Building Hadoop clusters review

Building_Hadoop_Clusters

If you are interested in Hadoop technology probably this is an interesting video course you should evaluate. As you probably know, Apache Hadoop is an open-source software framework for storage and large-scale processing of data-sets on clusters of commodity hardware. All the modules in Hadoop are designed with the assumption that hardware failures are common and thus should be automatically handled in software by the framework.

Talking about the video course, we can divide the content in three main macro-sections:
1. how to create and set up a three machines cluster using Amazon EC2,
2. how to install an Hadoop cluster using Apache Ambari,
3. how to start using Hadoop cluster, in particular with Apache Hadoop User Interface (HUE).

The description of all the topics is clear and well done (Sean Mikha, the author, did a good job). All the relevant topics are always detailed before with an explanation of the logic structure and approach and only after with a demostration on how to do it in practice.

Useful also for other purposes, the creation of the virtual machines on Amazon EC2. The practical description and the step by step creation, is not limited to the server’s creation but is detailed also in what concerns the security and connection using, for example, putty ssh client.

apache hadoopIn my opinion the most relevant value of this video course is on the hidden details of the Hadoop cluster installation process. As you will see if you will decide to follow it, the tasks are quite easy to do (probably this a Sean’s merit) but the configuration details and settings are very important if you want to make it work in practice. Following the hints I’m sure every neophyte will gain days of work and lot of nights in googling. ūüėČ

Enjoy your Hadoop Cluster video course…¬†as usual by Packt Publishing.

Francesco Corti

Review of the Alfresco CMIS book by Martin Bergljung

Alfresco CMISAs you probably know (or you read it now for the first time) CMIS is an open standard that allows different ECMs to inter-operate over the Internet through the definition of a collection of services and a powerful query language (CMIS-QL), modeled along a subset of SQL.

The goal of this book is to share and explain all the basics of the CMIS, using a practical and technical approach that starts from the history (why the CMIS was born), going through the definition of the (several) services and the query language, and ending with a collection of examples describing how to use CMIS in practice.

CMISOk, CMIS is thought to make different ECMs interoperate, but the amount of different languages and examples described in this book is interesting¬†and well done. Starting from Java (with Apache Chemistry libraries), Javascript + JQuery, Groovy and (bascis of) PHP. Yes, I’m agree with you if you are thinking that the CMIS libraries are more and more than this but the description (and explanation) of the CMIS services (and examples) is all you need to understand how to approach the development using all the different languages supported (.NET, Python, ecc.).

As you can read from the title, Martin Bergljung focuses his description on Alfresco. And this is true because all the examples are developed using an Alfresco repository as referred architecture. But inside the book you can find something more about Alfresco. Personally I have found very interesting the description of the Alfresco Surf together with CMIS standard. Probably this topic is less useful for the most part of the readers (and practical cases) but is an interesting example related to the basics of the Alfresco Share application. Quite interesting also the example on how to make Alfresco and Drupal interact, using CMIS.

packt-publishingLast but not least, I read the book very easily in the first part (the more descriptive) and in the last (full of practical examples in the different languages). I think I will use the book also as manual¬†of the several CMIS services when I will develop something because I suggest you to remember that…

Standard is good!

ūüėČ

Francesco Corti

Win your free copy of the Pentaho Reporting video course

pentaho reporting video courseHold a chance to win free download link of the Pentaho Reporting video course, just by commenting this post!

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For the contest we have 2 download copies of Pentaho Reporting video course, to be given away to 2 lucky winners.

How you can win:

To win your copy of this video course, all you need to do is come up with a comment below highlighting the reason “why you would like to win this video course‚ÄĚ.

Duration of the contest & selection of winners:

The contest is valid for 2 weeks, until the¬†27-th of May, and is open to everyone. Winners will be selected on the basis of their comment posted, from the author… yes, it’s me! ūüôā

Packt Publishing videoMany thanks to Pack Publishing for the opportunity!

About the video course:

If you are a Java developer or IT professional who wants to assemble custom reporting solutions with Pentaho Reporting, this video course is ideal for you. Master the advanced concepts within Pentaho Reporting such as sub-reports, cross-tabs, data source configuration, and metadata-based reporting.

 A practical video guide, which dives directly into report generation using various techniques, offering you all of the tips and tricks needed to understand Pentaho Reporting. Learn how to create, modify, implement code, and publish professional reports that will boost your business enterprise to a completely new level.

pentaho_reporting_video_course

So, don’t be shy: leave a comment here below!

Francesco Corti