Monthly Archives: March 2012

Redis as Messaging Middleware

I needed a simple middleware for fluxua, my Hadoop workflow engine project on github. In fluxua, you define a set of Hadoop jobs running as an workflow. The dependency between the jobs is represented as a directed acyclic graph (DAG). … Continue reading

Posted in Key Value Store, Messaging, Redis | Tagged , | 3 Comments

Cassandra Range Query Made Simple

In Cassandra, rows are hash partitioned  by default. If you want to data sorted by some attribute, column name sorting feature of Cassandra is usually exploited. If you look at the Cassandra slice range API, you will find that you … Continue reading

Posted in Cassandra, NOSQL | Tagged , , | 7 Comments