Posts Categorized: Group Blog Posts
We’ve got a few clients already using Enterprise Manager 12c Cloud Control. The interface and navigation have improved a lot from the 11g version in my opinion but, as with any new release of anything, there are still quite a few bugs to be fixed. Last week, after working with Oracle on some of these bugs, they asked us to apply the Bundle Patch 1 (BP1) to one of our clients’ installation. The first thing that I noticed when I started looking for information about BP1 was the amount of warnings from different people I found in MOS and around the internet.
So how is the actual “waiting on lock” implemented? How does session B waiting for a transaction to commit started by session A, knows that the resource is free for use? To find out how it is implemented, I have traced Oracle foreground processes. I tried this on Oracle RDBMS 184.108.40.206 running on Linux. This is a excerpt of system calls being executed during a session waiting for a lock:
This is just a very short blog entry to inform folks that there is an open discussion group over at LinkedIn for SLOB topics of interest. The group can be accessed through the following link
Update 13-June-2012: it has come to my attention that the numbers from the original source may have been incorrect or improperly released. To avoid confusion and potentially misleading information, the original content of this blog post has been removed.
The first MySQL/MariaDB/NoSQL Latin America event is on its way and Pythian will have a MySQL guy there. Yes, Francisco Bordenave is going to be one of the speakers. I am presenting a conference about Replication in MySQL, how to’s and what’s new in newer versions. This is a very important event and many of our friends will be there.
Simple issue that Mark Callaghan mentioned on DDL operation. I found the back porting interesting, not always a possible option, and the out-coming results. Nothing to comment on top of what was already stated there, but mentioning it because interesting to read.
This posts finalizes a few weeks work on comparing SLOB and ORION IO testing tools.
In this blog post I share physical IO testing results I got running SLOB and ORION on the same system on the same disks. I will use those results as a reference in few next blog posts. As of now I would like to make few points based in the results here.
As heralded by Iggy Fernandez and Gwen Shapira, NoCOUG has launched its Third International SQL vs. NoSQL Challenge. Pythian is sponsoring the challenge so I decided not to take part in the contest. However, I’m still having a crack at the problem just for fun. So, here is my first take on it.
Start spreading the news… Today, Pythian announced the opening of a new office and the expansion of its sales force in New York City to meet increasing demand among data-dependent companies for expert, responsive DBA support.