A software developer's playground
Background Lately, I have been interviewing candidates for a Developer role and realised how much confusion there is, still, around the concepts of Inversion of Control and Dependency Injection. The majority of people use both terms interchangeably. Probably, the confusion derives from the heavy use of those concepts on Spring, where Inversion of Control is used to enable Dependency Injection. …
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This post presents an example of how to tune an Akka application. The first section presents the application (actually, a simple microservice) that will be used along this post to illustrate the tuning process. The second section describes the load tests and tools that will be used to measure the application performance. Next section presents different test scenarios …
Background Developing an application following the reactive principles can be quite challenging, specially when working with third party libraries, as these may not be fit for purpose, i.e. blocking operations. In such cases, the first challenge is to find the blocking operation and the second to confine it so that it does not affect the rest of the …