In this post, we demonstrate how to install multiple versions of Scala on a MacOS environment. We will assume that the package manager HomeBrew is already installed.
To o install brew, follow the instruction
In this post, we demonstrate step-by-step how to download all papers from ArXiv. ArXiv is an open access repository in which researchers share their manuscripts before their publication to a conference or journal.
The arXiv dataset is available on...
In this post, we present a hello world application in Apache Spark.
Spark is a general engine for large-scal data processing. The main differentiating factor compared to the map-reduce framework is it’s ability to cache intermediate results in-memory.
In this post, we will briefly introduce Apache Spark.
Spark is a general engine for large-scal data processing. The main differenting factor compared to the map-reduce framework is it’s ability to cache intermediate results in-memory.
To start with Spark,...
During index creation in some cases elasticsearch fails to assign properly its shards. Usually, this issue arises when the cluster runs out of space. If it happens to run your cluster in production, you might want to force elasticsearch to...
In this post, we will configure Nginx Server as a load balancer for Apache Tomcat. First, we will provide the configuration of nginx for proxying a single Apache Tomcat instance. Later, we will show how this configuration can be...
In this post, we will introduce Fabric.
Fabric is a simple, yet powerful, tool for remotely controlling a farm of servers from your terminal.
As a warmup example, let’s assume that you want to check the uptime of a...
In this post, we demonstrate how to monitor Apache Tomcat 7 using Nagios on Ubuntu 14.04.
We assume that nagios server has been configured on the address
nagios.your_host_name.com as described in the following guide:
Nagios on Ubuntu
This is the first post. The current blog runs on github pages using Jekyll. It has been bootstrapped using Jekyll Now repository on GitHub.
Pretty cool, no DBs, plugins, etc like in Wordpress. Also no worries for backups...