|By Jeremy Geelan||
|December 1, 2008 03:00 PM EST||
Cloud-based tools, including large-scale data-intensive computing as offered by Hadoop, are key to the rise and rise of cloud computing. In this wide-ranging Exclusive Q&A with SYS-CON's Cloud Computing Journal, the Director of Grid Services at Yahoo! - Rob Weltman - explains to Jeremy Geelan, Conference Chair of SYS-CON's 1st International Cloud Computing Conference & Expo held last week in San Jose, CA, how analyzing and learning from ever-growing volumes of business data is essential to continuously refining and improving service offerings.
Cloud Computing Journal: Yahoo! has been the largest contributor to the Hadoop project and uses Hadoop extensively in its Web search and advertising businesses. Can you explain a little of the background to that?
Rob Weltman: Yahoo! Search (and before it Inktomi) was a pioneer in using large clusters of commodity computers to speed up the crawling and indexing of Web sites. While working on the architecture and design of the next generation of Web Search crawling and indexing, we came in touch with Doug Cutting and the open source Lucene project for text indexing/search. Lucene contained a distributed file system with integrated computation using the map-reduce paradigm. It looked very promising and appropriate for many data-intensive applications. Hadoop was then split out as its own project. Yahoo! supported Hadoop in a big way, both in contributing to its development as an open source project and in applying it to solve many large-scale data/computation problems in the company.
Hadoop has matured at an amazingly fast pace. From a 20-node cluster two years ago, to many 2,000-node clusters today; from a somewhat embarrassing terasort (a benchmark) performance to the terasort leader; from a no-access control to user- and group-owned files and directories. There is now a high-level language - Pig - that allows you to express complex operations on data in an intuitive way and have them translated into Hadoop map-reduce jobs.
In 2007, Hadoop at Yahoo! was used primarily for research - analyzing enormous volumes of data to find the best algorithms and parameters for selecting search results or ads to present to users. Now it is also a central component in many production operations, including Web Search, ad serving, and personalization.
Cloud Computing Journal: Are cloud-based tools like Hadoop the most important kinds of tools for the future, do you think?
RW: Being able to add capacity as needed without major software or infrastructure changes is clearly important for many organizations. Sharing resources and dynamically allocating more or less to various functions on demand is highly attractive as companies strive to control costs while the computing needs grow and shift. Analyzing and learning from ever-growing volumes of business data is essential to continuously refining and improving service offerings. The ability to quickly explore new algorithms and put them into production will be a competitive advantage for those with the resources to apply them. All of these speak to the importance of Cloud Computing,
Cloud Computing Journal: How important a role does Java play in the project? Is that because of the need to scale horizontally (and massively)?
RW: Hadoop supports programming and scripting in many languages. Hadoop, itself, is written in Java. The language provides strong support for the central infrastructure needs of system and network programming. There is a large body of experience in developing robust, performance-optimized, scalable platforms in Java.
Java provides portability to many hardware and software environments however Hadoop's horizontal scalability is not a result of the choice of language but rather of a design that is strongly focused on fault-tolerance and distribution.
Cloud Computing Journal: Is the Yahoo! Search Webmap still the world's largest Hadoop production application so far as you are aware? Can you share some size data about Webmap with us?
RW: Yes, as far as I know, the Yahoo! WebMap is the largest Hadoop application in production. It uses 2,000+ computers and is still continuously growing. It produces 300TB of data per run, including 1.2 trillion links.
Cloud Computing Journal: How important are Hadoop clusters to Yahoo! Overall? Do your Web search queries depend on them?
RW: Hadoop isn't directly involved in responding to queries typed in by users, but it is responsible for much of the backend work that produces the indexes used to service those queries. If the Hadoop clusters were down, the quality of search results would quickly degrade as the indexes became stale.
Cloud Computing Journal: Who else besides Yahoo! uses Hadoop to run large distributed computations?
RW: Many of the major Hadoop users are listed at http://wiki.apache.org/hadoop/PoweredBy. Facebook has several hundred nodes in a cluster for backend processing and analysis. Quantcast has several thousand cores in a very large cluster. Many companies, including AOL, A9 (Amazon), and IBM have deployed somewhat smaller clusters. It's likely that almost all of the uses involve large quantities of data.
Cloud Computing Journal: Can Hadoop be run on Amazon EC2?
RW: Absolutely! There is a ready-to-run AMI (virtual machine definition for EC2) for Hadoop. Among many others, Powerset (now owned by Microsoft) runs on EC2.
Cloud Computing Journal: What about Sun's Grid Engine - can it also be run on that?
RW: Yes, Hadoop works with Sun's Grid Engine but you lose the benefit of data locality (putting the computation of each piece of a distributed job near the data needed by that piece).
Cloud Computing Journal: Does the Hadoop team have any kind of a blog or forum?
RW: We have a blog at http://developer.yahoo.net/blogs/hadoop/. The team is also heavily engaged in the user and developer Hadoop mailing lists at hadoop.apache.org.
Cloud Computing Journal: Doug Cutting named it after his child's stuffed elephant. Is there any downside to an Enterprise IT tool having the name of a stuffed elephant?
RW: I did get some ribbing during the election period when I wore my Hadoop Summit t-shirt with the elephant on it, but I was able to clarify Hadoop's open source and non-partisan nature.
Cloud Computing Journal: What else have you and your team developed at Yahoo!, in terms of data-analytics applications for example?
RW: The Grid Computing development team at Yahoo! works on the Hadoop core software, the Pig high-level language, the ZooKeeper distributed coordination service, and the Chukwa monitoring and metric analysis system. In addition, it provides various Hadoop add-ons and tools to e.g. facilitate joining of very large data sets or to understand and improve the performance and efficiency of Hadoop jobs. We provide consulting to application teams that develop large-scale Hadoop programs (often involving feature extraction, modeling, optimization, and index creation) but do not produce them ourselves.
SYS-CON Events announced today that Enzu will exhibit at the 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. Enzu’s mission is to be the leading provider of enterprise cloud solutions worldwide. Enzu enables online businesses to use its IT infrastructure to their competitive advantage. By offering a suite of proven hosting and management services, Enzu wants companies to focus on the core of their online busine...
Oct. 28, 2016 07:30 PM EDT Reads: 1,489
Join IBM November 2 at 19th Cloud Expo at the Santa Clara Convention Center in Santa Clara, CA, and learn how to go beyond multi-speed it to bring agility to traditional enterprise applications. Technology innovation is the driving force behind modern business and enterprises must respond by increasing the speed and efficiency of software delivery. The challenge is that existing enterprise applications are expensive to develop and difficult to modernize. This often results in what Gartner calls...
Oct. 28, 2016 07:00 PM EDT Reads: 397
WebRTC sits at the intersection between VoIP and the Web. As such, it poses some interesting challenges for those developing services on top of it, but also for those who need to test and monitor these services. In his session at WebRTC Summit, Tsahi Levent-Levi, co-founder of testRTC, reviewed the various challenges posed by WebRTC when it comes to testing and monitoring and on ways to overcome them.
Oct. 28, 2016 07:00 PM EDT Reads: 4,243
The explosion of new web/cloud/IoT-based applications and the data they generate are transforming our world right before our eyes. In this rush to adopt these new technologies, organizations are often ignoring fundamental questions concerning who owns the data and failing to ask for permission to conduct invasive surveillance of their customers. Organizations that are not transparent about how their systems gather data telemetry without offering shared data ownership risk product rejection, regu...
Oct. 28, 2016 07:00 PM EDT Reads: 409
Bert Loomis was a visionary. This general session will highlight how Bert Loomis and people like him inspire us to build great things with small inventions. In their general session at 19th Cloud Expo, Harold Hannon, Architect at IBM Bluemix, and Michael O'Neill, Strategic Business Development at Nvidia, will discuss the accelerating pace of AI development and how IBM Cloud and NVIDIA are partnering to bring AI capabilities to "every day," on-demand. They will also review two "free infrastruct...
Oct. 28, 2016 06:30 PM EDT Reads: 381
WebRTC defines no default signaling protocol, causing fragmentation between WebRTC silos. SIP and XMPP provide possibilities, but come with considerable complexity and are not designed for use in a web environment. In his session at @ThingsExpo, Matthew Hodgson, technical co-founder of the Matrix.org, discussed how Matrix is a new non-profit Open Source Project that defines both a new HTTP-based standard for VoIP & IM signaling and provides reference implementations.
Oct. 28, 2016 06:15 PM EDT Reads: 2,939
Smart Cities are here to stay, but for their promise to be delivered, the data they produce must not be put in new siloes. In his session at @ThingsExpo, Mathias Herberts, Co-founder and CTO of Cityzen Data, will deep dive into best practices that will ensure a successful smart city journey.
Oct. 28, 2016 05:30 PM EDT Reads: 3,331
November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. Penta Security is a leading vendor for data security solutions, including its encryption solution, D’Amo. By using FPE technology, D’Amo allows for the implementation of encryption technology to sensitive data fields without modification to schema in the database environment. With businesses having their data become increasingly more complicated in their mission-critical applications (such as ERP, CRM, HRM), continued ...
Oct. 28, 2016 04:30 PM EDT Reads: 1,230
Two weeks ago (November 3-5), I attended the Cloud Expo Silicon Valley as a speaker, where I presented on the security and privacy due diligence requirements for cloud solutions. Cloud security is a topical issue for every CIO, CISO, and technology buyer. Decision-makers are always looking for insights on how to mitigate the security risks of implementing and using cloud solutions. Based on the presentation topics covered at the conference, as well as the general discussions heard between sessi...
Oct. 28, 2016 04:30 PM EDT Reads: 5,256
In his general session at 18th Cloud Expo, Lee Atchison, Principal Cloud Architect and Advocate at New Relic, discussed cloud as a ‘better data center’ and how it adds new capacity (faster) and improves application availability (redundancy). The cloud is a ‘Dynamic Tool for Dynamic Apps’ and resource allocation is an integral part of your application architecture, so use only the resources you need and allocate /de-allocate resources on the fly.
Oct. 28, 2016 04:00 PM EDT Reads: 3,878
SYS-CON Events announced today that Cloudbric, a leading website security provider, will exhibit at the 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. Cloudbric is an elite full service website protection solution specifically designed for IT novices, entrepreneurs, and small and medium businesses. First launched in 2015, Cloudbric is based on the enterprise level Web Application Firewall by Penta Security Sys...
Oct. 28, 2016 03:15 PM EDT Reads: 1,385
Virgil consists of an open-source encryption library, which implements Cryptographic Message Syntax (CMS) and Elliptic Curve Integrated Encryption Scheme (ECIES) (including RSA schema), a Key Management API, and a cloud-based Key Management Service (Virgil Keys). The Virgil Keys Service consists of a public key service and a private key escrow service.
Oct. 28, 2016 02:30 PM EDT Reads: 1,250
Data is the fuel that drives the machine learning algorithmic engines and ultimately provides the business value. In his session at Cloud Expo, Ed Featherston, a director and senior enterprise architect at Collaborative Consulting, will discuss the key considerations around quality, volume, timeliness, and pedigree that must be dealt with in order to properly fuel that engine.
Oct. 28, 2016 02:15 PM EDT Reads: 4,036
SYS-CON Events announced today that MathFreeOn will exhibit at the 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. MathFreeOn is Software as a Service (SaaS) used in Engineering and Math education. Write scripts and solve math problems online. MathFreeOn provides online courses for beginners or amateurs who have difficulties in writing scripts. In accordance with various mathematical topics, there are more tha...
Oct. 28, 2016 02:00 PM EDT Reads: 1,227
In an era of historic innovation fueled by unprecedented access to data and technology, the low cost and risk of entering new markets has leveled the playing field for business. Today, any ambitious innovator can easily introduce a new application or product that can reinvent business models and transform the client experience. In their Day 2 Keynote at 19th Cloud Expo, Mercer Rowe, IBM Vice President of Strategic Alliances, and Raejeanne Skillern, Intel Vice President of Data Center Group and ...
Oct. 28, 2016 01:45 PM EDT Reads: 1,728
The best way to leverage your Cloud Expo presence as a sponsor and exhibitor is to plan your news announcements around our events. The press covering Cloud Expo and @ThingsExpo will have access to these releases and will amplify your news announcements. More than two dozen Cloud companies either set deals at our shows or have announced their mergers and acquisitions at Cloud Expo. Product announcements during our show provide your company with the most reach through our targeted audiences.
Oct. 28, 2016 01:30 PM EDT Reads: 5,203
@ThingsExpo has been named the Top 5 Most Influential Internet of Things Brand by Onalytica in the ‘The Internet of Things Landscape 2015: Top 100 Individuals and Brands.' Onalytica analyzed Twitter conversations around the #IoT debate to uncover the most influential brands and individuals driving the conversation. Onalytica captured data from 56,224 users. The PageRank based methodology they use to extract influencers on a particular topic (tweets mentioning #InternetofThings or #IoT in this ...
Oct. 28, 2016 01:15 PM EDT Reads: 8,656
There is growing need for data-driven applications and the need for digital platforms to build these apps. In his session at 19th Cloud Expo, Muddu Sudhakar, VP and GM of Security & IoT at Splunk, will cover different PaaS solutions and Big Data platforms that are available to build applications. In addition, AI and machine learning are creating new requirements that developers need in the building of next-gen apps. The next-generation digital platforms have some of the past platform needs a...
Oct. 28, 2016 01:00 PM EDT Reads: 2,430
"We've discovered that after shows 80% if leads that people get, 80% of the conversations end up on the show floor, meaning people forget about it, people forget who they talk to, people forget that there are actual business opportunities to be had here so we try to help out and keep the conversations going," explained Jeff Mesnik, Founder and President of ContentMX, in this SYS-CON.tv interview at 18th Cloud Expo, held June 7-9, 2016, at the Javits Center in New York City, NY.
Oct. 28, 2016 01:00 PM EDT Reads: 3,730
Intelligent machines are here. Robots, self-driving cars, drones, bots and many IoT devices are becoming smarter with Machine Learning. In her session at @ThingsExpo, Sudha Jamthe, CEO of IoTDisruptions.com, will discuss the next wave of business disruption at the junction of IoT and AI, impacting many industries and set to change our lives, work and world as we know it.
Oct. 28, 2016 12:30 PM EDT Reads: 665