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Capping IT Off
Author Archives: Manuel Sevilla
Why SAP HANA is a breakthrough technology
I have been working on SAP HANA for long time. First call with SAP’s R&D was in 2010, when HANA was yet to be named and they were still calling it Hasso DB (for Hasso Plattner, co-founder of SAP). Now I come to think of it, even if HANA officially means High performance ANalytical Application, it is said that the real meaning is HAsso New Architecture, who knows… My first official SAP meeting on …
MegaUpload, an Information Management cloud
This post has not been written to discuss the legal aspects of the recent MegaUpload events. This post’s goal is presenting a high level and technical point of view of how MegaUpload was designed. As you know, MegaUpload was a collection of websites allowing users to upload and download any file. MegaUpload information system is a pure cloud based solution. To propose services, to store petabytes of data or to bill – all have been …
What is Hadoop?
(or Hadoop for dummy architects like me) I’m sure you’ve heard about Big Data. If not, I recommend you my blog post “What is Big Data ?” The most well known technology used for Big Data is Hadoop. Hadoop is used by Yahoo, eBay, LinkedIn and Facebook. It has been inspired from Google publications on MapReduce, GoogleFS and BigTable. As Hadoop can be hosted on commodity hardware (usually Intel PC on Linux with one or 2 …
What is Big Data?
2011 has been a year rich with new trends in the Business Intelligence (BI) space some of which have rocketed this year (#1): Mobile BI: Adapting analytic tools to mobile characteristics (always worn, rarely off, sometimes geographically localized, small screen, multiple versions, private usage …) In-memory analytics: Having all data in memory to improve dramatically the response time of the analytic tools, and allowing new kinds of usage Big Data: Which is…? Of course, I will …
My Point of View on Oracle Exalytics
Oracle has launched Exalytics during the Oracle Open World 2011. I was not there, but I had calls, mails and slides explaining to me what it was. To be honest with you, I first thought it was an in-memory database. So, to simplify, I thought it was a HANA competitor. I’ve heard about Times Ten inside, an in memory database acquired by Oracle in 2005 ago but never pushed commercially, at least on the …
OLAP databases are being killed by In-Memory solutions
In early 90s, to provide acceptable performance results during reporting and drilling, many vendors have designed OLAP (On-Line Analytical Process) solutions. When standard relational databases store detailed data in classic row-column storage, OLAP tools allow to store pre-aggregate results and thanks to a hash-function provide a direct access to many results. Tools like Cognos Powerplay, Hyperion ESSbase, and Microsoft SQL Server OLAP have created a new growing market. To model a cube, it is mandatory …
Does Real Time BI exist?
One of my architects asked me to validate a roadmap to go from usual batch Business Intelligence (BI) architecture to a real-time BI architecture. He has designed a high level architecture with an enterprise service bus (ESB), an extract-transform-loading (ETL) tool and so on. This roadmap was very complete, correct in terms of architecture, but to be honest, it was much more an excellent theoretical architecture than a pragmatic architecture. Especially with that kind of …
Winner IT industry blogger of the Year
