Database Reference
In-Depth Information
of data size. To get around that, we did multiple optimizations, including keeping
data off-heap when possible, and restricting heap size to a maximum of 8GB.
Summary
We use Cassandra very heavily at eBay. It powers applications ranging from our
graph-based recommendation system to aiding in real-time insights and fraud de-
tection. The sheer volume of data that we push through our various Cassandra
clusters makes the requirement for a redundant, performant, and highly available
system a daunting task. We have learned many lessons over the years, ranging
from data modeling and application design to proper hardware setup and data
flow. We hope that these lessons have helped you in designing and planning your
Cassandra-based applications.
