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Test-Driving Reflex

At work, we have a need for a little job daemon that would poll jobs and process them. But there is more than one type of job, so the solution that we need will have to be a little more complex. To get to my goal, I decided that I would have a generic Poller class. For each type of job to monitor and run, I will create a different object with parameters to tell it how often to poll, how to poll, and what to do with the stuff it polls. Sounds good? Perfect, then let’s go.

Testing and Analyzing Performance with Benchmarks

Generic benchmark tools can be very useful for testing performance on your system. These benchmark tools normally have a set of predefined workloads, but often they don’t match your specific workload in useful ways. One of the best ways to reproduce your workload is to have a good sense of the application that uses the…

Upgrade Exadata to 11.2.0.3

I’ve recently done two Exadata upgrades to 11.2.0.3 and want to share the experience. I hope this short note will help someone to make the decision, calculate an estimation, and prepare for maintenance. I am going to talk about upgrade from the version 11.2.0.2 BP10 to 11.2.0.3 BP2.

Oracle Database Appliance as a Consolidation Platform

I had the chance to talk to several Oracle Database Appliance users at the annual Collaborate 2012 conference last month in Las Vegas. A common theme in these discussions, as well as discussions with Pythian clients, is an interest in using the ODA as a large-scale consolidation platform. I found this interesting and decided to dig a little further.

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