Business as usual for IT is evolving into a "Make or Buy" decision on a service-by-service conversation with input from the LOBs. How does your organization move forward with cloud? In his general session at 16th Cloud Expo, Paul Maravei, Regional Sales Manager, Hybrid Cloud and Managed Services at Cisco, discusses how Cisco and its partners offer a market-leading portfolio and ecosystem of cloud infrastructure and application services that allow you to uniquely and securely combine cloud business applications and services across multiple cloud delivery models.| By Mohamed El-Refaey | Article Rating: |
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| July 15, 2015 10:15 AM EDT | Reads: |
115 |
This post is the first in a series of blog posts that will explore and exploit the Big Data and analytics tools. I will walk through easy steps to start working with such tools like Apache Hadoop, Pig, Mahout and solve some problems related to analytics and learning in the large scale by exploiting such tools, and shed the light on some of the challenges we face while working with these tools.
1. Apache Hadoop
1.1 Overview
Hadoop is a framework that simplifies the processing of data sets distributed across clusters of servers. Two of the main components of Hadoop are HDFS and MapReduce.HDFS is the file system that is used by Hadoop to store all the data. This file system spans across all the nodes that are being used by Hadoop. These nodes could be on a single server or they can be spread across a large number of servers.In this section, we will go through the instruction of how to get the Hadoop up and running with the configurations needed to make it useful for other components/frameworks that integrate or depends on Hadoop (e.g. Hive, Pig, HBase etc.).
Note: The installation will be a Pseudo distribution.
1.2 Tools and Versions
I've used the following tools and versions throughout this installation:
- Ubuntu 14.04 LTS
- Java 1.7.0_65 (java-7-openjdk-amd64)
- Hadoop 2.5.1
1.3 Installation and Configurations
1. Install Java using the following command:
| apt-get update apt-get install default-jdk |
2. Create Security Keys using the following commands:
| ssh-keygen -t rsa -P ' ' cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys |
3. Download Hadoop tar file using:
| wget http://www.webhostingreviewjam.com/mirror/apache/hadoop/common/hadoop-2.5.1/hadoop-2.5.1.tar.gz |
4. Extract the tar file using:
| tar -xzvf hadoop-2.5.1.tar.gz |
5. Move the extracted files into a location you can easily recognize, and easily change the version used without much modifications using:
| mv hadoop-2.5.1/ /usr/local/hadoop |
6. Configure the following environment variables in the bashrc file (to make sure every time they are set with the machine sartup):
| #HADOOP VARIABLES START export JAVA_HOME=/usr/lib/jvm/java-7-openjdk-amd64 export HADOOP_INSTALL=/usr/local/hadoop export PATH=$PATH:$HADOOP_INSTALL/bin export PATH=$PATH:$HADOOP_INSTALL/sbin export HADOOP_MAPRED_HOME=$HADOOP_INSTALL export HADOOP_COMMON_HOME=$HADOOP_INSTALL export HADOOP_HDFS_HOME=$HADOOP_INSTALL export YARN_HOME=$HADOOP_INSTALL export HADOOP_COMMON_LIB_NATIVE_DIR=$HADOOP_INSTALL/lib/native export HADOOP_OPTS="-Djava.library.path=$HADOOP_INSTALL/lib" #HADOOP VARIABLES END |
7. Source the bashrc file after changes, for the system to recognize the changes using the following command:
| source ~/.bashrc |
8. Edit the Hadoop-env.sh using vim:
| vim /usr/local/hadoop/etc/hadoop/hadoop-env.sh |
The hadoop-env.sh file should look like this: That will make the value of the JAVA_HOME always available to Hadoop whenever it starts. |
9- Edit the core-site.xml file using vim as well:
| vim /usr/local/hadoop/etc/hadoop/core-site.xml |
The file will look like:![]() |
10- Edit the YARN file yarn-site.xml as follows:
| vim /usr/local/hadoop/etc/hadoop/yarn-site.xml |
The file will look like:![]() |
11. Create and edit the mapred-site.xml file:
| vim /usr/local/hadoop/etc/hadoop/mapred-site.xml |
The file will contains the following property, that specify which framework will be used for MapReduce: |
12. Edit the hdfs-site.xml file, in order to specify the directories that will be used as datanode and namenode on that server.
13.Forma t the new Hadoop file system using the following command:
| hdfs namenode -format Note: This operation needs to be done once before we start using Hadoop. If it is executed again after Hadoop has been used, it'll destroy all the data on the Hadoop filesystem. |
14. Now, all configurations are done, we can start using Hadoop, we should first run the following shell scripts:
| start-dfs.sh start-yarn.sh |
And to make sure everything is okay, and the right process is running, run the command jps and see the following: |
15- We can run MapReduce examples that exist in Hadoop bundle, but we need to run the following:
| We should create the HDFS directories required to execute MapReduce jobs: hdfs dfs -mkdir /user hdfs dfs -mkdir /user/mohamed and copy the input files to be processed into the distributed filesystem: hdfs dfs -put {here is the path to the files to be copied} input |
16- We can check the web console for the resource manager, HDFS nodes and running jobs as shown in the following screens:

Issues and problems:
I've experienced some issues related to: Ø Formatting the HDFS, and I resolved it by changing permissions and ownership of the user who can format the namenode and datanode. Ø Problem connecting to the resource manager, with the following error: ipc.Client: Retrying connect to server:
0.0.0.0/0.0.0.0:8032. Already tried 0 time(s); maxRetries=45
INFO client.RMProxy: Connecting to ResourceManager at /0.0.0.0:8032 And I resolved it by: adding a few properties to yarn-site.xml :
We reached to the end of our first post on big data and analytics, hope you enjoyed reading it and experiminting with Hadoop installation and configuration. next post will be about Apache Pig.
Read the original blog entry...
Published July 15, 2015 Reads 115
Copyright © 2015 SYS-CON Media, Inc. — All Rights Reserved.
Syndicated stories and blog feeds, all rights reserved by the author.
More Stories By Mohamed El-Refaey
Work as head of research and development at EDC (Egypt Development Center) a member of NTG. previously worked for Qlayer, Acquired by (Sun Microsystems), when my passion about cloud computing domain started. with more than 10 years of experience in software design and development in e-commerce, BPM, EAI, Web 2.0, Banking applications, financial market, Java and J2EE. HIPAA, SOX, BPEL and SOA, and late two year focusing on virtualization technology and cloud computing in studies, technical papers and researches, and international group participation and events. I've been awarded in recognition of innovation and thought leadership while working as IT Specialist at EDS (an HP Company). Also a member of the Cloud Computing Interoperability Forum (CCIF) and member of the UCI (Unified Cloud Interface) open source project, in which he contributed with the project architecture.
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There will be 150 billion connected devices by 2020. New digital businesses have already disrupted value chains across every industry. APIs are at the center of the digital business. You need to understand what assets you have that can be exposed digitally, what their digital value chain is, and how to create an effective business model around that value chain to compete in this economy. No enterprise can be complacent and not engage in the digital economy. Learn how to be the disruptor and not the disruptee.
In his keynote at 16th Cloud Expo, Rodney Rogers, CEO of Virtustream, discussed the evolution of the company from inception to its recent acquisition by EMC – including personal insights, lessons learned (and some WTF moments) along the way. Learn how Virtustream’s unique approach of combining the economics and elasticity of the consumer cloud model with proper performance, application automation and security into a platform became a breakout success with enterprise customers and a natural fit for the EMC Federation.
SYS-CON Events announced today that HPM Networks will exhibit at the 17th International Cloud Expo®, which will take place on November 3–5, 2015, at the Santa Clara Convention Center in Santa Clara, CA.
For 20 years, HPM Networks has been integrating technology solutions that solve complex business challenges. HPM Networks has designed solutions for both SMB and enterprise customers throughout the San Francisco Bay Area.
SYS-CON Events announced today that Dyn, the worldwide leader in Internet Performance, will exhibit at SYS-CON's 17th International Cloud Expo®, which will take place on November 3-5, 2015, at the Santa Clara Convention Center in Santa Clara, CA.
Dyn is a cloud-based Internet Performance company. Dyn helps companies monitor, control, and optimize online infrastructure for an exceptional end-user experience. Through a world-class network and unrivaled, objective intelligence into Internet conditions, Dyn ensures traffic gets delivered faster, safer, and more reliably than ever.
The enterprise market will drive IoT device adoption over the next five years.
In his session at @ThingsExpo, John Greenough, an analyst at BI Intelligence, division of Business Insider, analyzed how companies will adopt IoT products and the associated cost of adopting those products.
John Greenough is the lead analyst covering the Internet of Things for BI Intelligence- Business Insider’s paid research service. Numerous IoT companies have cited his analysis of the IoT. Prior to joining BI Intelligence, he worked analyzing bank technology for Corporate Insight and The Clearing House Payment...
In his General Session at 16th Cloud Expo, David Shacochis, host of The Hybrid IT Files podcast and Vice President at CenturyLink, investigated three key trends of the “gigabit economy" though the story of a Fortune 500 communications company in transformation.
Narrating how multi-modal hybrid IT, service automation, and agile delivery all intersect, he will cover the role of storytelling and empathy in achieving strategic alignment between the enterprise and its information technology.
SYS-CON Events announced today that ProfitBricks, the provider of painless cloud infrastructure, will exhibit at SYS-CON's 17th International Cloud Expo®, which will take place on November 3–5, 2015, at the Santa Clara Convention Center in Santa Clara, CA.
ProfitBricks is the IaaS provider that offers a painless cloud experience for all IT users, with no learning curve. ProfitBricks boasts flexible cloud servers and networking, an integrated Data Center Designer tool for visual control over the cloud and the best price/performance value available. ProfitBricks was named one of the coolest Clo...
The Internet of Things is not only adding billions of sensors and billions of terabytes to the Internet. It is also forcing a fundamental change in the way we envision Information Technology. For the first time, more data is being created by devices at the edge of the Internet rather than from centralized systems. What does this mean for today's IT professional?
In this Power Panel at @ThingsExpo, moderated by Conference Chair Roger Strukhoff, panelists addressed this very serious issue of profound change in the industry.
It is one thing to build single industrial IoT applications, but what will it take to build the Smart Cities and truly society-changing applications of the future? The technology won’t be the problem, it will be the number of parties that need to work together and be aligned in their motivation to succeed.
In his session at @ThingsExpo, Jason Mondanaro, Director, Product Management at Metanga, discussed how you can plan to cooperate, partner, and form lasting all-star teams to change the world and it starts with business models and monetization strategies.
Explosive growth in connected devices. Enormous amounts of data for collection and analysis. Critical use of data for split-second decision making and actionable information. All three are factors in making the Internet of Things a reality. Yet, any one factor would have an IT organization pondering its infrastructure strategy.
How should your organization enhance its IT framework to enable an Internet of Things implementation? In his session at @ThingsExpo, James Kirkland, Red Hat's Chief Architect for the Internet of Things and Intelligent Systems, described how to revolutionize your archit...
Discussions about cloud computing are evolving into discussions about enterprise IT in general. As enterprises increasingly migrate toward their own unique clouds, new issues such as the use of containers and microservices emerge to keep things interesting.
In this Power Panel at 16th Cloud Expo, moderated by Conference Chair Roger Strukhoff, panelists addressed the state of cloud computing today, and what enterprise IT professionals need to know about how the latest topics and trends affect their organization.
The Internet of Everything (IoE) brings together people, process, data and things to make networked connections more relevant and valuable than ever before – transforming information into knowledge and knowledge into wisdom. IoE creates new capabilities, richer experiences, and unprecedented opportunities to improve business and government operations, decision making and mission support capabilities.
SYS-CON Events announced today that CommVault has been named “Bronze Sponsor” of SYS-CON's 17th International Cloud Expo®, which will take place on November 3–5, 2015, at the Santa Clara Convention Center in Santa Clara, CA. A singular vision – a belief in a better way to address current and future data management needs – guides CommVault in the development of Singular Information Management® solutions for high-performance data protection, universal availability and simplified management of data on complex storage networks. CommVault's exclusive single-platform architecture gives companies unp...
For IoT to grow as quickly as analyst firms’ project, a lot is going to fall on developers to quickly bring applications to market. But the lack of a standard development platform threatens to slow growth and make application development more time consuming and costly, much like we’ve seen in the mobile space.
In his session at @ThingsExpo, Mike Weiner, Product Manager of the Omega DevCloud with KORE Telematics Inc., discussed the evolving requirements for developers as IoT matures and conducted a live demonstration of how quickly application development can happen when the need to comply wit...
Akana has released Envision, an enhanced API analytics platform that helps enterprises mine critical insights across their digital eco-systems, understand their customers and partners and offer value-added personalized services.
“In today’s digital economy, data-driven insights are proving to be a key differentiator for businesses. Understanding the data that is being tunneled through their APIs and how it can be used to optimize their business and operations is of paramount importance,” said Alistair Farquharson, CTO of Akana.
Buzzword alert: Microservices and IoT at a DevOps conference? What could possibly go wrong?
In this Power Panel at DevOps Summit, moderated by Jason Bloomberg, the leading expert on architecting agility for the enterprise and president of Intellyx, panelists peeled away the buzz and discuss the important architectural principles behind implementing IoT solutions for the enterprise. As remote IoT devices and sensors become increasingly intelligent, they become part of our distributed cloud environment, and we must architect and code accordingly. At the very least, you'll have no problem fillin...
"Optimal Design is a technology integration and product development firm that specializes in connecting devices to the cloud," stated Joe Wascow, Co-Founder & CMO of Optimal Design, in this SYS-CON.tv interview at @ThingsExpo, held June 9-11, 2015, at the Javits Center in New York City.
Internet of Things is moving from being a hype to a reality. Experts estimate that internet connected cars will grow to 152 million, while over 100 million internet connected wireless light bulbs and lamps will be operational by 2020. These and many other intriguing statistics highlight the importance of Internet powered devices and how market penetration is going to multiply many times over in the next few years.
Approved this February by the Internet Engineering Task Force (IETF), HTTP/2 is the first major update to HTTP since 1999, when HTTP/1.1 was standardized. Designed with performance in mind, one of the biggest goals of HTTP/2 implementation is to decrease latency while maintaining a high-level compatibility with HTTP/1.1. Though not all testing activities will be impacted by the new protocol, it's important for testers to be aware of any changes moving forward.
I have seen a lot of billion dollar valuations lately that have left me scratching my head. Many of those are in the B2C or social media space where companies are measured more on “eyeballs” (the number of active users) and less on things like revenue or business models. So after Docker cracked the billion dollar club with a $95M round I decided to research exactly what it is about containers that could drive this type of valuation.
Rapid innovation, changing business landscapes, and new IT demands force businesses to make changes quickly. The DevOps approach is a way to increase business agility through collaboration, communication, and integration across different teams in the IT organization.
In his session at DevOps Summit, Chris Van Tuin, Chief Technologist for the Western US at Red Hat, will discuss:
The acceleration of application delivery for the business with DevOps
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Right from the opening keynote by the founder of Jenkins, Kohsuke Kawaguchi, this conference was jam-packed with all the latest capabilities of Jenkins, including discussi...
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Providing the needed data for application development and testing is a huge headache for most organizations. The problems are often the same across companies - speed, quality, cost, and control. Provisioning data can take days or weeks, every time a refresh is required. Using dummy data leads to quality problems. Creating physical copies of large data sets and sending them to distributed teams of developers eats up expensive storage and bandwidth resources. And, all of these copies proliferating...
If you believe Gartner, IT is now bimodal. Slow, traditional IT continues its slog, following policies and procedures from the last century, while fast, digital, devops-driven technology efforts run circles around the old guard. Furthermore, Gartner says, this bimodal approach to IT is OK. Some things you want to do fast, but other things are best tackled slowly, like a pot roast.
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There's a lot of things we do to improve the performance of web and mobile applications. We use caching. We use compression. We offload security (SSL and TLS) to a proxy with greater compute capacity.
We apply image optimization and minification to content.
We do all that because performance is king. Failure to perform can be, for many businesses, equivalent to an outage with increased abandonment rates and angry customers taking to the Internet to express their extreme displeasure. 


























