My team built and productionized a custom rate limiter in Scala
A year ago, when I was leading a "Digital Platform" team at a large bank, we built and productionized a custom rate limiter in Scala. This is the story of why and how we did it.
Concurrency#
Composable concurrency scope of ZIO Semaphore
I was recently working on a "Durable Key-Value Store" implementation in ZIO. The implementation was pretty straightforward, but I had to make sure that the log file is not accessed concurrently by multiple fibers. I could have used a Ref to keep track of the state, but I came across Semaphore in ZIO and decided to give it a try. I was pleasantly surprised by how easy it was to use. In this post, we will take a look at how to use Semaphore to implement concurrency control in ZIO.
Actors using Scala & Akka — Part 2 : AskPattern and SpawnProtocol
This is second post in a series of “Actors using Scala & Akka”. In Part 1, we saw how to create new actors and modify their state by sending messages.
In this articles we will take a look at how to get a reply from actors (i.e.Ask Pattern) and spawning user actors (Spawn protocol) instead of system actors.
Actors using Scala & Akka — Part 1 : Introduction
Since I am stuck at home due to Covid-19 pandemic. With nothing else to do, I thought the best use of time would be to continue my blog series about actors. In the last article, we saw what are actors, their properties and how these properties can be useful for writing concurrent and stateful applications. It was all theory. In this article, I will demonstrate how to write your first akka actor in scala using IntelliJ IDE. Hop on even if you don’t know scala.
Concurrency with Actors
The actor model of computing was introduced by Carl Hewitt in 1973. This model makes it easy to tackle the problem of concurrency and state management. The model treats an “actor” as a primitive unit of computing.