Hotsos Symposium Speaker – Stephan Haisley

Stephan Haisley is a returning Hotsos Symposium presenter.


Stephan HaisleyStephan Haisley originally joined the UK Oracle Worldwide Support group in 1996 and has since worked in various technical support groups within Oracle. Currently he is a member of the Center Of Expertise, which is a small group within Oracle's Support Services that specializes in complex problem resolution and internals of the database kernel. When not teaching database internals classes or fixing customer issues, Stephan spends much of his time trying to figure out why Oracle works the way it does and then documenting it in a more readable manner.

Stephan has spoken at many Oracle conferences including RMOUG, UKOUG, IOUG-A, UTOUG, and previous Hotsos Symposia.

Presentation Title

Minimizing Downtime of Planned Outages with Oracle Goldengate


System outages cause the worst type of performance. That is, it offers no performance. Planned downtime can be just as disruptive to operations as unplanned downtime. This is especially true for the increasing number environments expecting availability 24 hours a day, 7 days a week.

Traditionally planned downtime was required for the following activities:

  • Period Maintenance — such as patching or upgrades to the database, operating system, hardware or application
  • New deployments — major upgrades or new rollout of hardware, database, operating system or application

In this session, Stephan will present two examples of using Oracle GoldenGate to achieve minimal service interruption when;

  1. Upgrading/Migrating the database
  2. Applying a major application upgrade

By following the approaches outlined in this presentation and using the configuration best practices, it should be possible to reduce the downtime requirement of upgrades and migrations to near zero.

Presentation Materials

Presentation materials are available online to attendees only.


The speaker schedule is as follows: