By default, Cassandra is configured to use half the ram of your
system. That's way overkill for playing around with it on a laptop.
Edit /etc/cassandra/cassandra-env.sh and set max_heap_size_in_mb to
something more suited for your environment.
I have it set to 256M for my laptop (with 4G of ram).
I'm running an underpowered laptop (ubuntu) for development work. Installing
Cassandra was easy, and getting the twissandra example app up and working was
also easy.
Here's the problem: after about a day of letting it run (with no load generated
to webapp or db), my laptop now becomes unrespons
