Hotsos Symposium Speaker – Alex Gorbachev

Mr. Gorbachev is a returning Hotsos Symposium presenter.


Alex GorbachevFew DBAs are as well equipped as Alex to handle any kind of database scenario. Alex has architected and designed numerous successful database solutions addressing challenging business requirements. Alex is a respected figure in the Oracle world and a sought-after leader and speaker at Oracle conferences around the globe. He regularly publishes articles on the Pythian blog and runs online webinars. Alex is a member of OakTable Network and an Oracle ACE Director.

Today, Alex is working at The Pythian Group. He started at Pythian in Ottawa, leading a team of database experts before moving to Australia to embrace the challenges of setting up company business in the East Asia Pacific region. Now he's back in Ottawa as Pythian's Chief Technology Officer, continuing to bridge the gap between business and technology. The search for the perfect fit between technology, engineering talents and business processes is what keeps him up at night.

Before joining Pythian, Alex developed and administered Oracle databases and applications for Lukoil, the Russian petrochemicals giant. Later, he led design and implementation of high-availability mission-critical databases for Amadeus in Germany, the leading Global Distribution System and biggest processor of travel bookings in the world.

Alex is an Oracle Ace Director.

Presentation Title

Session #1: Battle Against Any Guess

Session #2: Run-Time Load Balancing in Oracle RAC


Alex Gorbachev at Sym 2008 - Photo by Wolfgang BreitlingSession #1, Battle Against Any Guess: Guesswork is the enemy number one of any performance analyst! This presentation will show whether such strong statement does hold true.

Can we afford guesswork during performance problem diagnosis? What do we do when it seems like there is no path forward and no reasonable way to collect missing diagnostic information? In a crisis situation, how do you handle pressure of getting "something" done? Is it safe to take a shortcut relying on experience rather than on a scientific method? Can experience play nasty jokes on you? These are the sort of questions to be answered during this presentation.

Session #2, Run-Time Load Balancing in Oracle RAC: Covering Oracle Database 10g and 11g features, we will do a deep dive into the internals of the Oracle Run-Time Load Balancing Advisory (LBA). We will learn how it's designed and go deeper into the details of the implementation. We will see what are the prerequisites to use LBA and what should be taken in account by application developers. Attendees of the session will have clear idea of ways to troubleshoot LBA and how to monitor its functionality. The grand finale is to demonstrate how one can create their own LBA functionality and override load-balancing algorithms implemented by Oracle.

Presentation Materials

Presentation materials are available online to attendees only. Alex's presentation slides and white paper will be available upon receipt.


The speaker schedule is as follows: