Posts Categorized: Technical Blog
ourSquare, the location based social network, suffered from extended outage yesterday. They explained the causes in a blog post, which caused much discussion around the web. Here’s the gist of the analysis: FourSquare are using MongoDB, which is a sharded database. Data is split between nodes based on a shard key, usually the User ID or something similar. One of the shards became overly loaded. After failing to resolve the issue in other ways, FourSquare decided to add another shard to share the load. This caused the entire cluster to fail.
Welcome to Log Buffer. The weekly roundup of posts, and news of what’s happening in the database world.
I wrote my very first Catalyst plugin, and it’s going to be something useful for Galuga. As I don’t have a lot of time, I’ll be succint. As you’ve doubtlessly gathered by now, the name of the game is Catalyst::Plugin::Sitemap. It’s on Github, but it’s not CPANized yet. To use it, add the plugin to your Catalyst app main module
If you have tried to automate EBS cloning then you definitely know that you can’t get through without hacking and customizing the Oracle-provided Rapid Clone utility. One of the areas we should “hack” the code to make it running in batch scripts is the services startup bit. The problem is that by default straight after Rapid Clone is completed Oracle starts all the services on the Apps node and until now there wasn’t a way to change it.
The Oracle OpenWorld 2010 conference is over and life is getting back to normal. However, this is a traditional time for the OOW after-parties and local meetings to discuss the results of the biggest annual event in Oracle space. Our Sydney Oracle Meetup is not an exception.
This post has bee updated live from the Oracle OpenWorld as I’m learning what’s new. Last update done on 28-Sep-2010. X2-2 and X2-8 configurations have evolved over time so if you are reading this post now — beware of its age. The referenced data-sheets seems to be up to date though.
Liveblogging announcements from Sunday’s Oracle OpenWorld Keynote.
The Pythian Group, Inc., a leading provider of remote database infrastructure services, and a Platinum member of the Oracle PartnerNetwork (OPN), today announced it has achieved four specializations under the OPN Specialized Program. By attaining “specialized status” Pythian has demonstrated and met rigorous business and technical competency criteria for core Oracle solutions including Oracle Database 11g, Database Performance Tuning, Oracle Real Application Clusters (RAC), and Oracle Linux. Through specialization Pythian demonstrates solid experience, expertise and success with planning, deploying and managing Oracle products in complex and large-scale environments, providing added value to Oracle end-customers.
Stay tuned here for Pythian commentary on the Oracle Exalogic Elastic Cloud, as soon as it has been announced! So on our way from the Exadata Partner Briefing session to Moscone West, we went down to the tunnels by the keynote halls, and we saw some new branding that we had not yet seen.
I started this post with the intention to write about what I expect Oracle to announce at this OpenWorld and it seems like the most important announcements happen at tonight’s keynote. I hasn’t been at the Oracle ACE Directors briefing so unlike them, all I can say is pure speculation-based and my wishes of what should be covered.