Posts by Yan Cui

AWS announced the release of the Lambda Function URLs feature today. In this post, I describe what it is, how...

Every Lambda function comes with 512MB of ephemeral storage in the shape of a /tmp directory. This storage space can...

Observability is a measure of how well the internal state of a system can be inferred from its external outputs....

AWS just announced support for AWS Lambda functions powered by AWS Graviton2 processors. These are 64-bit Arm-based processors that are...

Here at Lumigo, our mission is to help customers succeed with serverless by solving the observability problem and letting them...

AWS AppSync is a fully managed GraphQL service that makes it easy for you to build scalable and performant GraphQL...

Today, AWS announced another major feature to the Lambda platform: the option to package your code and dependencies as container...

AWS released Lambda Extensions just over a month ago, and we explained what they are and why they matter. Today,...

There is a growing ecosystem of vendors that are helping AWS customers gain better observability into their serverless applications. All...

What are Lambda Cold Starts? Cold starts can be a killer to Lambda performance, especially if you’re developing a customer-facing...

When you build your application on top of Lambda, AWS automatically scales the number of “workers” (think containers) running your...

A key metric for measuring how well you handle system outages is the Mean Time To Recovery or MTTR. It’s...

Some time ago, an ex-colleague of mine at DAZN received an alert through PagerDuty. There was a spike in error...

Ten years ago, Amazon found that every 100ms of latency would cost them roughly 1% in sales. This is a...

UPDATE 21/06/2020: following the official launch of this feature, we have performed more thorough performance testing to see how mounting...

One of the great things about Lumigo is that it records a lot of context about each Lambda invocation. This...

As you read this, API Gateway HTTP API is now Generally Available. This is an important milestone, and kudos to...

SNS and SQS have been the goto options for AWS developers when it comes to service integration. However, since its...