Cassandra

NYC Cassandra User Group Register for this event here: *******  http://predictingfutu... **********read more

NYC Cassandra User Group *** RSVP at http://bigdatadrinkup... *** (not here) The NoSQL NYC Meetup is happy to be co-hosting the Big Data Drinkup.read more

Composite columns allow a list of types to be packed into single column. One of the benefits of composites is they also sort properly with respect to multiple components. While higher level clients like Hector and Pycasa already have support for ... [More] composite columns, support may not yet be in place for the particular client you are using. This recipe shows a simple way to write a Composite Column from java. Since this program uses only simple byte arrays it should be easy to port this program to another programming language.read more [Less]

Cassandra DC Meetupread more

NYC Cassandra User Groupread more

Bay Area Cassandra User Group This month, the folks at Formspring have invited us to drop by their offices at 450 Mission street to hear about how they're using Cassandra in their organization. I'll be publishing the details of their presentation in ... [More] the next few days. We'll open the doors at at 6:30 and serve pizza/beverages. The talk will start at 7:15.read more [Less]

Spoke the other night with Jake Luciani at the NYC Chapter of the League or Professional System Administrators about Cassandra. LOPSA is a fantastic organization that promotes Sysadmin issues and education.  They have mentoring programs, conferences and meetups all around the world. It’s a great place … Continue reading →

Bulk loading data in Cassandra has historically been difficult. Although Cassandra has had the BinaryMemtable interface from the very beginning, BinaryMemtable is hard to use and provides a relatively minor throughput improvement over normal client writes. Cassandra 0.8.1 introduces a new tool to solve this problem: sstableloader read more

Cassandra Internals by Gary Dusbabek of RackspaceQuestions?What's the best way to access data if you're running a program in the same JVM as Cassandra? -- will talk about it during StorageProxy section of the talkPerformance characteristics of using ... [More] MMAP vs. not using it? - won't cover it.When does repair happen?  will talk about it during repair part of the talkHow do Snitch and replication strategy work together?read more [Less]

Migration From 100s to 100s of Millions – Messaging to Mobile Devices with Cassandra at Urban Airship Urban Airship - provides hosting for mobile services that devs should not build themselves (e.g. push notifications, content delivery services ... [More] , etc). Provide a unified API for all these services across all platforms (Andriod, iOS, RIMM, etc).read more [Less]