amazon web services - Why isn't SQS an event source for lambda? -


aws lambda functions have bunch of event sources sqs ain't one.

why that? have thought fit.

amazon sqs queueing service, designed buffer holding messages until consumed application. sqs typically used backlog occurs prior consuming application.

aws lambda, however, highly parallel service can run functions in parallel. lambda functions triggered event, such uploading file amazon s3 or receiving data via amazon kinesis.

i don't have definite answer why lambda cannot triggered sqs, i'd guess because there no need this. instead of sending message amazon sqs, the originating application should invoke aws lambda function directly. simpler process, less moving parts.

there default limit of 1000 concurrent lambda functions. if not enough, lambda queues requests , can request limit increase.


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