Oracle

Pythian Goes to RMOUG Training Days 2010, Denver

I’m so much looking forward to the next conference in my schedule — RMOUG Training Days 2010. It would be only my second time I’m presenting at the RMOUG but it was enough to go there once to understand that it’s one of the top rated Oracle User Group conferences in the world. Some of the great speakers are presenting and registration fees are very low compare to other events of comparable quality. If your conference budget is low this year — that’s the conference you don’t want to miss!

So, You Want to be an Oracle ACE? Oracle OpenWorld 2008 Presentation

In light of the official Oracle acquisition of Sun, I dug out a presentation video I realize I never officially shared with either the MySQL or the Oracle community. It’s the presentation I did at the 2008 Oracle Open World conference called, “So, you want to be an Oracle ACE?” and is a good resource for anyone who wants to contribute to anything — not just Oracle or MySQL, though certainly it’s based on my experiences with contributing to MySQL. Have a look.

Oracle GoldenGate Extract Internals, Part II

Today we continue looking at various aspects of how the Oracle GoldenGate extract process works. One of the follow up questions to part I was about the way the Extract process reads from ASM storage. I’ve provided the answer, however, today we’re going get a detailed look at how the Extract process interacts with an ASM instance and what kind of implications may result. Let’s take a look at what changes in the Extract process loop when it reads from ASM storage:

Oracle GoldenGate Extract Internals, Part I

Since GoldenGate has been declared as a strategic direction for replication technology by Oracle, it sounds like it’s time to get up to speed with various aspects of how this technology works and performs. Let’s see what kind of techniques they were able to utilize in order to achieve their goals. I did a simple replication setup between two different databases with the Extract, DataPump and Replicat processes. I’m planning to take a look at all of these but today is the Extract’s process turn.

Oracle’s January 2010 Critical Patch Update is out

Oracle has just released their January installment of their critical patch update (CPU). Vulnerability CVE-2010-0071 is particularly critical, with a CVSS score of 10, the highest possible. It’s a remotely-exploitable listener vulnerability that’s particularly severe on Windows platforms. Full details are on Oracle’s security site.

GPL/ASL/BSD License Misconceptions and MySQL

Having been a free software user and supporter for many years, I am disheartened by some of the comments made in the MySQL/Oracle debate regarding the GNU Public License (GPL) and other licenses. There is much throwing around of misconceptions and untruths about licenses and their differences. In this blog, I shall take on some of the bigger misconceptions.

Oracle Streams Apply Process changes in 11GR2

It is somewhat timely that we’ve been doing some Oracle Golden Gate testing which in turn made me curious to take a closer look at Oracle Streams in 11GR2 and see where all the performance is coming from. I’ve setup a simple replication for table t1 from schema src to schema dst, changed Apply Server parallelism to 1 and did a simple test with inserting 100 rows while performing a sql trace. Let’s get started.

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