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Distributed Apache Flume Setup With an HDFS Sink

I have recently spent a few days getting up to speed with Flume, Cloudera‘s distributed log offering. If you haven’t seen this and deal with lots of logs, you are definitely missing ...
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Install Cloudera Manager 3.7.5 Free Edition

I recently installed Cloudera Manager Free Edition on my test cluster. I ran into a few problems during install so hopefully this will help you with your troubles.Cloudera Manager Free ...
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Intro to Chef

Chef is an incredible tool, but despite its beginnings in 2008/2009 it still lacks an effective quick start, or even an official “hello world” – so it takes too long to really ...
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5 things I learned from a Hacker attack

On Friday evening I got an e-mail from my provider. They told me my webspace was subject of a hackers attack and they would shut it down until they have analysed its root cause. There ...
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Business Agility Through DevOps and Continuous Delivery

The principles of Continuous Delivery and DevOps have been around for a few years. Developers and system administrators who follow the lean-startup movement are more than familiar with ...
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Devops and Maintenance go together like Apple Pie and Ice Cream

One of the things I like about devops is that it takes on important but neglected problems in the full lifecycle of a system: making sure that the software is really ready to go into ...
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GlassFish: How to deploy a war file

Before trying this out make sure you have installed GlassFish in your machine. Installation is just easy as downloading the zip archive from here and unzipping ...
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Introduction to Puppet For Vagrant Users

I couldn’t find any good, brief, practical introduction into Puppet that gives you basic working knowledge in minimal time, so here it is. You will learn how to do the elementary ...
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DevOps: Flexible configuration management? Not so fast!

You’re in charge of establishing a department-wide deployment automation capability. Your fellow developers are excited about it, and their managers are too. There is no shortage ...
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It’s About Confidentiality and Integrity (not so much Availability)

Everyone knows the C-I-A triad for information security: security is about protecting the Confidentiality, Integrity and Availability of systems and data. In a recent ...
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