Tags » Amazon EC2

Big Data Security: How to secure your Hadoop cluster

Hi all,

Big Data is for sure one of the biggest trends of the last few years. Besides the conceptual discussions on what big data actually is and what amount of data can be defined as such, any technology that quickly becomes widespread is relevant to… 1,178 more words


C is the new Java

In my previous post Game Over for VMs, what’s next?  I made the case that the underlying concerns that gave rise to virtual machine technology no longer exist.  358 more words

Tips And Tricks

Ansible role to create linux users with Github accounts ssh key

In this short tutorial we’ll learn how to create or delete the linux user accounts with public ssh keys associated with their Github accounts using Ansible, so please create a Github account if you don’t already have one, and follow the… 229 more words


Automating Deployment to EC2 Instance with Git - Wern Ancheta

In this tutorial I’m going to show you how to automate the deployment of changes to your ec2 instance using git. Deployment is done by setting … 10 more words

Web Development

Autoscaling with AWS instances using Ansible-Pull

Ansible has an excellent feature called ansible-pull, which many people don’t know or don’t use. This feature works best for self healing infrastructure, best example is AWS Autoscaling in which new ec2 instance is created from vanilla ami, then pull the code from somewhere (version control system) and configure itself before announcing that it is ready to serve (mean add to the serving ELB). 528 more words

Amazon EC2

Use JMX/Jconsole to monitor Cassandra on EC2

In my previous post, we use Datastax Opscenter to monitor the performance of Cassandra cluster.

In this article, I’ll show you how to use JMX/Jconsole to monitor the metrics in Cassandra. 274 more words

Amazon EC2

Benchmarking Cassandra in Amazon EC2 with YCSB

YCSB has been proved to be one of the most efficient tool to test the performance of different databases, such as HBase, MySQL, Apache Cassandra, MongoDB etc. 716 more words

Apache Cassandra