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Pythian Group Blog - May 30, 2008
Welcome the the 99th edition of Log Buffer , the weekly review of database blogs. Since PGCon recently happened right here in Ottawa, let’s start with some posts about it, and about PostgreSQL. Josh Berkus came to the …
Tagged: sql server, oracle, mysql, postgresql, log buffer
Pythian Group Blog - May 29, 2008
Twitter has had many outages recently. On May 17th, 2008 http://blog.twitter.com/2007/05/devils-in-details.html was posted and says: What went wrong? We checked in code to provide more accurate pagination, to better …
Tagged: group blog posts, non tech articles
Pythian Group Blog - May 29, 2008
In my previous post, I described the most common cause for unstable plans due to bind peeking — histograms. It is now time to move forward and take a look at another case, namely range-based predicates. Strictly …
Tagged: oracle, bind peeking
Pythian Group Blog - May 25, 2008
Imagine yourself, happily computing (or whatever it is that you do with your computer). It’s a fine, sunny day, narry a cloud in the sky, and you’re happily typing along when all of a sudden you hear a rather alien …
Tagged: vista, hard drive, crash, knocking, group blog posts, clicking
Pythian Group Blog - May 24, 2008
The 98th edition of Log Buffer , the weekly review of database blogs, has been published on Jeff’s SQL Server Blog. Log Buffer is a shared project of the DBA blogging community, so you’re welcome to edit and publish …
Tagged: sql server, oracle, mysql, postgresql, log buffer
Pythian Group Blog - May 22, 2008
Welcome ASH Masters! I have already mentioned about the excellent work that Kyle Hailey did around Active Session History (ASH). Kyle has also created ASHMON. The latest news — there is a new web site — …
Tagged: performance, oracle, ash, tuning, group blog posts
Pythian Group Blog - May 22, 2008
Recently, I had a few email exchanges — on the Oracle-l list and offline — about HW enqueue contention. A few interesting observations emerged from test cases I created during that discussion. HW Enqueue When a …
Tagged: oracle, oracle e business suite, hw
Pythian Group Blog - May 22, 2008
Todd Hoff, who apparently learned a hell of a lot during a short stint at Yahoo followed by some startups has an extremely well-written and edutaining article about how scaling to a million or more users requires …
Pythian Group Blog - May 18, 2008
I understand that MySQL as a company wants to recruit paying customers. However, as a community user I have a hard time finding what I want on the MySQL website. Today’s frustration is brought to you by trying to find …
Tagged: user interface, website, mysql, group blog posts, non tech articles
Pythian Group Blog - May 17, 2008
One of the most frequently needed functionality in the MySQL Proxy is the need to know which server you are on. This is not given, on purpose, by the proxy, because the proxy is supposed to be transparent. It is not …
Tagged: code, proxy, mysql, group blog posts