|By Srinivasan Sundara Rajan||
|June 2, 2013 10:45 AM EDT||
Traditional RDBMS & New Data Processing
Over the past two decades relational databases have been most successful in serving large-scale OLTP and OLAP applications across enterprises. However, in the past couple of years with the advent of Big Data processing, especially processing unstructured data coupled with the need for processing massive quantities of data, the industry started to look into non RDBMS solutions. This has lead into the popularity of NoSQL databases as well as massively parallel processing frameworks.
However the traditional RDBMS has been quick to react and added several Big Data features as part of their offering such that the enterprises with the heavy investment of traditional RDBMS can have best of both worlds by properly leveraging these new features.
The following sections provide idea about big data features in the popular DB2 Databases, a similar analysis will be performed against Oracle also in a later article. Please refer to my earlier article on Five Big Data Features in SQL Server.
1. DB2 Text Search
DB2 Text Search provides extensive capabilities for searching data in text columns stored in a DB2 table. The search system provides fast query response times and a consolidated, ranked result set that enables you to quickly and easily locate the information that you need. By incorporating the functions of DB2 Text Search in your SQL and XQuery statements, you can create powerful and versatile text-retrieval programs.
DB2 Text Search works by collecting data from diverse sources and indexing it for subsequent fast retrieval. DB2 Text Search uses linguistic analysis to improve search results and supports the following document formats:
- Unstructured plain text.
- Structured text such as that in HTML or XML documents
- Proprietary document formats such as PDF or Microsoft Office document formats.
We can perform various kinds of searches like,
- Basic Search : Using Boolean Operators and Modifiers
- Fuzzy Search : Using words with similar spelling to search term
- Proximity Search : A proximity search retrieves documents that contain search words which are located within a specified distance from each other.
- SCORE Search : We use the SCORE function to find out the extent to which a document matches a search document.
DB2® Text Search provides dictionary packs to support the linguistic processing of documents and queries. In addition, n-gram segmentation is supported for languages such as Chinese, Japanese, and Korean. As an alternative to dictionary-based word segmentation, the search engine provides an option to select n-gram segmentation for languages such as Chinese, Japanese, and Korean. It is evident from the use cases and patterns on Big Data without such features on natural language processing much of the insights like sentiment analysis cannot be fruitful.
2. Partitioned Databases
MPP (Massively Parallel Processing) frame works like Hadoop are found to be well suited for processing large quantities of data due to their Shared Nothing Architecture and the ability to process data in parallel. DB2 on Unix/Windows is the pioneer in implementing such a concept using the partitioned database option.
A partitioned database environment is a database installation that supports the distribution of data across database partitions. Because data is distributed across database partitions, you can use the power of multiple processors on multiple physical machines to satisfy requests for information. Data retrieval and update requests are decomposed automatically into sub-requests, and executed in parallel among the applicable database partitions. The fact that databases are split across database partitions is transparent to users issuing SQL statements. Interpartition parallelism refers to the ability to break up a query into multiple parts across multiple partitions of a partitioned database, on one machine or multiple machines. The query is run in parallel. Some DB2 utilities also perform this type of parallelism.
In support of Unstructured Big Data processing, DB2 Text Search explained earlier is integrated with the partitioned database environment. DB2® Text Search supports full-text search in a partitioned database environment. Text search indexes are distributed in a pattern that matches the base tables on which they are created. For each database partition, a text index partition, also called a collection, is created. This pattern facilitates text search maintenance by allowing text search index updates with parallel execution on all index partitions.
3. Pure XML
The pureXML® feature allows you to store well-formed XML documents in database table columns that have the XML data type. By storing XML data in XML columns, the data is kept in its native hierarchical form, rather than stored as text or mapped to a different data model.
There is no architectural limit on the size of an XML value in a database. An index over XML data can be used to improve the efficiency of queries on XML documents that are stored in an XML column. In contrast to traditional relational indexes, where index keys are composed of one or more table columns you specify, an index over XML data uses a particular XML pattern expression to index paths and values in XML documents stored within a single column. The data type of that column must be XML.
In partitioned database environments, tables containing XML columns can be stored in multi-partition databases. In DB2 latest version, the pureXML feature is supported in partitioned database environments. With both features tightly integrated, pureXML customers can distribute XML data across multiple database partitions and parallelize XML queries for better performance, while partitioned database environments customers can deploy pureXML for new business applications.
The above combination of processing large XML documents in a parallel environment make a best case for DB2 used for big data processing.
4. DB2 Federation
One of the important needs of big data processing is the need to connect to multiple disparate data sources and bring the best out of them. Enterprises no longer can afford to have a single common data store for all their data processing needs.
In DB2 a federated system is a type of distributed database management system that you can use to access data sources across your enterprise. As documented in the IBM Documentation site, DB2 federation support almost all kinds of structured and unstructured data sources. In particular there is support for flat files, Microsoft Excel and VSAM files.
One interesting component of DB2 federation is, the support for connecting to Netezza DB. Netezza is the high performance data warehouse appliance . IBM® Netezza® Analytics is an embedded, purpose-built, advanced analytics platform .
5. Pure Scale
While the Shared Nothing Architecture has been a standard for many massively parallel processing environments, there are successful architectures using Shared Disk model too. The major examples being the IBM's Mainframe Parallel SYSPLEX and Oracle Real Application Clusters.
With the DB2 pureScale Feature, scaling your database solution is simple. Multiple database servers, known as members, process incoming database requests; these members operate in a clustered system and share data. You can transparently add more members to scale out to meet even the most demanding business needs. There are no application changes to make, data to redistribute, or performance tuning to do. The IBM® DB2® pureScale® Feature, much like a multi-partition database environment, provides a scalable and highly available database solution. However, the instance type and data layout of a DB2 pureScale environment and a multi-partition database environment are different.
A DB2 pureScale environment is ideal for short transactions where there is little need to parallelize each query. Queries are automatically routed to different members, based on member workload. While this is not a ideal work load in a Big Data processing scenario , but Big Data Environments do invest on options like Hbase, Cassandra to process short transactions.
Traditional high performance RDBMS like DB2 have their strengths. They are very strong in maintaining the data integrity and quality in the form of constraints, foreign keys and other validation mechanisms. They are also strong in transactional integrity by providing superior locking model, automatic dead lock resolution etc.. However initially they are not found to adjust to Big Data processing needs of enterprises.
With the enhancements in the products made by respective vendors, now databases like DB2 have been enhanced with big data processing features and makes them the best candidate for enterprises looking for best of the breed features between traditional RDBMS and Big Data processing systems, and to leverage the best of existing investments.
"We work in the area of Big Data analytics and Big Data analytics is a very crowded space - you have Hadoop, ETL, warehousing, visualization and there's a lot of effort trying to get these tools to talk to each other," explained Mukund Deshpande, head of the Analytics practice at Accelerite, in this SYS-CON.tv interview at 18th Cloud Expo, held June 7-9, 2016, at the Javits Center in New York City, NY.
Jul. 2, 2016 01:30 AM EDT Reads: 797
Cloud Expo, Inc. has announced today that Andi Mann returns to 'DevOps at Cloud Expo 2016' as Conference Chair The @DevOpsSummit at Cloud Expo will take place on November 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. "DevOps is set to be one of the most profound disruptions to hit IT in decades," said Andi Mann. "It is a natural extension of cloud computing, and I have seen both firsthand and in independent research the fantastic results DevOps delivers. So I am excited t...
Jul. 2, 2016 01:00 AM EDT Reads: 672
SaaS companies can greatly expand revenue potential by pushing beyond their own borders. The challenge is how to do this without degrading service quality. In his session at 18th Cloud Expo, Adam Rogers, Managing Director at Anexia, discussed how IaaS providers with a global presence and both virtual and dedicated infrastructure can help companies expand their service footprint with low “go-to-market” costs.
Jul. 2, 2016 12:30 AM EDT Reads: 1,237
Basho Technologies has announced the latest release of Basho Riak TS, version 1.3. Riak TS is an enterprise-grade NoSQL database optimized for Internet of Things (IoT). The open source version enables developers to download the software for free and use it in production as well as make contributions to the code and develop applications around Riak TS. Enhancements to Riak TS make it quick, easy and cost-effective to spin up an instance to test new ideas and build IoT applications. In addition to...
Jul. 1, 2016 08:30 PM EDT Reads: 793
IoT is rapidly changing the way enterprises are using data to improve business decision-making. In order to derive business value, organizations must unlock insights from the data gathered and then act on these. In their session at @ThingsExpo, Eric Hoffman, Vice President at EastBanc Technologies, and Peter Shashkin, Head of Development Department at EastBanc Technologies, discussed how one organization leveraged IoT, cloud technology and data analysis to improve customer experiences and effi...
Jul. 1, 2016 06:30 PM EDT Reads: 771
Internet of @ThingsExpo has announced today that Chris Matthieu has been named tech chair of Internet of @ThingsExpo 2016 Silicon Valley. The 6thInternet of @ThingsExpo will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA.
Jul. 1, 2016 06:00 PM EDT Reads: 542
"Avere Systems is a hybrid cloud solution provider. We have customers that want to use cloud storage and we have customers that want to take advantage of cloud compute," explained Rebecca Thompson, VP of Marketing at Avere Systems, in this SYS-CON.tv interview at 18th Cloud Expo, held June 7-9, 2016, at the Javits Center in New York City, NY.
Jul. 1, 2016 05:45 PM EDT Reads: 739
Presidio Receives @EMCcorp Partner Services Quality Award | @ThingsExpo @Presidio #IoT #DigitalTransformation
Presidio has received the 2015 EMC Partner Services Quality Award from EMC Corporation for achieving outstanding service excellence and customer satisfaction as measured by the EMC Partner Services Quality (PSQ) program. Presidio was also honored as the 2015 EMC Americas Marketing Excellence Partner of the Year and 2015 Mid-Market East Partner of the Year. The EMC PSQ program is a project-specific survey program designed for partners with Service Partner designations to solicit customer feedbac...
Jul. 1, 2016 05:30 PM EDT Reads: 786
The cloud promises new levels of agility and cost-savings for Big Data, data warehousing and analytics. But it’s challenging to understand all the options – from IaaS and PaaS to newer services like HaaS (Hadoop as a Service) and BDaaS (Big Data as a Service). In her session at @BigDataExpo at @ThingsExpo, Hannah Smalltree, a director at Cazena, provided an educational overview of emerging “as-a-service” options for Big Data in the cloud. This is critical background for IT and data profession...
Jul. 1, 2016 05:15 PM EDT Reads: 643
Let’s face it, embracing new storage technologies, capabilities and upgrading to new hardware often adds complexity and increases costs. In his session at 18th Cloud Expo, Seth Oxenhorn, Vice President of Business Development & Alliances at FalconStor, discussed how a truly heterogeneous software-defined storage approach can add value to legacy platforms and heterogeneous environments. The result reduces complexity, significantly lowers cost, and provides IT organizations with improved efficie...
Jul. 1, 2016 05:00 PM EDT Reads: 477
In the world of DevOps there are ‘known good practices’ – aka ‘patterns’ – and ‘known bad practices’ – aka ‘anti-patterns.' Many of these patterns and anti-patterns have been developed from real world experience, especially by the early adopters of DevOps theory; but many are more feasible in theory than in practice, especially for more recent entrants to the DevOps scene. In this power panel at @DevOpsSummit at 18th Cloud Expo, moderated by DevOps Conference Chair Andi Mann, panelists discusse...
Jul. 1, 2016 04:45 PM EDT Reads: 1,092
Predictive analytics tools monitor, report, and troubleshoot in order to make proactive decisions about the health, performance, and utilization of storage. Most enterprises combine cloud and on-premise storage, resulting in blended environments of physical, virtual, cloud, and other platforms, which justifies more sophisticated storage analytics. In his session at 18th Cloud Expo, Peter McCallum, Vice President of Datacenter Solutions at FalconStor, discussed using predictive analytics to mon...
Jul. 1, 2016 04:30 PM EDT Reads: 759
What does it look like when you have access to cloud infrastructure and platform under the same roof? Let’s talk about the different layers of Technology as a Service: who cares, what runs where, and how does it all fit together. In his session at 18th Cloud Expo, Phil Jackson, Lead Technology Evangelist at SoftLayer, an IBM company, spoke about the picture being painted by IBM Cloud and how the tools being crafted can help fill the gaps in your IT infrastructure.
Jul. 1, 2016 04:30 PM EDT Reads: 1,091
Most organizations prioritize data security only after their data has already been compromised. Proactive prevention is important, but how can you accomplish that on a small budget? Learn how the cloud, combined with a defense and in-depth approach, creates efficiencies by transferring and assigning risk. Security requires a multi-defense approach, and an in-house team may only be able to cherry pick from the essential components. In his session at 19th Cloud Expo, Vlad Friedman, CEO/Founder o...
Jul. 1, 2016 04:15 PM EDT Reads: 460
"There's a growing demand from users for things to be faster. When you think about all the transactions or interactions users will have with your product and everything that is between those transactions and interactions - what drives us at Catchpoint Systems is the idea to measure that and to analyze it," explained Leo Vasiliou, Director of Web Performance Engineering at Catchpoint Systems, in this SYS-CON.tv interview at 18th Cloud Expo, held June 7-9, 2016, at the Javits Center in New York Ci...
Jul. 1, 2016 04:15 PM EDT Reads: 249
[session] Extending Intelligence to IoT By @BsquareCorp | @ThingsExpo #IoT #M2M #API #DigitalTransformation
Ask someone to architect an Internet of Things (IoT) solution and you are guaranteed to see a reference to the cloud. This would lead you to believe that IoT requires the cloud to exist. However, there are many IoT use cases where the cloud is not feasible or desirable. In his session at @ThingsExpo, Dave McCarthy, Director of Products at Bsquare Corporation, will discuss the strategies that exist to extend intelligence directly to IoT devices and sensors, freeing them from the constraints of ...
Jul. 1, 2016 03:15 PM EDT Reads: 318
The pace of innovation, vendor lock-in, production sustainability, cost-effectiveness, and managing risk… In his session at 18th Cloud Expo, Dan Choquette, Founder of RackN, discussed how CIOs are challenged finding the balance of finding the right tools, technology and operational model that serves the business the best. He also discussed how clouds, open source software and infrastructure solutions have benefits but also drawbacks and how workload and operational portability between vendors ...
Jul. 1, 2016 03:00 PM EDT Reads: 1,279
The U.S. Army Intelligence and Security Command (INSCOM) has awarded BAE Systems a five-year contract worth as much as $75 million to provide enhanced geospatial intelligence technical and analytical support. The award was issued under the INSCOM Global Intelligence indefinite delivery, indefinite quantity contract.
Jul. 1, 2016 02:15 PM EDT Reads: 696
Connected devices and the industrial internet are growing exponentially every year with Cisco expecting 50 billion devices to be in operation by 2020. In this period of growth, location-based insights are becoming invaluable to many businesses as they adopt new connected technologies. Knowing when and where these devices connect from is critical for a number of scenarios in supply chain management, disaster management, emergency response, M2M, location marketing and more. In his session at @Th...
Jul. 1, 2016 02:00 PM EDT Reads: 1,425
The initial debate is over: Any enterprise with a serious commitment to IT is migrating to the cloud. But things are not so simple. There is a complex mix of on-premises, colocated, and public-cloud deployments. In this power panel at 18th Cloud Expo, moderated by Conference Chair Roger Strukhoff, Randy De Meno, Chief Technologist - Windows Products and Microsoft Partnerships at Commvault; Dave Landa, Chief Operating Officer at kintone; William Morrish, General Manager Product Sales at Interou...
Jul. 1, 2016 02:00 PM EDT Reads: 1,153