AWS
Serverless API on AWS in 10 minutes
Amazon Web Services (AWS) allows you to quickly prototyping simple web applications. For example, to write a set of APIs for a simple mobile application can be done in minutes.
In this...
Big Data
What is Apache Spark
In short - Apache Spark is a fast, universal, in-memory data processing engine.
Apache company polled a survey on “Why companies should use in-memory computing framework like Apache Spark?” and the results...
Big Data
Apache Spark Cluster Installation and Configuration Guide
This is step by step guide of how to install and configure Apache Spark cluster on Linux.
Prerequisites
Hardware requirements
8+ GB RAM.
4-8 disks per node,...
Big Data
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
...
Big Data
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...
Code Example
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...
