My updates have been slow recently due to other things I’m involved in. If you need more updates around what I’m reading, please feel free to follow me on twitter or buzz. Here are some of the big ones I have mentioned on my twitter/buzz feeds. Tools: Real-time Relationship Analytics from large scale graph processing [...]

Introduction to Cassandra (June 2010) View more presentations from gdusbabek. Whats not mentioned in the slide was Gary’s reference to the number of key changes in 0.7 version of Cassandra. He thinks beta would be out in a month and that it will address a lot of issues which is currently keeping a lot of [...]

Most of us who deal with traditional databases take auto-increments for granted. While auto-increments are simple on consistent clusters, it can become a challenge in a cluster of independent nodes which don’t use the same source for the unique-ids. Even bigger challenge is to do it in such a way so that they are roughly [...]

A few of us joined in at the new Twitter office in downtown SF (right next to Moscone Center) and were for the first time shown what Twitter is doing about  “Twitter Annotations”. We probably created the first set of 3rd party applications around this new API. During the Hackathon I spent some time to [...]

For some reason there has been a disproportionately high number of news items on Cassandra lately. Some of those are included below, but also included are some other interesting updates which you might have missed. Rackspace and Drizzle: Its time to rethink everything Haproxy 1.4 – Now supports mysql health checks – This is a [...]

Few weeks ago while I was mulling over what kind of service registry/discovery system to use for a scalable application deployment platform, I realized that for mid-size organizations with complex set of services, building one from scratch may be the only option. I also found out that many AWS/EC2 customers have already been using S3 [...]

This is a very interesting talk by Jonathan Ellis on database scalability. He designed and implemented multi-petabyte storage for Mozy and is currently the project chair for Apache Cassandra. What every developer should know about database scalability, PyCon 2010 View more presentations from jbellis. Scalability is not improving latency, but increasing throughput But overall performance [...]

Cassandra is the only NOSQL datastore I’m aware of, which is scalable, distributed, self replicating, eventually consistent, schema-less key-value store running on java which doesn’t have a single point of failure. HBase could also match most of these requirements, but Cassandra is easier to manage due to its tiny footprint. The one thing Cassandra doesn’t [...]