Grails, hazelcast, multithreading technologies

Recently, I have been looking for a way to implement thread synchronization in a Grails application which is hosted on several nodes on Rackspace. And while it's rather easy to synchronize threads within a single servlet container, it might be difficult to do it when the same data is simultaneously updated from separate server nodes. This post shows how this task can be solved with Hazelcast.

Configuration, zookeeper, groovy, curator, distributed technologies

This post is the second in the series of publications about using the Apache ZooKeeper for building configuration management solutions for a distributed system. It focuses on implementing a tool for loading initial configuration data into a fresh ZooKeeper ensemble.

Angularjs, javascript, braintree technologies

During drop in integration of Braintree into Angular.JS application we have faced several surprising caveats. This was the primary reason for current post to be born. We would like to share our expreince and solutions that we've learnt during this process.

Mongodb, scala, salat technologies

Usually a data access object for MongoDB consists of common routine CRUD methods. Those methods should be implemented, tested, maintained just like any other code. In this post, I'm going to show you how to use SalatDAO to vastly simplify the process.

Generally, Salat is used for serialization of case classes, enums and collections to

Testing, scala, gatling, rest technologies

In this post, I am going to show how to create load tests for a REST API application with the help of Gatling 2. This will be a step-by-step guide — starting from integrating Gatling 2 using SBT plugin, creating/configuring test scenarios, and all the way to running the Gatling tests.