February 2017

Can AWS EC2 Instances “Exist” Without Any Volumes?

When tearing down an AWS Delphix Trial, we run the following command with Terraform:

>terraform destroy

I’ve mentioned before that every time I execute this command, I suddenly feel like I’m in control of the Death Star in Star Wars:

The AWS Trial and Changing IP Addresses

Now, for most of us, we’re living in a mobile world, which means as our laptop travels, our office moves and our IP address changes.  This can be a bit troubling for those that are working in the cloud and our configuration to our cloud relies on locating us via our IP Address being the same as it was in our previous location.

Band Join 12c

One of the optimizer enhancements that appeared in 12.2 for SQL is the “band join”. that makes certain types of merge join much more  efficient.  Consider the following query (I’ll supply the SQL to create the demonstration at the end of the posting) which joins two tables of 10,000 rows each using a “between” predicate on a column which (just to make it easy to understand the size of the result set)  happens to be unique with sequential values though there’s no index or constraint in place:

9th Circuit Court Ruling 3-0

Little did I know this building that captured my visual attention and imagination so many times walking to work over the last 6 months would play a historic roll in the current political climate.

Here is a picture of the US District Court House from recent articles

Screen Shot 2017-02-11 at 9.19.43 PM

 

And here are some of my iPhone shots over the last few months with some Instagram filtering mixed in :)

Provisioning a VFile App to Connect to a VDB

I ran across an article from 2013 from Straight Talk on Agile Development by Alex Kuznetsov and it reminded me how long we’ve been battling for easier ways of doing agile in a RDBMS environments.

TCP WMEM Fault in Delphix AWS Target

So you thought you were finished configuring your AWS target, eh?  I already posted a previous time on how to address a fault with the RMEM, but now we’re onto the WMEM.  Wait, WM-what?

SLOB Use Cases By Industry Vendors. Learn SLOB, Speak The Experts’ Language.

For general SLOB information, please visit: https://kevinclosson.net/slob.

List of Vendors Who Publish SLOB Testing Results

The list of vendors’ SLOB use cases discussed in this blog post are (in no particular order):

  • flashgrid.io
  • VMware
  • A joint paper co-branded by Intel and Quanta Cloud Technologies
  • VCE
  • Nutanix
  • Netapp
  • HPE
  • Pure Storage
  • Nimble
  • IBM
  • Red Hat
  • Dell EMC
  • Red Stack Tech.

Beyond vendors, I’ll show SLOB usage at Kernel.org as well.

Index bouncy scan

There’s a thread running on OTN at present about deleting huge volumes of duplicated data from a table (to reduce it from 1.1 billion to about 22 million rows). The thread isn’t what I’m going to talk about, though, other than quoting some numbers from it to explain what this post is about.

Preparing AWS for the Delphix Trial

There are more configurations for AWS than there are fish in the sea, but as the rush of folks arrive to test out the incredibly cool AWS Trial for Delphix, I’ll add my rendition of what to look for to know you’re AWS setup is prepped to successfully deploy.

Empowering Your Slides- Tips with PowerPoint

Ah, yes, it’s that RMOUG Training Days time of the year again!

As a techie, I didn’t put a lot of time into my slides when I first started presenting, thinking I’d simply dazzle them with my amazing knowledge.