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[Ubuntu] Install Spark1.6.0 on Ubuntu 14.04

[Ubuntu] Install Spark1.6.0 on Ubuntu 14.04

What is Spark?

Apache Spark is a fast and general-purpose cluster computing system. It provides high-level APIs in Java, Scala, Python and R, and an optimized engine that supports general execution graphs. It also supports a rich set of higher-level tools including Spark SQL for SQL and structured data processing, MLlib for machine learning, GraphX for graph processing, and Spark Streaming.

You can download Spark from here, or follow the below command to download and install Spark1.6.0.

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[Ubuntu] Install chef-server, chef management console on Ubuntu 14.04

[Ubuntu] Install chef-server, chef management console on Ubuntu 14.04

What is Chef?

Chef is a systems and cloud infrastructure automation framework that makes it easy to deploy servers and applications to any physical, virtual, or cloud location, no matter the size of the infrastructure. Each organization is comprised of one (or more) workstations, a single server, and every node that will be configured and maintained by the chef-client. Cookbooks (and recipes) are used to tell the chef-client how each node in your organization should be configured. The chef-client (which is installed on every node) does the actual configuration.

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[Java] Install/uninstall Oracle/Open JDK, Maven, Ant, Tomcat on Ubuntu14.04

[Java] Install/uninstall Oracle/Open JDK, Maven, Ant, Tomcat on Ubuntu14.04

I used the following command to install Java tools on Ubuntu14.04 , and it also works for old Ubuntu version.

Install Oracle JDK6, JDK7, JDK8

$ sudo apt-get install python-software-properties
$ sudo add-apt-repository ppa:webupd8team/java
$ sudo apt-get update
$ sudo apt-get install oracle-java6-installer

or

$ sudo apt-get install oracle-java7-installer

or 

$ sudo apt-get install oracle-java8-installer

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[Ubuntu] Using Amazon RDS with WordPress

[Ubuntu] Using Amazon RDS with WordPress

In order to improve efficiency and elasticity of EC2 instance, we need to use a database that is installed on a separate machine. A good solution is using AWS RDS. Before we create a database RDS instance, we need to make a dump of the existing database on our WordPress server.

In the following, I will list these instructions.

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[Ubuntu] Install WordPress on AWS EC2 Ubuntu 14.04

[Ubuntu] Install WordPress on AWS EC2 Ubuntu 14.04

I change my blog from google blogger to wordpress recently. First of all, I got an Amazon Web Service account, then I created 2 instances(EC2 and RDS), finally, I installed wordpress on EC2. I will list instructions in the following steps.

1. Create AWS EC2 instance
2. Install Linux, Apache, MySQL, PHP (LAMP) stack on Ubuntu 14.04
3. Install WordPress on Ubuntu 14.04
4. Setup FTP server for wordpress
5. (Option) Create AWS RDS instance and connect to WordPress

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