|By Ranko Mosic||
|December 27, 2012 02:02 PM EST||
( For latest information on Oracle 12c database update please refer to the following article: Oracle 12c Database and How It Relates to SAP Hana )
RDBMSs are stable and mature products. While there is nothing radically new on horizon that would challenge Codd's relational theory and related advances in data processing there are some developments that force established vendors like Oracle to come up with new features and products.
Column Stores and Oracle
Column store concept has been around for quite a while. Vendors like HP Vertica grabbed some market share in data warehousing segment with their column store, MPP databases. Oracle Exadata is offering Hybrid Columnar Compression - solution that modifies Oracle standard row based storage (NSM, or row-major) into proprietary format that is probably closer to PAX (as opposed to DSM) classification. Rows of data are reorganized, broken down into columns, compressed and stored in Compression Units which consist of multiple Oracle data blocks. CU is physically implemented as a standard Oracle single column chained row. (Description of CU layout is based on marvelous article written by Oracle expert Jonathan Lewis).
This is truly hybrid design, i.e., column store is implemented on top of a standard row store.
It is not in the scope of this article to discuss pros and cons of this implementation from performance, locking, compression and other points of view. I will just mention that HCC requires change in standard operating procedures and methods.
MPP (shared nothing) and Oracle
Column-based stores like HP Vertica use Multiple Parallel Processing, shared nothing design to enhance performance by bringing processing closer to data, i.e., data is processed in parallel on the node where it resides. Volume of data that is moved around is reduced with the additional benefit of CPU and data proximity.
Oracle's implementation of this idea could be classified as asymmetric MPP. Oracle Exadata uses offloading to storage layer, Smart Scan, Storage Indexes and other techniques to improve performance.
Storage layer (Exadata cells) are tasked with as much work as possible to reduce load on database server and network. Each Exadata storage cell has the ability to perform some parts of data processing operations as well as decompression.
IMDB and Oracle
SAP relatively recently released Hana - a fully functional in-memory RDBMS, targeted for both OLTP and OLAP applications. Hana operates on the premise that whole database is in memory and not on disk. Majority of data processing is now pointer based arithmetic, so whole sections of RDBMS code related to moving data back and forth between disk, RAM and CPU are not needed any more. This is all possible because memory is more affordable and abundant, so much so that most of modern OLTP databases can completely fit within modern server's RAM.
Oracle puchased Times Ten in-memory database, but marketed it mostly as caching layer to standard Oracle database. Times Ten is not marketed as stand alone IMDB the way SAP Hana is.
Oracle database can have Flash Cache devices configured as an extension of SGA for better performance (via database parameter), or for database logging purposes.
Exadata can be configured with terabytes of Flash Cache memory for database caching and to serve as solid state disk. This is not memory directly accessible by CPU though ( DRAM ), i.e., Oracle database accesses Flash Cache via PCI interface and IO operating system calls. In other words, Flash is treated the same as disk, with all negative consequences of such approach regarding code complexity and performance. The latest release of Exadata performs writes directly to flash cache first to improve performance. We should expect more optimizations that will try to better utilize abundance of various types of memory. Expected scenario could be similar to Microsoft Hekaton project is also about adding IMDB features to SQL Server ( tables can be loaded in memory and processed in IMDB fashion, with reduced latching and locking; perhaps choice between different storage engines will be possible).
Oracle will probably continue to execute on strategy that worked well in the past - gradual inclusion of new technologies into its core RDBMS product (like it did with programmable server, OODBMS, Internet database, XML, partitioning, etc.). None of the latest developments in server technologies and database world is as seismic as introduction of RDBMS, client-server and Internet computing was. Oracle was so far successful in modifying its database engine to adjust to the changes in hardware and data processing methods. We expect this trend to continue, as pace of technological innovation is somewhat slowing down and no truly disruptive changes are on horizon. Oracle solutions are designed to introduce and take advantage of these new (old) technologies and avoid cannibalizing existing profits. Intent is to maximally protect existing legacy RDBMS software revenues and integrate and sell products that came with new hardware and software acquisitions. Oracle Exadata, for example, could be viewed just as intelligent, Oracle database aware and Oracle produced SAN, bundled with database server. It is perhaps safe strategy in an environment where even mediocre and lackluster repackaging, modifying and integrating acquisitions is not seriously challenged by radical new ideas or strong, competitive implementations of existing concepts and technologies. SAP Hana, for example, is also unification layer built on top of in-house built or acquired products.
The 5th International DevOps Summit, co-located with 17th International Cloud Expo – being held November 3-5, 2015, at the Santa Clara Convention Center in Santa Clara, CA – announces that its Call for Papers is open. Born out of proven success in agile development, cloud computing, and process automation, DevOps is a macro trend you cannot afford to miss. From showcase success stories from early adopters and web-scale businesses, DevOps is expanding to organizations of all sizes, including the world's largest enterprises – and delivering real results. Among the proven benefits, DevOps is corr...
Jul. 5, 2015 10:15 AM EDT Reads: 1,223
17th Cloud Expo, taking place Nov 3-5, 2015, at the Santa Clara Convention Center in Santa Clara, CA, will feature technical sessions from a rock star conference faculty and the leading industry players in the world. Cloud computing is now being embraced by a majority of enterprises of all sizes. Yesterday's debate about public vs. private has transformed into the reality of hybrid cloud: a recent survey shows that 74% of enterprises have a hybrid cloud strategy. Meanwhile, 94% of enterprises are using some form of XaaS – software, platform, and infrastructure as a service.
Jul. 5, 2015 10:00 AM EDT Reads: 1,199
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.
Jul. 5, 2015 09:30 AM EDT Reads: 1,579
SYS-CON Events announced today that Secure Infrastructure & Services 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. Secure Infrastructure & Services (SIAS) is a managed services provider of cloud computing solutions for the IBM Power Systems market. The company helps mid-market firms built on IBM hardware platforms to deploy new levels of reliable and cost-effective computing and high availability solutions, leveraging the cloud and the benefits of Infrastructure-as-a-Service (IaaS...
Jul. 5, 2015 09:00 AM EDT Reads: 1,460
Internet of Things (IoT) will be a hybrid ecosystem of diverse devices and sensors collaborating with operational and enterprise systems to create the next big application. In their session at @ThingsExpo, Bramh Gupta, founder and CEO of robomq.io, and Fred Yatzeck, principal architect leading product development at robomq.io, discussed how choosing the right middleware and integration strategy from the get-go will enable IoT solution developers to adapt and grow with the industry, while at the same time reduce Time to Market (TTM) by using plug and play capabilities offered by a robust IoT ...
Jul. 5, 2015 09:00 AM EDT Reads: 2,380
"We have a tagline - "Power in the API Economy." What that means is everything that is built in applications and connected applications is done through APIs," explained Roberto Medrano, Executive Vice President at Akana, in this SYS-CON.tv interview at 16th Cloud Expo, held June 9-11, 2015, at the Javits Center in New York City.
Jul. 4, 2015 12:30 PM EDT Reads: 1,424
The 17th International Cloud Expo has announced that its Call for Papers is open. 17th International Cloud Expo, to be held November 3-5, 2015, at the Santa Clara Convention Center in Santa Clara, CA, brings together Cloud Computing, APM, APIs, Microservices, Security, Big Data, Internet of Things, DevOps and WebRTC to one location. With cloud computing driving a higher percentage of enterprise IT budgets every year, it becomes increasingly important to plant your flag in this fast-expanding business opportunity. Submit your speaking proposal today!
Jul. 4, 2015 12:30 PM EDT Reads: 1,224
The basic integration architecture, as defined by ESBs, hasn’t changed for more than a decade. Most cloud integration providers still rely on an ESB architecture and their proprietary connectors. As a result, enterprise integration projects suffer from constraints of availability and reliability of these connectors that are not re-usable across other integration vendors. However, the rapid adoption of APIs and almost ubiquitous availability of APIs amongst most SaaS and Cloud applications are rapidly redefining traditional integration approaches and their reliance on proprietary connectors. ...
Jul. 4, 2015 12:00 PM EDT Reads: 1,117
Today air travel is a minefield of delays, hassles and customer disappointment. Airlines struggle to revitalize the experience. GE and M2Mi will demonstrate practical examples of how IoT solutions are helping airlines bring back personalization, reduce trip time and improve reliability. In their session at @ThingsExpo, Shyam Varan Nath, Principal Architect with GE, and Dr. Sarah Cooper, M2Mi’s VP Business Development and Engineering, will explore the IoT cloud-based platform technologies driving this change including privacy controls, data transparency and integration of real time context wi...
Jul. 4, 2015 09:00 AM EDT Reads: 1,469
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.
Jul. 4, 2015 09:00 AM EDT Reads: 2,356
WebRTC converts the entire network into a ubiquitous communications cloud thereby connecting anytime, anywhere through any point. In his session at WebRTC Summit,, Mark Castleman, EIR at Bell Labs and Head of Future X Labs, will discuss how the transformational nature of communications is achieved through the democratizing force of WebRTC. WebRTC is doing for voice what HTML did for web content.
Jul. 4, 2015 08:45 AM EDT Reads: 1,128
To many people, IoT is a buzzword whose value is not understood. Many people think IoT is all about wearables and home automation. In his session at @ThingsExpo, Mike Kavis, Vice President & Principal Cloud Architect at Cloud Technology Partners, discussed some incredible game-changing use cases and how they are transforming industries like agriculture, manufacturing, health care, and smart cities. He will discuss cool technologies like smart dust, robotics, smart labels, and much more. Prepare to be blown away with a glimpse of the future.
Jul. 4, 2015 08:30 AM EDT Reads: 1,282
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...
Jul. 4, 2015 07:00 AM EDT Reads: 1,171
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.
Jul. 3, 2015 12:00 PM EDT Reads: 2,428
SYS-CON Events announced today that BMC will exhibit at SYS-CON's 16th International Cloud Expo®, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. BMC delivers software solutions that help IT transform digital enterprises for the ultimate competitive business advantage. BMC has worked with thousands of leading companies to create and deliver powerful IT management services. From mainframe to cloud to mobile, BMC pairs high-speed digital innovation with robust IT industrialization – allowing customers to provide amazing user experiences with optimized IT per...
Jun. 29, 2015 12:15 PM EDT Reads: 2,849
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.
Jun. 29, 2015 11:00 AM EDT Reads: 2,290
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 will addresses this very serious issue of profound change in the industry.
Jun. 29, 2015 09:45 AM EDT Reads: 2,642
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.
Jun. 28, 2015 11:00 AM EDT Reads: 2,346
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.
Jun. 27, 2015 10:00 AM EDT Reads: 2,357
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...
Jun. 26, 2015 12:00 PM EDT Reads: 2,360