DBA Lounge

Shuck & Awe #3: Hunting for Perl

Want to help Perl 6, and collect some booty in the process? Moritz Lenz has issued the first of a series of Perl 6 challenges. Fulfill the challenge, and get a chance to win mind-bogglingly fabulous prizes (well, okay, t-shirts for now). This week’s challenge doesn’t even require Perl 6 knowledge — it’s all about creating a website for proto.

“Oracle RMAN 11g Backup and Recovery” book

One of the most critical skills of any Oracle DBA is the ability to prevent a system crash and to restore and recover the system in case of a disaster. The “Oracle RMAN 11g Backup and Recovery” book by Robert G. Freeman and Matthew Hart is a resource that can definitely help to acquire the skill. I recently received my early copy of it, and am honored to have contributed to Chapter 5 “Oracle Secure Backup” for it.

Shuck & Awe #2: Hunting for Perl

Huzzah! It’s official, Perl 5.12 is out! If you haven’t already, check out the changelog! As one might expect, this little piece of news made its way on several blogs, both internal and external to the Perl community.

Stats Overflow

Recently I’ve been puzzled with the performance difference observed between 11GR1 and 11GR2. As part of the investigation I’ve decided to compare session stats from both 11GR1 and 11GR2 and found that there is a big difference for session cursor cache hits. But the number of session cursor cache hits I’ve been observing in 11GR2 just didn’t made any sense while being absolutely fine in 11GR1. An overflow was certainly a possibility, though in 2010, it’s not like someone should be counting every bit especially if they didn’t in 11GR1! Anyway it was worth a shot so I’ve decided to check it out…

Installing TOra with Oracle Support on Ubuntu 10.04 (Lucid Lynx)

Once again into the breach. The release of Ubuntu 10.04 is at hand. I’ve been playing with “Lucid” for a couple of months now but since we’re in beta2 with the release candidate soon to follow, I thought I would really sit down and get my normal app stack working including TOra. All in all the instructions are mostly the same as last time around, with a couple of new improvements, caveats and quid pro quo.

Shuck & Awe #1: Hunting for Perl

Welcome to the first issue of Shuck & Awe: Hunting for Perl. Inspired by Blogrotate and Log Buffer, I’ve decided to try jump-starting a bi-weekly review of everything and anything that caught our attention in the Perl world. Okay, that’s enough introduction. Let’s cut down to the meat already, and see what I’ve collected for the last two weeks.

When Was Your Last Disaster Recovery Test?

A regular DR procedure validation is designed to minimize the risk of a broken process to go unnoticed. If the failure is detected during a regular switchover process, you are prepared to handle it way better (or potentially just leave services on the currently primary site) than during emergency failover when you get to the “Oh shit!” moment under the tremendous pressure to get services back.

Achievements of Women in Technology

Today is Ada Lovelace day, a day to “draw attention to achievements of women in technology.” So here I am, drawing some attention :) All the names contain links to learn more (mostly Wikipedia links), so if you are so inclined to do so, you can learn more (you could start at Wikipedia’s article on women in computing). Perhaps you will realize that there are lots of women in technology already, more than you first thought. That being said, this is by no means a comprehensive list.

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