Apple Upset – upgrading to iPhone 7

Upgrading is always stressful – be it a computer, an Oracle database or an iPhone. There’s always a good chance for lost data and lost time dealing with complications.

So yesterday I picked up a new iPhone 7 from Verizon. The pickup was seamless. I had signed up for an upgrade program when I got the iPhone 6, so now I just walked in, gave them my old iPhone 6 and they gave me an (more...)

Why does my full table scan take 10x longer today ?!

Every so often a DSS query that usually takes 10 minutes ends up taking over an hour.  (or one that takes an hour never seems to finish)

Why would this happen?

When investigating the DSS query, perhaps with wait event tracing,  one finds that the query which is doing full table scans and should be doing large multi-block reads and waiting for “db file scattered read” is instead waiting for single block reads, ie (more...)

Amazon announces Performance Insights

Excited to see the announcement of Amazon RDS Performance Insight feature for database performance monitoring and tuning.

Having met the team for this project I can say from my personal view point that the importance and future success of this feature is clear as day to me. The team is awesomely sharp, the architecture is super impressive, and this is by far the most exciting performance monitoring and feedback system I’ve been involved with,  surpassing the (more...)

SQL*PLus on Mac

I would think installing SQL*Plus on the Mac would be point, click download, point click, install bam it works.

Nah

It did install mostly straight forward on my old Mac. Got a new Mac and no dice.

Tried installing myself guessing at the downloads. First of all why isn’t there just one download?

Downloaded instantclient and instantclient with SQL*Plus which turns out to be correct, but no dice. Still got errors.

Got errors. Gave up.

Came (more...)

Started at Amazon! … want to join me?

 

 

 

(Disclamer: any opinions expressed here are fully my own and not representative of my employer)

11039191375_cac06fb854_z

photo by alvaroprieto  (cc 2.0)

Super excited to be working at Amazon on my passion which is performance data visualization and database monitoring. Suffice it to say this is the most excited I’ve been about work in my career and I’ve had ample opportunity to work on database performance in the past such as at (more...)

Oaktable World 2016 Sept 19 & 20 is on !!

Having take a new job at Amazon just two weeks ago and moving to Seattle (!)  I didn’t have the time nor was it practical to set up Oaktable World  this year. Luckily Kelly Pot’vin has taken over the mantel !

Get the info straight from the horses mouth at her blog.

The following content has been graciously supplied from Kellyn’s blog:

Oak Table World is FREE to the PUBLIC!  We don’t require an (more...)

Denial of Service (DoS) attacks continue

It’s frustrating to have to spend time jumping off into web security and wordpress configurations when there are so many other things that are important to be doing. Today the DoS continued and the Jetpack solution didn’t seem to work. The other two solutions from Digital Ocean didn’t seem reasonable. One was to re-install wordpress with there install version. Nice that they offer a better security protected version but I didn’t feel like re-installing my (more...)

Denial of Service (DoS) attach on this site

This site had been running for a years with no big issues.
I had performance and system saturation issues about 3 years ago and then move the site to DigitalOcean.com.

They are inexpensive and the performance is awesome.

Then last Monday and every day since the site had been going down.
Simplest “solution” for me was just to get on and bounce the machine.

That cleared it up.

After this went on for a (more...)

Speaking at OOW 2016 on Sunday on Active Session History

Session ID: UGF3110

Advanced Active Session History Analytics
Moscone West—3020
09/18/16, 03:30:00 PM – 04:15:00 PM

 

 

Moving to Seattle! Our beautiful rental available in San Francisco

27552681126_8d52a09180_z

More news coming, but for now, we (family and I) are moving to Seattle! We will be giving up our gorgeous rental house in San Francisco thus it will be available to the next lucky family.

Elegant mediterranean style family home on a quiet tree lined street in a sweet residential neighborhood just minutes from downtown and the Peninsula. 

Photos of house

.

Perfect location for commuting to Peninsula on 280  or downtown SF (more...)