Here is a short story about distributed versus monolithic application design… Around 1999 Dan Holle and I started thinking about how to better deploy applications that used distributed computing. To be fair… Dan schooled me on his ideas for a better approach. We started with a thing called XML that had not yet released a…
There is a new way to think about data warehouse architecture. The Gartner Group calls it a logical data warehouse and it uses database federation to dynamically integrate a universe of data warehouses, operational data stores, and data marts into a single, united, structure. This blog has suggested that there is a special case of the…
I composed the video below on a contract for Intel… but they were kind enough to let me tell the story with only a lite promotional touch. I think that you will find the story interesting as it describes 20+ years of systems architecture and suggests where we may well be headed in the next…
Database vendors don’t usually admit to shortcomings… they protest that they have no shortcomings until the market suggests otherwise… then they make some sort of change that signals an admission. This post will explore three of these admissions: Oracle and the shared-nothing architecture, DB2 on the mainframe and the shared-nothing architecture, and Teradata and in-memory…
In the post here I listed the units of parallelism (UoP) applied by various products on a single node. Those findings are summarized in the table below. Product Version/HW Cores per Node UoP per Node Notes Teradata EDW 6700H 16 32 Uses hyper-threads. Greenplum DCA UAP Edition 16 8 Recommends 1 Segment for each 2…
Since my blogs tend to be in response to some stimulus they may not reflect a holistic view on any particular product. The “My 2 Cents” series will try to provide a broader view… To help pay the bills please consider this as you read on… Summary OK, I hate Oracle marketing (see here and here).…
Teradata is circulating a document to customers that claims that the numbers SAP has published in its 100TB PoC white paper (here) demonstrates that HANA suffers from scaling issues associated with the NUMA-effect. The document is so annoyingly inaccurate that I have to respond. NUMA stands for non-uniform-memory-access. This describes an architecture whereby each core…
The SAP Business guy at Virtustream including EMC Federation
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