Posts Categorized: Technical Blog

Linux Patching and Oracle: Detect RPM conflicts before they happen

While Oracle does supply a list of RPMs that must be installed on a Linux system, that information does not help you in determining which Oracle files are dependent on the RPMs in question. If the list of RPMs to be updated is small, it may even be that that few, if any of the Oracle files on a server may be affected. Here’s how that can be determined.

I Have Never Seen Such an Impressive Line-up for the AUSOUG Conference

If you haven’t considered attending the AUSOUG conference in Perth yet, you definitely should! Out of 50 sessions I counted 21 to be presented by Oracle ACEs and Oracle ACE Directors; 8 by Oracle employees and at least 2 by Oracle Certified Masters! Briefly looking though the conference program I would like to suggest that you consider sessions from the following speakers.

SQL server : Convert BBcode to HTML

A simple example of BBCode would be to make some text bold , this can be simply written like that [b]Bold Text[/b] or italic [i]italic text[/i]. In HTML , this can be done by font tags (deprecated in newer HTML versions) or CSS text properties. I tell you what! I’m writing this blog and I’m even using some BBCode tags to format text.

Secrets of Oracle’s Automatic Degree of Parallelism

Automatic degree of parallelism, or Auto DOP, is a new feature in 11gR2 that promises to help manage systems where large subset of the workload runs with parallel processing. In this post I’ll introduce the feature and give very useful tips I got from Oracle’s Real World Performance expert Greg Rahn on how to use it. So this is worth reading even if you are familiar with the feature.

The Empty Error Log

The MySQL errorlog is an important point of reference when administering a MySQL Server. We can grasp much about the state of our MySQL instance by the informational and error messages written out to it by our MySQL daemon. I was asked to investigate some replication outage alerts a colleague had received overnight. One of the primary directions I took was the error log file. This is where I would expect find any evidence of replication being stopped or crashes etc. When I ran the command to tail the log I was shocked to see the log was totally empty.

My Failure, Success and Great Experience at Oracle OpenWorld 2011

A bit more than a week passed since most of us who been part of the OpenWorld are back from San Francisco. It is about time to start sharing stories on how it went for each of us. I must admit that it happened to be a very stressful OpenWorld for me personally. I am recovering from it slowly. On the positive side I met so many great people, discovered how supportive people are and how great is to be a part of the Pythian Team! Let’s talk about how my 2 presentations went at Oracle OpenWorld 2011.

New replication features in MySQL 5.6

This post was thought of as an attempt to make some performance test with new multi-threaded replication in 5.6, at least that was my initial intention. Based on Luis Soarez – Replication Team Leader in Oracle – post. I wanted to play with new set of variables and features in order to understand how new multi-threaded replication works and make some performance tests.

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