Stuff I write

Playing with Kubernetes - Part 2. Service Discovery

Playing with Kubernetes - Part 2. Service Discovery

In our previous post(https://zxer.in/playing-with-kubernetes/) we have briefly discussed about docker and deploying applications in kubernetes. We built a backend and a front end service. And we were able to access the front-end from internet. But we haven't connected both services together. If you remember we hard-coded

Playing with Kubernetes - Part 1

kuberenetes Featured

Playing with Kubernetes - Part 1

Kubernetes is an open source platform that automates container operations. originally developed and designed by engineers at Google. Considering the adoption rate among cloud providers and companies, we can clearly see that k8s has won the container orchestration. That means if you are working with distributed systems you are going

Playing with Elixir- Part 2: Process Registry

erlang Featured

Playing with Elixir- Part 2: Process Registry

Processes are the basic building blocks in Elixir. These are used for building distributed fault tolerant systems. These can be compared to "actors" in AKKA (AKKA actors are inspired from Erlang). Processes are isolated from each other, run concurrent to one another and communicate via message passing. You can start

Creating SWAP file in linux

Creating SWAP file in linux

I have a small droplet in digital ocean(where this blog is hosted). Recently I was trying to run an application and it was getting killed immediately without any error message. After some googling it turned out that system was throwing memory out of exception. dmesg showed me dmesg Even

Playing with Elixir

Playing with Elixir

Recently Elixir and their web framework Phoenix has been picking up lot of interest, especially from HN. I decided to take a look and it looks very exciting. Some time back when I was playing with XMPP, I came across Erlang. But it had a very deep learning curve and

My experience scaling AKKA TCP in Play Framework

My experience scaling AKKA TCP in Play Framework

For a recent project, I had to integrate AKKA TCP with our REST server built on play framework. We faced and solved many issues while trying to scale the application for high concurrency. Here are the details Requirment: We were building REST API. For one particular API, the request was

Using SOAP service in java play framework application

Using SOAP service in java play framework application

On my previous assignment I was tasked with building a payment system for a large enterprise. Since it was an enterprise there were a bunch of subsystems to be integrated. One of the subsystem was a SOAP server!!..aaargh!!. First step There is no straight forward support for SOAP in