dbi services Blog
Welcome to the dbi services Blog! This IT blog focuses on database, middleware, and OS technologies such as Oracle, Microsoft SQL Server & SharePoint, EMC Documentum, MySQL, PostgreSQL, Sybase, Unix/Linux, etc. The dbi services blog represents the view of our consultants, not necessarily that of dbi services. Feel free to comment on our blog postings.
Second day in this amazing event. There are not only general and presentation sessions you can also participate on a so called "Hands-on Lab". The subject was the "EMC Documentum Platform Performance Tuning". So learning by doing is also a good opportunity you can use at Momentum to enhance your skills.
A couple of weeks ago, I had an interesting discussion with one of my friend that faced a weird issue with a SQL Server instance that lacked worker threads. Because I can’t use his own information I decided to reproduce the same issue in order to share with you some interesting information. So the next part of this blog post refers exclusively to my own test but it represents exactly the real issue encountered by my friend.
I guess you all already know what a lifecycle is. We born, we live and we die... In fact, it's exactly the same for Aflresco Nodes! Well, at least from an end user point of view. But what is really going on behind that? This is what I will try to explain in this post.
In the previous blog post I measured how inserting 1 million rows takes 5 minutes instead of 45 seconds when we commit at each row inserted. In Oracle we can improve that down to 2 minutes if we can accept (and manage) the loss of transactions following an instance crash.
Let's go further. For OLTP that need to face a high rate of transactions, Oracle has TimesTen which is a Database In-Memory - meaning that it is optimized for in-memory structures. My testcase has a 1 million rows table that can fit in memory, so let's try it.
Before starting talking about EMC event, I just would like to share my feeling about the city it takes place. It is Las Vegas, ok, what an amazing, impressive place! On top of that, we are in one of most beautiful hotels on the strip ! Congratulations to EMC and thanks for this attention.