Click here to close now.


Java IoT Authors: Elizabeth White, Pat Romanski, Deep Bhattacharjee, Brad Thies, Liz McMillan

Related Topics: Java IoT, Industrial IoT, Weblogic, Eclipse, IoT User Interface, Recurring Revenue

Java IoT: Article

Column Store, In-Memory, MPP Databases and Oracle

How Oracle implements latest developments in database world

( 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.

More Stories By Ranko Mosic

Ranko Mosic, BScEng, is specializing in Big Data/Data Architecture consulting services ( database/data architecture, machine learning ). His clients are in finance, retail, telecommunications industries. Ranko is welcoming inquiries about his availability for consulting engagements and can be reached at 408-757-0053 or [email protected]

@ThingsExpo Stories
The Internet of Things is clearly many things: data collection and analytics, wearables, Smart Grids and Smart Cities, the Industrial Internet, and more. Cool platforms like Arduino, Raspberry Pi, Intel's Galileo and Edison, and a diverse world of sensors are making the IoT a great toy box for developers in all these areas. In this Power Panel at @ThingsExpo, moderated by Conference Chair Roger Strukhoff, panelists discussed what things are the most important, which will have the most profound effect on the world, and what should we expect to see over the next couple of years.
PubNub has announced the release of BLOCKS, a set of customizable microservices that give developers a simple way to add code and deploy features for realtime apps.PubNub BLOCKS executes business logic directly on the data streaming through PubNub’s network without splitting it off to an intermediary server controlled by the customer. This revolutionary approach streamlines app development, reduces endpoint-to-endpoint latency, and allows apps to better leverage the enormous scalability of PubNub’s Data Stream Network.
I recently attended and was a speaker at the 4th International Internet of @ThingsExpo at the Santa Clara Convention Center. I also had the opportunity to attend this event last year and I wrote a blog from that show talking about how the “Enterprise Impact of IoT” was a key theme of last year’s show. I was curious to see if the same theme would still resonate 365 days later and what, if any, changes I would see in the content presented.
Apps and devices shouldn't stop working when there's limited or no network connectivity. Learn how to bring data stored in a cloud database to the edge of the network (and back again) whenever an Internet connection is available. In his session at 17th Cloud Expo, Ben Perlmutter, a Sales Engineer with IBM Cloudant, demonstrated techniques for replicating cloud databases with devices in order to build offline-first mobile or Internet of Things (IoT) apps that can provide a better, faster user experience, both offline and online. The focus of this talk was on IBM Cloudant, Apache CouchDB, and ...
Microservices are a very exciting architectural approach that many organizations are looking to as a way to accelerate innovation. Microservices promise to allow teams to move away from monolithic "ball of mud" systems, but the reality is that, in the vast majority of organizations, different projects and technologies will continue to be developed at different speeds. How to handle the dependencies between these disparate systems with different iteration cycles? Consider the "canoncial problem" in this scenario: microservice A (releases daily) depends on a couple of additions to backend B (re...
With all the incredible momentum behind the Internet of Things (IoT) industry, it is easy to forget that not a single CEO wakes up and wonders if “my IoT is broken.” What they wonder is if they are making the right decisions to do all they can to increase revenue, decrease costs, and improve customer experience – effectively the same challenges they have always had in growing their business. The exciting thing about the IoT industry is now these decisions can be better, faster, and smarter. Now all corporate assets – people, objects, and spaces – can share information about themselves and thei...
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 sessions, I wanted to share some of my observations on emerging trends. As cyber security serves as a fou...
Discussions of cloud computing have evolved in recent years from a focus on specific types of cloud, to a world of hybrid cloud, and to a world dominated by the APIs that make today's multi-cloud environments and hybrid clouds possible. In this Power Panel at 17th Cloud Expo, moderated by Conference Chair Roger Strukhoff, panelists addressed the importance of customers being able to use the specific technologies they need, through environments and ecosystems that expose their APIs to make true change and transformation possible.
There are over 120 breakout sessions in all, with Keynotes, General Sessions, and Power Panels adding to three days of incredibly rich presentations and content. Join @ThingsExpo conference chair Roger Strukhoff (@IoT2040), June 7-9, 2016 in New York City, for three days of intense 'Internet of Things' discussion and focus, including Big Data's indespensable role in IoT, Smart Grids and Industrial Internet of Things, Wearables and Consumer IoT, as well as (new) IoT's use in Vertical Markets.
Container technology is shaping the future of DevOps and it’s also changing the way organizations think about application development. With the rise of mobile applications in the enterprise, businesses are abandoning year-long development cycles and embracing technologies that enable rapid development and continuous deployment of apps. In his session at DevOps Summit, Kurt Collins, Developer Evangelist at, examined how Docker has evolved into a highly effective tool for application delivery by allowing increasingly popular Mobile Backend-as-a-Service (mBaaS) platforms to quickly crea...
The Internet of Things (IoT) is growing rapidly by extending current technologies, products and networks. By 2020, Cisco estimates there will be 50 billion connected devices. Gartner has forecast revenues of over $300 billion, just to IoT suppliers. Now is the time to figure out how you’ll make money – not just create innovative products. With hundreds of new products and companies jumping into the IoT fray every month, there’s no shortage of innovation. Despite this, McKinsey/VisionMobile data shows "less than 10 percent of IoT developers are making enough to support a reasonably sized team....
The cloud. Like a comic book superhero, there seems to be no problem it can’t fix or cost it can’t slash. Yet making the transition is not always easy and production environments are still largely on premise. Taking some practical and sensible steps to reduce risk can also help provide a basis for a successful cloud transition. A plethora of surveys from the likes of IDG and Gartner show that more than 70 percent of enterprises have deployed at least one or more cloud application or workload. Yet a closer inspection at the data reveals less than half of these cloud projects involve production...
As organizations realize the scope of the Internet of Things, gaining key insights from Big Data, through the use of advanced analytics, becomes crucial. However, IoT also creates the need for petabyte scale storage of data from millions of devices. A new type of Storage is required which seamlessly integrates robust data analytics with massive scale. These storage systems will act as “smart systems” provide in-place analytics that speed discovery and enable businesses to quickly derive meaningful and actionable insights. In his session at @ThingsExpo, Paul Turner, Chief Marketing Officer at...
Internet of @ThingsExpo, taking place June 7-9, 2016 at Javits Center, New York City and Nov 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA, is co-located with the 18th International @CloudExpo and will feature technical sessions from a rock star conference faculty and the leading industry players in the world and ThingsExpo New York Call for Papers is now open.
We all know that data growth is exploding and storage budgets are shrinking. Instead of showing you charts on about how much data there is, in his General Session at 17th Cloud Expo, Scott Cleland, Senior Director of Product Marketing at HGST, showed how to capture all of your data in one place. After you have your data under control, you can then analyze it in one place, saving time and resources.
With major technology companies and startups seriously embracing IoT strategies, now is the perfect time to attend @ThingsExpo 2016 in New York and Silicon Valley. Learn what is going on, contribute to the discussions, and ensure that your enterprise is as "IoT-Ready" as it can be! Internet of @ThingsExpo, taking place Nov 3-5, 2015, at the Santa Clara Convention Center in Santa Clara, CA, is co-located with 17th Cloud Expo and will feature technical sessions from a rock star conference faculty and the leading industry players in the world. The Internet of Things (IoT) is the most profound cha...
We are rapidly moving to a brave new world of interconnected smart homes, cars, offices and factories known as the Internet of Things (IoT). Sensors and monitoring devices will touch every part of our lives. Let's take a closer look at the Internet of Things. The Internet of Things is a worldwide network of objects and devices connected to the Internet. They are electronics, sensors, software and more. These objects connect to the Internet and can be controlled remotely via apps and programs. Because they can be accessed via the Internet, these devices create a tremendous opportunity to inte...
Growth hacking is common for startups to make unheard-of progress in building their business. Career Hacks can help Geek Girls and those who support them (yes, that's you too, Dad!) to excel in this typically male-dominated world. Get ready to learn the facts: Is there a bias against women in the tech / developer communities? Why are women 50% of the workforce, but hold only 24% of the STEM or IT positions? Some beginnings of what to do about it! In her Day 2 Keynote at 17th Cloud Expo, Sandy Carter, IBM General Manager Cloud Ecosystem and Developers, and a Social Business Evangelist, wil...
SYS-CON Events announced today that Kintone has been named "Bronze Sponsor" of SYS-CON's 18th International Cloud Expo®, which will take place on June 7-9, 2016, at the Javits Center in New York City, NY. kintone promotes cloud-based workgroup productivity, transparency and profitability with a seamless collaboration space, build your own business application (BYOA) platform, and workflow automation system.
Cloud computing delivers on-demand resources that provide businesses with flexibility and cost-savings. The challenge in moving workloads to the cloud has been the cost and complexity of ensuring the initial and ongoing security and regulatory (PCI, HIPAA, FFIEC) compliance across private and public clouds. Manual security compliance is slow, prone to human error, and represents over 50% of the cost of managing cloud applications. Determining how to automate cloud security compliance is critical to maintaining positive ROI. Raxak Protect is an automated security compliance SaaS platform and ma...