What is Apache Kafka

What is Kafka? Apache Kafka is a distributed and robust queue that can handle high volume data and enables you to pass messages from one end-point to another. Kafka is ...

Apache ZooKeeper Cluster Installation Guide

Introduction ZooKeeper is a centralized service for maintaining configuration information, naming, providing distributed synchronization, and providing group services. All of these kinds of services are used in some form or another by...

Java REST Client POST with Cookie

In previous post I showed how to get cookie from server response with RestTemplate and exchange method. In this article we will use that cookie in order to call other server API...

Java REST Client Get Cookie From Server Response

Sometimes in order to be able to perform some actions via REST API server wants the client to be logged in. It may be done by sending to the client some...

Configuring and Running Redis Cluster on Linux

Redis Cluster was released on April 1st, 2015. Since then Redis Cluster is the preferred way to get automatic sharding and high availability. In this article you'll see step by step tutorials about how...

Get list of files and folders from specific Amazon S3 directory

Every item stored in Amazon S3 is object, not file, not folder, but object. This often confuses new programmers, because they used to deal with folders and files in file system....