Lambda Timeout while communicating with S3

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I'm trying to simply list all the files in an S3 bucket using Lambda

The code looks as follows:

var AWS = require('aws-sdk');
var s3 = new AWS.S3();

exports.handler = (event, context, callback) => {

   s3.listObjectsV2({
       Bucket: "bucketname",
   }, function(err, data) {
       console.log("DONE : " + err + " : " + data); 

       callback(null, 'Hello from Lambda');
    });
};

Using the above, I never get the "DONE" printed at all. The log doesn't show any information except for the fact that it timed out.

Is there any troubleshooting I could do here? I would've thought that at least the error would've been shown in the "DONE" section.


Thanks to Michael above. The problem was that it was running inside a VPC. If I change it to No VPC, it works correctly. Your solution may be different if you require it to run in a VPC.

AWS Lambda Timeout Best Practices, task once it hit a run-time of 15 seconds. One of the most common event providers to act as Lambda triggers is the S3 service. Events are being fired all of the time in S3 from new files that are uploaded to buckets, files being moved around, deleted, etc. All of this activity fires events of various types in real-time in S3.


If you are running your code inside the VPC, Make sure VPC subnet and its routing table entry should be proper (routing : Dest= 0.0.0.0/0 and target = igw-xxxx). Also VPC endpoint routing must be added in order to communicate to s3 via endpoint.

AWS Lambda: Task timed out, function. The handler has the details of the events. Suppose you want to create a thumbnail for each image file that is uploaded to a bucket. You can create a Lambda function ( CreateThumbnail ) that Amazon S3 can invoke when objects are created. Then, the Lambda function can read the image object from the source bucket and create a thumbnail image target bucket.


In my case I have selected 2 different subnets, 1 is private and other is public. So it was working sometimes and sometimes not. I changed both subnets to private (having NAT gateway in route) and now it that worked without timeout error.

Using Lambda Function with Amazon S3, What is the most likely issue with the lambda function's timeout? Image below shows the lambda config for those tests: Lambda console no VPC config. It was mentioned before. Answers included should solve your problem: Lambda Timeout while communicating with S3. Please let us know if it helps.


If you are running your code inside VPC make sure to create VPC Endpoint. Here is the tutorial: https://aws.amazon.com/blogs/aws/new-vpc-endpoint-for-amazon-s3/

Lambda function timeout, serverless lambda timeout task timed out after 3.00 seconds aws lambda nodejs aws lambda read file from s3 node js aws lambda upload file to s3 python Use short timeouts when communicating with a downstream system. Just as a short Lambda timeout is a good practice, we should use short timeouts on our integration points, too. If a downstream system is not able to respond within a few seconds, then perhaps it’s struggling. Maybe it won’t respond for a long time.


Lambda Timeout while communicating with S3, I'm trying to simply list all the files in an S3 bucket using Lambda The code looks as follows: var AWS = require('aws-sdk'); var s3 = new AWS. Lambda functions are limited to a maximum execution time of 15 minutes (this was recently increased from the original 5 minutes timeout). The actual limit is configured when the Lambda function is created. The limit is in place because Lambda functions are meant to be small and quick rather than being large applications.


Lambda Timeout while communicating with S3 - node.js - html, When I try to invoke my AWS Lambda function using an AWS SDK, the function times out, Your API call doesn't get a response within the socket timeout. Int(​3), })) // Create S3 service client with a specific Region. svc := s3. The best thing about setting the Lambda S3 trigger is, whenever a new file is uploaded, it will trigger our Lambda. We make use of the event object here to gather all the required information. This is how a sample event object looks like.


Troubleshoot Retry and Timeout Issues When Invoking a Lambda , Amazon S3 can send an event to a Lambda function when an object is created or deleted. You configure notification settings on a bucket, and grant Amazon S3  Let us see these steps with the help of an example which shows the basic interaction between Amazon S3 and AWS Lambda. User will upload a file in Amazon S3 bucket Once the file is uploaded, it will trigger AWS Lambda function in the background which will display an output in the form of a console message that the file is uploaded.