Load service configuration details from AWS S3

Recently, we worked on a microservice that handles many queues for retrying failed tasks, each having different configuration properties. Until we calibrate our application, we had to adjust those configuration properties almost daily and that was quite painful for us: code changes, code review, deployment and tomorrow from the beginning. In order to make our […]

February in review

Another month, another round of CirrusUp cloud-related articles. Like last months, February has surely kept interesting topics coming. In case you missed one, we inventoried our latest posts. We encourage you to subscribe to our newsletter to be the first who receives new posts. Latest posts An interesting library to extract metrics for AWS calls […]

Controlled chaos for testing your microservice

If you run a distributed application you know that even you have 100% code coverage, integration and acceptance tests, there are components you cannot control. You cannot control hardware failure, you cannot control network latency, DNS failure and so on. Today’s post is about a library that can help testing your Spring Boot application with […]

A helping tool to choose EC2 instance type

Whenever we have to make a choice, it’s difficult. But when you have hundreds of available options, the mission is even harder. It’s the same situation when you have to choose hardware type for a service: there are many EC2 host families, generations, number of cores, amount of RAM and so on. Moreover, some instances […]

An interesting library to extract metrics for AWS calls

Probably you know that we published a library that can be used to fetch some basic stats about AWS calls. That library uses an AWS request handler to build metrics that are later published in a text file, in various formats. Recently we found an interesting library that does almost the same things, in a […]