1.0  Introduction 1.1  Purpose This document is intended to provide some information about best practices for Cassandra and DataStax enterprise Cluster sizing. 2.0  Cassandra Cluster sizing Let’s talk about sizing our cluster. It is …

ANALYZING TWITTER DATA WITH APACHE HADOOP Problem statement: Social media platforms like Twitter provide easy access for general public to voice their opinions. Positive or Negative opinions about a company or its …

Decommission Cassandra old nodeI recently went through the exciting task of decommissioning a old node then joining a new Cassandra node in place on an existing data center. Although the …

CREATE A REPLICAT SET: STEP 1: In this post , we will create a replica set and add some data to it. 1. Unpack replication.js from the Download Handout zip file. 2. We will …

I am going to use utility called csshx which allow me to type on multiple machine concurrently, you can see how to install it on this web site: http://www.unixmen.com/how-to-manage-multiple-ssh-sessions-using-cluster-ssh-and-pac-manager/ IN MY …

In this post , i am going to build a blog because lot of people are familiar with that. It will be write with Java. We will see not how to …

Setup-Cassandra Cluster Open Source on Centos 6.7 I am going to use utility called csshx which allow me to type on multiple machine concurrently, you can see how to install it …

MongoDB Performance: We’re talking about performance. The performance of computer systems is driven by a variety of factors including the performance of the underlying hardware — the CPU, the disk and …

Installing Python 2.7 on centos 6.7 Follow this sequence exactly for centos machine only. CentOS 6.7 ships with Python 2.6.6 and depends on that specific version. Be careful not to replace it or …

Cassandra Operations And Performance TuningIn this topic, i will  cover the basics of general Apache Cassandra performance tuning: when to do performance tuning, how to avoid and identify problems, and …