a trigger for a Lambda function, Lambda will start by polling the queue using 5 concurrent connections. As messages become ...Continue reading
Using an SQS queue as an intermediary between SNS and Lambda has several benefits: Batch processing - Lambda can read messages from the SQS queue in batches and invoke a single function ...Continue reading
Using an SQS queue between SNS and Lambda introduces some latency compared to invoking Lambda directly from SNS. Here are the main factors that contribute to latency: SQS polling interval - Lambda polls ...Continue reading