Welcome!

Eclipse Authors: Mano Marks, David H Deans, Liz McMillan, JP Morgenthal, Yeshim Deniz

Related Topics: Java IoT, Industrial IoT, Weblogic, Eclipse, Machine Learning , 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).

Conclusion
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
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 Day 2 Keynote at @ThingsExpo, Henrik Kenani Dahlgren, Portfolio Marketing Manager at Ericsson, discussed how to plan to cooperate, partner, and form lasting all-star teams to change the...
SYS-CON Events announced today that delaPlex will exhibit at SYS-CON's @CloudExpo, which will take place on June 6-8, 2017, at the Javits Center in New York City, NY. delaPlex pioneered Software Development as a Service (SDaaS), which provides scalable resources to build, test, and deploy software. It’s a fast and more reliable way to develop a new product or expand your in-house team.
SYS-CON Events announced today that IoT Now has been named “Media Sponsor” of SYS-CON's 20th International Cloud Expo, which will take place on June 6–8, 2017, at the Javits Center in New York City, NY. IoT Now explores the evolving opportunities and challenges facing CSPs, and it passes on some lessons learned from those who have taken the first steps in next-gen IoT services.
SYS-CON Events announced today that WineSOFT will exhibit at SYS-CON's 20th International Cloud Expo®, which will take place on June 6-8, 2017, at the Javits Center in New York City, NY. Based in Seoul and Irvine, WineSOFT is an innovative software house focusing on internet infrastructure solutions. The venture started as a bootstrap start-up in 2010 by focusing on making the internet faster and more powerful. WineSOFT’s knowledge is based on the expertise of TCP/IP, VPN, SSL, peer-to-peer, mob...
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...
The Internet of Things can drive efficiency for airlines and airports. In their session at @ThingsExpo, Shyam Varan Nath, Principal Architect with GE, and Sudip Majumder, senior director of development at Oracle, discussed the technical details of the connected airline baggage and related social media solutions. These IoT applications will enhance travelers' journey experience and drive efficiency for the airlines and the airports.
With billions of sensors deployed worldwide, the amount of machine-generated data will soon exceed what our networks can handle. But consumers and businesses will expect seamless experiences and real-time responsiveness. What does this mean for IoT devices and the infrastructure that supports them? More of the data will need to be handled at - or closer to - the devices themselves.
SYS-CON Events announced today that Dataloop.IO, an innovator in cloud IT-monitoring whose products help organizations save time and money, has been named “Bronze Sponsor” of SYS-CON's 20th International Cloud Expo®, which will take place on June 6-8, 2017, at the Javits Center in New York City, NY. Dataloop.IO is an emerging software company on the cutting edge of major IT-infrastructure trends including cloud computing and microservices. The company, founded in the UK but now based in San Fran...
Big Data, cloud, analytics, contextual information, wearable tech, sensors, mobility, and WebRTC: together, these advances have created a perfect storm of technologies that are disrupting and transforming classic communications models and ecosystems. In his session at @ThingsExpo, Erik Perotti, Senior Manager of New Ventures on Plantronics’ Innovation team, provided an overview of this technological shift, including associated business and consumer communications impacts, and opportunities it m...
In his keynote at @ThingsExpo, Chris Matthieu, Director of IoT Engineering at Citrix and co-founder and CTO of Octoblu, focused on building an IoT platform and company. He provided a behind-the-scenes look at Octoblu’s platform, business, and pivots along the way (including the Citrix acquisition of Octoblu).
"delaPlex is a software development company. We do team-based outsourcing development," explained Mark Rivers, COO and Co-founder of delaPlex Software, in this SYS-CON.tv interview at 18th Cloud Expo, held June 7-9, 2016, at the Javits Center in New York City, NY.
SYS-CON Events announced today that CA Technologies has been named “Platinum Sponsor” of SYS-CON's 20th International Cloud Expo®, which will take place on June 6-8, 2017, at the Javits Center in New York City, NY, and the 21st International Cloud Expo®, which will take place October 31-November 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. CA Technologies helps customers succeed in a future where every business – from apparel to energy – is being rewritten by software. From ...
"I think that everyone recognizes that for IoT to really realize its full potential and value that it is about creating ecosystems and marketplaces and that no single vendor is able to support what is required," explained Esmeralda Swartz, VP, Marketing Enterprise and Cloud at Ericsson, in this SYS-CON.tv interview at @ThingsExpo, held June 7-9, 2016, at the Javits Center in New York City, NY.
The buzz continues for cloud, data analytics and the Internet of Things (IoT) and their collective impact across all industries. But a new conversation is emerging - how do companies use industry disruption and technology enablers to lead in markets undergoing change, uncertainty and ambiguity? Organizations of all sizes need to evolve and transform, often under massive pressure, as industry lines blur and merge and traditional business models are assaulted and turned upside down. In this new da...
SYS-CON Events announced today that Fusion, a leading provider of cloud services, will exhibit at SYS-CON's 20th International Cloud Expo®, which will take place on June 6-8, 2017, at the Javits Center in New York City, NY. Fusion, a leading provider of integrated cloud solutions to small, medium and large businesses, is the industry’s single source for the cloud. Fusion’s advanced, proprietary cloud service platform enables the integration of leading edge solutions in the cloud, including cloud...
SYS-CON Events announced today that Cloud Academy will exhibit at SYS-CON's 20th International Cloud Expo®, which will take place on June 6-8, 2017, at the Javits Center in New York City, NY. Cloud Academy is the industry’s most innovative, vendor-neutral cloud technology training platform. Cloud Academy provides continuous learning solutions for individuals and enterprise teams for Amazon Web Services, Microsoft Azure, Google Cloud Platform, and the most popular cloud computing technologies. Ge...
In his keynote at 18th Cloud Expo, Andrew Keys, Co-Founder of ConsenSys Enterprise, provided an overview of the evolution of the Internet and the Database and the future of their combination – the Blockchain. Andrew Keys is Co-Founder of ConsenSys Enterprise. He comes to ConsenSys Enterprise with capital markets, technology and entrepreneurial experience. Previously, he worked for UBS investment bank in equities analysis. Later, he was responsible for the creation and distribution of life settle...
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.
SYS-CON Events announced today that Outlyer, a monitoring service for DevOps and operations teams, has been named “Bronze Sponsor” of SYS-CON's 20th International Cloud Expo®, which will take place on June 6-8, 2017, at the Javits Center in New York City, NY. Outlyer is a monitoring service for DevOps and Operations teams running Cloud, SaaS, Microservices and IoT deployments. Designed for today's dynamic environments that need beyond cloud-scale monitoring, we make monitoring effortless so you...
A strange thing is happening along the way to the Internet of Things, namely far too many devices to work with and manage. It has become clear that we'll need much higher efficiency user experiences that can allow us to more easily and scalably work with the thousands of devices that will soon be in each of our lives. Enter the conversational interface revolution, combining bots we can literally talk with, gesture to, and even direct with our thoughts, with embedded artificial intelligence, whic...