Posts Categorized: Technical Blog

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 11.1.0.7 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 Panoptic.com and Matt Yonkovic of Percona, we knew the technical content was going to be great.

Shuck & Awe #7: Hunting for Perl

No one is safe from the TPF Inquisition. Alberto Simões cornered Michael Schwern at YAPC and exacted a confession about the state of Test::Builder 2. No doubt threatened by the horrid torments that only torture by the comfy chair can provide, the Schwern spilled the beans.

ODTUG Kaleidoscope 2010: Best Practices

For me, ODTUG Kaleidoscope 2010 started on Friday with the ACE Directors briefing. Best practices topic was touched there slightly and I twitted about it. I decided that the feedback deserves a blog post so I’m simply quoting the conversation here. If you have anything to add, you know where to find the comment box.

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