Tag: Oracle

DBD::Oracle v1.45_00 on Its Way to CPAN

A new trial version of DBD::Oracle has been churned out. This release is mostly about Martin J. Evans going all ninjawesome on minor bug fixes as well as paving the way for an upcoming refactoring/speed boost of ora_verbose. As usual, the new version will be soaked for at least 2 weeks before it will turn into its fit-for-general-consumption v1.46 incarnation. Testers, please give this baby a whirl. The full changelog follows for the curious-minded.

Read More >

War Story: Applying Bundle Patch 1 to EM 12 Cloud Control

We have a few clients already using Enterprise Manager 12c Cloud Control. The interface and navigation have improved a lot from the 11g version in my opinion. However, as with any new release of anything, quite a few bugs still need to be fixed. After working with Oracle on some of these bugs last week, we were asked to apply the Bundle Patch 1 (BP1) to one of our clients’ installation. The first thing that I noticed when I started looking for information about BP1 was the amount of warnings from different people I found in MOS and around the internet.

Read More >

Presentations for Ottawa Oracle User Group

The Ottawa Oracle User Group (OOUG) was kind enough to invite me to give presentations for a whole morning. The group was ultra engaged and asked a lot of good questions, so my usual 50-minute Big Data presentation ended up taking 100 minutes, and the rest of the content had to be squeezed a bit. I hope everyone had a good time!

Read More >

Locks, Latches, Mutexes, and CPU Usage

So how is the actual “waiting on lock” implemented? How does session B, waiting for a transaction to commit started by session A, knows that the resource is free for use? To find out how it is implemented, I have traced Oracle foreground processes. I tried this on Oracle RDBMS 11.2.0.3 running on Linux. This is a excerpt of system calls being executed during a session waiting for a lock…

Read More >

Introducing a LinkedIn Group for SLOB Users

This is just a very short blog entry to inform folks that there is an open discussion group over at LinkedIn for SLOB topics of interest.

Read More >

The Exadata Installed Base, Quantified

Update 13-June-2012: It has come to my attention that the numbers from the original source may have been incorrect or improperly released. To avoid confusion and potentially misleading information, the original content of this blog post has been removed.

Read More >

Should your ADR be on Shared Storage?

I was on an Exadata environment with four RAC instances when a fellow DBA created an incident package. It was no big deal, except that part of the adrci packaging procedure was to take a backup of the controlfile and include it in the incident package. Though the package was created successfully, the controlfile never made it.

Read More >

My First Experience Running SLOB – ORION vs SLOB – 2:0

This posts finalizes a few weeks of work on comparing SLOB and ORION IO testing tools.

Read More >

My First Experience Running SLOB – Final Results – ORION vs SLOB

In this blog post, I will share the physical IO testing results I got by running SLOB and ORION on the same system and on the same disks. I will use those results as a reference in a few blog posts to come. As of now, I would like to make few points based in the results here.

Read More >

NoCOUG Contest Take #1: The Es-cu-el Spell

As heralded by Iggy Fernandez and Gwen Shapira, NoCOUG has launched its Third International SQL vs. NoSQL Challenge. Pythian is sponsoring the challenge, so I decided not to take part in the contest. However, I’m still having a crack at the problem just for fun. Here is my first take on it.

Read More >
Page 33 of 141« First Page...10...3132333435...40...Last Page »