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Lucky to find it…
Earlier this month I was able to bought the book “Sun Performance and Tuning: Java and the Internet (2nd Edition)” for only 190pesos at some bookstore Amazon sells it for 2400pesos.. It’s a pretty old...
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Knowing the trend of Deadlock occurrences from the Alert Log
Recently, my client deployed a new application and had this intermittent “Deadlock Storm” … A trace file was sent and I was able to pinpoint the cause of the deadlock and the session that caused it....
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RHEV (Red Hat Enterprise Virtualization) is out!!! :)
The company I work for, SQL*Wizard, is a RedHat Advanced Business Partner so I was lucky to get my hands dirty on the BETA release of RHEV, also a pleasure to work with Siva Shunmugam (Sr. Solutions...
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RAC system load testing and test plan
Yesterday I was browsing through some docs in Metalink regarding RAC on Windows… then again came across the “RAC Starter Kit and Best Practices” notes… RAC Assurance Support Team: RAC Starter Kit and...
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50+ SQL Performance Optimization scenarios
Before the year ends I’d like to share some good stuff… I have never seen a huge compilation of SQL tuning tips or rewrite scenarios (with test cases) and got them only on OracleFans forum… ooops… so...
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Workload characterization using DBA_HIST tables and kSar
Been busy these past few days.. Well, this post is about taking advantage of the built in data store that started in 10gR1.. yeah it’s AWR, and it’s very much like a “Statspack on steroids” (got that...
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Craig Shallahamer is now blogging!
Craig Shallahamer is now blogging… check out his initial post here! Earlier I had a few mail exchanges with him and got to check his new work.. called the Stress Identifier. Hmm.. so how it will be...
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DEVCON Luzon 2010
I just recently I became a member of the PSIA Tech Council… The company I’m working for is a member of PSIA which makes up 90% of the country’s software sector promoting the growth and global...
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“Ideas build off ideas”… making use of Social Networking sites
In this post (which has been looong overdue :p ) I’ll show you how you could make use of Social Networking Sites to make knowledge sharing and meeting people more fun. As you can see from the...
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My Personal Wiki – karlarao.tiddlyspot.com
Our brain does not work in a linear or list-like manner (yeah.. not like the guy on the right). From the textbooks and blogs that we read everyday we are all aware that print is laid out in a series...
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Seeing Exadata in action
Last week I was able to attend a 3 day exadata workshop conducted by performance engineers from Singapore. It was supposed to be a 5 day workshop with hands on labs but everything was squeezed...
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Oracle Mix – OOW 2010 Suggest-A-Session
I hope it’s not too late. I just finished my Suggest-A-Session on Oracle Mix titled “Mining the Oracle Database AWR repository for Capacity Planning“, this might be of interest to you… below is the...
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The “Not a Problem” Problem and other related stuff
It’s been a while since I visited the Sun Video RSS feed and I found some interesting videos related to performance that are worth sharing and something you could watch over a big cup of coffee.. First...
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Oracle datafile IO latency – Part 1
On my post about observing the Exadata V1 I had an interesting comment posted by Mark Seger (author of collectl and collectl utilities) about the correlation of activities across a system, the sample...
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Graphing the AAS with Perfsheet a la Enterprise Manager
On this previous blog post I was able to take advantage of the AWR repository particularly the DBA_HIST tables to have a far better workload information and nice correlation of the Database Server’s...
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Guesstimations
We do Guesstimations (calculated or not) once in a while… and this is an interesting read about it… http://3quarksdaily.blogs.com/3quarksdaily/2008/09/useless-calcula.html In the Oracle side… we also...
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Statistically summarize Oracle Performance data
Here’s the draft of this post http://karlarao.tiddlyspot.com/#dbms_stat_funcs , expounded version coming up!
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OOW 2010 – my schedule
I was able to finalize my schedule a week before the OOW 2010 and most of the sessions that I’ll be attending are related to Performance & Exadata. So that would be: 13 conference sessions, 6...
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OOW 2010 – the highlights
I started my week with a blast by sky diving at Parachute Center – Sacramento, it was an awesome experience! Then we went to Redwood Shores to check out the Oracle office Then headed back to the...
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Oracle Closed World and Unconference Presentations
There are so many things to blog about these past few days. That is mainly about the cool stuffs around OCW and OOW, sessions that I have attended (OCW, unconference, OOW), plus the interesting people...
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After OOW, my laptop broke down – data rescue scenario
I just got back in the office from a 2 week conference + vacation (SFO,WAS,NY). Then I was finally back in shape to work and do the usual geek stuff again but suddenly my Neo laptop suddenly stopped...
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I’ll be speaking at HOTSOS 2011!
Hotsos is an annual conference that is devoted on Oracle system performance and the people presenting there are really passionate about their research and highly specialized about their subject area....
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Wheeew, I am now a RedHat Certified Engineer!
A couple of weeks ago, RedHat announced the general availability of RHEL6… also effective on this release is the change on their certification offering. RHCT will now be replaced by RHCSA (Red Hat...
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Migrating your VMs from VMware to VirtualBox (on a Netbook)
I recently bought a Toshiba nb305-n600 10.1″ netbook with Windows 7 Starter (32bit) on Atom n550, 250GB 5400 rpm disk, & 2GB of physical memory. Well this netbook has thrice the battery life (or...
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Hotsos 2011 – Mining the AWR Repository for Capacity Planning, Visualization,...
For all that loves Oracle performance.. Hotsos is truly the best conference, all the speakers are performance geeks, all the attendees talks about performance. Everything is about performance! There...
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Oracle by Example portal now shows 12g
A quick post… which is a bit interesting… As I was searching for Exadata viewlets in Oracle By Example portal (http://goo.gl/HjshR) I clicked on the “Advanced Search” and then filtered by Product...
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NoCOUG Journal – Ask the Oracle ACEs – Why is my database slow?
Dave Abercrombie mailed me earlier that the May 2011 NoCOUG Journal is already out and can be viewed online at http://www.nocoug.org/Journal/NoCOUG_Journal_201105.pdf. I met Dave at Hotsos 2011 when he...
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Enkitec University – Exadata Courses for Developers and DBAs
It’s been a long time since my last blog and ever since I joined Enkitec I’ve been busy immersing myself in Exadata stuff. So most of the time I’m just posting my brain dumps on my wiki although I know...
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VirtaThon – Mining the AWR
Earlier I did a presentation at VirtaThon which is the same topic that I presented at Hotsos 2011.. Mining the AWR and Capacity Planning are very dear to my heart and up until now I’m using every...
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Oracle Database Appliance (ODA) Installation / Configuration
Earlier Oracle announced the Oracle Database Appliance which is a really cool RAC-in-a-box. And here at Enkitec office we are very lucky to get our hands dirty and play with this new beast On the photo...
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Mining EMGC Notification Alerts
The past few days, I’ve been troubleshooting an email alerting problem on an EMGC 11.1 install on a client site. But this troubleshooting also includes setting up my own email server and reproducing...
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Easy and fast environment framework
Getting tired of typing and setting your ORACLE_HOME, ORACLE_SID and troubleshooting your . oraenv ? going/connecting to different client sites with different platforms and server environments...
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SQLTXPLAIN quick tips and tricks and DB Optimizer VST
Lately I’ve been busy on projects and research so I’m putting more and more stuff on my wiki/braindump… and really I need to catch up on blogging. I have a longer draft post about SQLTXPLAIN.. but I...
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RMOUG 2012 training days
In the next few days I’ll be at RMOUG 2012 training days! and I’ll be again presenting the topic so dear to my heart. Mining the AWR I’ve updated the material with a couple of new research and...
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Fast Analytics of AWR Top Events
I’ve been working on a lot of good schtuff lately on the area of capacity planning. And I’ve greatly improved my time to generate workload characterization visualization and analysis using my AWR...
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IOsaturationtoolkit-v2 with Exadata IORM and AWESOME text graph
I’ve got a new version of IOsaturation toolkit which you can download here http://karlarao.wordpress.com/scripts-resources/ and it has a cool script called “smartscanloop” that shows you the Smart Scan...
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The effect of ASM redundancy/parity on read/write IOPS – SLOB test case! for...
Last week I had a lengthy post at oracle-l that tackles Calibrate IO, Short Stroking, Stripe size, UEK kernel, and ASM redundancy effect on IOPS Exadata which you can read here followed by interesting...
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Speaking at E4!
I’ll be co-speaking with Randy Johnson (one of the authors of Expert Oracle Exadata) at E4 to share about the war stories and detail on a bunch of technical stuff on a Peoplesoft and BIEE consolidation...
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OakTable World 2012
This Monday Oct 1, 2:00-2:50PM I’ll be presenting at the OakTable World which used to be called as Oracle Closed World, this year it’s a full two-day conference with awesome speakers lineup and very...
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Oracle Big Data Appliance First Boot
This is a quick video of our Big Data Appliance first boot yesterday in our server room (with Kerry and Andy), now she’s beside our two Exadata quarter racks all we have to do now is connect both of...
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RMOUG, IOUG Collaborate, KSCOPE, and E4 2013
I’ve been really busy lately doing a lot of stuff, and most of the time if I’m doing some intensive research on a topic I would just put them all in my braindump (wiki) so if you’ve been following this...
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Speaking at E4 2013! … and some Exadata Patents good stuff
I’ll be co-speaking with Tyler Muth at E4 and we will be talking about Performance Visualization… some of you may already know that I’m really a big fan of Tableau and just to give you an example on...
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OOW and OakTable World 2013
Today is the 1st day of OOW for me, and there are a lot of cool stuff going on. Sessions: ——————– Later I’ll be doing an IOUG session at Moscone West talking about CPU on how to monitor and do capacity...
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my Time/Task/Goal/Habit (TTGH) management
There was a post last night on oracle-l on the topic of task/project/time management, and I’m a big fan of productivity hacks and the whole GTD idea or method...
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Understanding the SCN
For the DBAs who want to have a refreser on SCN (system change number), this article article is very nice and explained clearly written by Sandeep Makol. It started on where you ‘ll find info for SCN...
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Yast on OEL
Lately I’ve been playing with Enterprise Manager Grid Control 10.2.0.4 on OEL 4.4 (I’ll upgrade this to 10.2.0.5 soon) and I’ve had a couple of product presentation and demo focusing on the Database...
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Diagnosing and Resolving “gc block lost”
Last week, one of our clients had a sudden slow down on all of their applications which is running on two node RAC environment Below is the summary of the setup: – Server and Storage: SunFire X4200...
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howto: github – talks branch
A couple of months ago I did a presentation and decided to put the files up in github (https://github.com/karlarao/conference_eco2015) just because I wanted to move away from dropbox for my scripts...
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Azure and Oracle Cloud – My First Time
Below talks about my experience trying out Azure and Oracle cloud for the very first time (and at the same time). So last night I tried for the very 1st time the Azure and Oracle Cloud. Here, I just...
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The ACE Scorecard
The newly introduced “Oracle ACE Program Scorecard” felt like I did a timesheet of my Oracle online footprint for the entire year. Spent most of the day (afternoon until midnight)...
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