Agile Motivations and Objections
Often when I first start talking to someone new about Agile and/or Scrum, they have questions and occasionally objections. More often they just don’t underst...
Recent Posts
Fixing styling incompatibility with Google Charts and Twitter Bootstrap
Ran into a vexing issue this week when we upgraded to using Twitter Bootstrap. Some of our analytics graphs using Google Charts were suddenly broken in IE 7/...
Hadoop from a Python Perspective
I’m just coming off a project where we decided to use Hadoop for the first time. We’re a Python shop developing an analytics feature. We have about 150m reco...
Sqoop/HBase Quickstart on Linux
Sqoop is a tool for bulk copying data between a relational database like MySQL and HDFS or another Hadoop based data store like Hive or HBase. It can either ...
High availability via client libraries versus dedicated services
Some newer storage technologies allow you to connect to one of a set of servers right from their client library. For example, MongoDB lets you specify one ho...
Write CSV data into Hive and Python
Apache Hive is a high level SQL-like interface to Hadoop. It lets you execute mostly unadulterated SQL, like this:
Hive with HBase Quickstart
Though there is some decent documentation, I found that setting up Hive with a HBase back-end to be somewhat fiddly. Hopefully this guide will help you get s...
Happybase Connection Pooling
Wrote a simple connection pool for Happybase using socketpool.
HBase Schema Introduction for Programmers
Schema design in NoSQL is very different from schema design in a RDBMS. Once you get something like HBase up and running, you may find yourself staring blank...
Python pickle AttributeError ‘module’ object has no attribute ‘foobar’
Ran into an interesting edge case with pickle this week. I had a producer task that was querying objects from a database, and pickling them plus a reference ...