![]() I verified through logging that the execution of the code inside the Lambda does not take 10-15 minutes (just the usual 8-12 seconds) so everything seems to be pointing towards Lambda functions not getting allocated as they should, but I have no way of proving/disproving this at present. at machine speed) and the 698th message took around 10-15 minutes to get a Lambda to process it. For example when the reserved concurrency was 70, and then 700 messages were pumped into the queue (all at once, e.g. ![]() The same issue presents itself under different tests as well. If there are more messages in the queue, Lambda adds up to 60 functions per minute, up to 1,000 functions. We can do this very easily, just go to SQS Console and find Lambda triggers tab below Click Configure Lambda function trigger, and well see the Lambda function we just deployed. Lambda consumes messages in batches, starting at five concurrent batches with five functions at a time. Finally, all we have to do is configure SQS to handle this Lambda function whenever a new message comes in. Has anybody experienced behavior like this and if yes did they ever figure out why? When a Lambda function subscribes to an SQS queue, Lambda polls the queue as it waits for messages to arrive. The SQS queue claims that all 10 messages are "in flight", basically putting the blame on the Lambda or the code running inside of it. What happens is that the first few messages get processed in reasonable time and then some extreme slowness kicks in (15 minutes of no visible progress). It will show you how to set up your first Lambda function with an SQS trigger. This is abbreviated from the full tutorial by Adrian Hornsby. I pump 10 messages into the queue and expect the lambda to go through them one by one in reasonable (linear) time given that the reserved concurrency is exactly 1 around 150 seconds maximum in total. Quick Tutorial: Setting Up a Lambda Function with SQS Triggers. ![]() Emphasis on "listening", so I'm not polling with a Lambda, but instead the Lambda gets triggered by the SQS queue automatically.When specifying an AWS Lambda function for the queue, choose the option Enter AWS Lambda function ARN and then place your Lambda function ARN complete with the Alias qualifier. Said work typically takes around 8-12 seconds, never more than 15. Its possible to configure an SQS Queue to trigger a Lambda Function alias using the console. Lambda is configured to listen on the queue and do some work when messages arrive. For example, if we have 2300 messages in a queue, we expect 3 triggers to a lambda function, the first 2 triggers corresponding to 1,000 messages, and the last one will contain 300 messages.Lambda function with a reserved concurrency of one.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |