Posts Categorized: Technical Blog

Partial to a picture of your posse in your POD?

If you are, you might like the little greasemonkey script (available on and github) that I churned. The script finds the AUTHORS/CONTRIBUTORS section of POD pages on and add Gravatar pictures where it finds author email addresses. The picture on the right is an example of what it does to the main Catalyst CONTRIBUTORS section.

XPathScript Reborn

A little hacking happened to decouple the core engine from its Apache roots, and XML::XPathScript was born. That module served me quite well throughout the years, but for some time now I’ve had this plan of doing a clean rewrite patiently sitting on my back-burner. This week I had a smashing staycation, and thanks to a very understanding wife, I was able to indulge in the necessary hacking sessions to get the ground work done. The result is not on CPAN yet, but can be perused on GitHub. As an example is worth a thousand pages of documentation, let’s say that you want to turn the piece of docbook-ish xml

It’s the End of the World As We Know It (NoSQL Edition)

I think Michael Stonebraker overshot the target In a 2007 paper titled, “The End of an Architectural Era”. Why is this The End? According to Michael Stonebraker “current RDBMS code lines, while attempting to be ‘one size fits all’ solution, in face, excel at nothing. Hence, they are 25 years old legacy code lines that should be retired in favor of a collection of ‘from scratch’ specialized engined”.

Beware the /var/tmp/.oracle Hidden Directory!

A few months ago, we had a test instance complaining that it couldn’t write to ASM. This was an single (non-RAC) instance on Oracle Enterprise Linux 5, using ASM for the storage.We ended up booting the server altogether, after which everything came up nicely. We filed an SR with Oracle Support, who directed us to Note 391790.1 (Unable To Connect To Cluster Manager Ora-29701). This note lists the cause, quite simply, as…

ODTUG Kscope Wrap-up and Slides

Ronald Bradford and I produced a successful MySQL track at Kaleidoscope (hereinafter referred to as Kscope). With a speaker list of Philip Antoniades, Josh Sled and Craig Sylvester of Oracle, Laine Campbell of PalominoDB, Patrick Galbraith of Northscale, Sarah Novotny of Blue Gecko, Padrig O’Sullivan of Akiba, Dossy Shiobara of and Matt Yonkovic of Percona, we knew the technical content was going to be great.

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