Based on my experience. Replication Platforms Hope this helps.
What’s the Diff? Creating AWR Difference Reports
If you’re a DBA on Enterprise Edition with the Diagnostics Pack and you don’t use the Automatic Workload Repository (AWR) reports, you are seriously missing out. AWR is the holy grail of snapshot-based metrics at the instance level. There are a ton of resources out there covering AWR, so I
A BLOB Filesystem built with FUSE, node.js, and fuse4js
Here’s one for the “neato” category. This weekend I decided to try making a filesystem with FUSE (Filesystem in Userspace), a package which allows mountable filesystems to be customized and modified with a source other than disk. The data can come from anywhere, and it will take the traditional appearance
Just how big is your data?
A while back (2007 to be exact, an eternity in Internet years), Google released a product called Google 411. You could call either 1-800-GOOG-411 or 1-877-GOOG-411 and search for businesses by city and state, category, or other criteria. It was a direct competitor to the local expensive 411 services, and
%The fabulous YAML
— The Problem: Moving data outside of a database offers multiple options, each with their own pros and cons. The Solutions: XML (Extensible Markup Language): What it is: A markup language designed for full featured data exchange Info:
The best IT career book I’ve ever owned
The book that has changed my perception of business and the IT professional’s role in it is not about Oracle, or Hadoop, or NoSQL, or any development framework. In fact it has absolutely nothing to do with technology and was written only a year after Alan Turing’s famous Turing Machine
Because what is life without humor?
I noticed yesterday that I was still getting hits for my Oracle Ace comics, but since the site for them is long gone viewers were justing getting errors. So I’ve brought them here for your viewing pleasure. Enjoy! And yes, I’m a big xkcd fan. I’m also aware that my
Make your own VM training/lab environment for $900
I’m sure we’ve all dabbled with VMs a time or two (and if you haven’t, you should). However, I had a specific goal of creating a robust purely virtual environment for training, labs, and testing. While a plain old Linux VM loaded over Windows, Linux, or Mac would have been
Strange Behavior with MEMORY_TARGET
I got a help request from a client who was running Oracle 11.1.0.6 64-bit. Their memory_target parameter was set to 5G, with sga_target and all pool parameters set to 0. pga_aggregate_target was explicitly set to 750MB. However, Oracle would not allocate more than 64MB RAM to the Buffer Cache. We
A million kernels, a million I tell you!
This article describes how scientists at Sandia National Laboratories in Livermore were able to run a million linux kernels on a single system as virtual machines. That’s a whole mess of VMs. Given the enormous amount of growth the computing world has gone through in the last few decades, you