AWS – AWS Lambda now supports batch windows of up to 5 minutes for functions with Amazon SQS as an event source
AWS Lambda now allows customers using Amazon Simple Queue Service (Amazon SQS) as an event source to define a wait period, called MaximumBatchingWindowInSeconds, to allow messages to accumulate in their SQS queue before invoking a Lambda function. In addition to Batch Size, this is a second option to send records in batches, to reduce the number of Lambda invokes. This option is ideal for workloads that are not time-sensitive, and can choose to wait to optimize cost.
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