I would like to talk about interesting stuff that I faced on my project. For our client, we wrote some lightweight microservices in AWS that just proxies requests to some underlying services via HTTP and returns it back to the client. The main flow: At first glance, what could be…

Nowadays, Fargate is very popular. It solves such ECS with EC2 problems as: Scaling problem (with EC2 you should have ASG which will add additional nodes if not enough resource in ECS cluster. It’s quite tricky) Not efficient resource utilization (with EC2 you always need a free buffer in ECS…

AWS Lambda GraalVM native: Quarkus vs plain Java I prefer to use plain Java code for GraalVM native AWS Lambda but my colleagues often ask me why I don’t consider some framework for this. My first point is that our AWS Lamda code should be simple enough to write without…

As you may know, just a month ago AWS announced AWS Graviton2 Processors for AWS Lambda and says that AWS Lambda functions using the Arm/Graviton2 architecture provide up to 34 percent price-performance improvement. In this article, we are going to check what real price-performance improvement we can see for the…

Since AWS Lambda is so popular and supports so many languages and custom runtimes, I was trying to find on Internet the benchmarks for all supported languages with detailed results, but I didn’t find anything relevant. Some articles are old or don’t contain all languages. Let’s compare the performance of…

Do you also like Serverless and Java, but hate a Java code start? In this article, we are going to demonstrate how to solve Java cold start issue in AWS Lambda. Let’s write some book microservice and measure the performance. As usual all code you can see in my Github…

We are running a lot of serverless applications in AWS and I was really happy that AWS finally introduce Java 11 support for AWS Lambda. I guess many teams already switched to Java 11 and think that it brings some performance improvement. AWS Lambda Java 11 was announced in November…

I would like to talk about SQL clients for Java application. In this article, we will compare the performance of good old JDBC(Spring Data JDBC) with new and promising R2DBC(Spring Data R2DBC). There is no such performance comparison in open access. The source code is available in my GitHub Test scenario We…

AWS has just released a new Java SDK (https://aws.amazon.com/blogs/developer/aws-sdk-for-java-2-x-released/) and I would like to review the main feature that was introduced in the new SDK. Of course, the main feature is nonblocking clients. We have been waiting for release version for more than a year!!! As you can see on…