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). This works just fine for light development tasks and for running our test suite. -psanford On Mon, Oct 10, 2011 at 1:44 PM, Gary Jefferson <garyjefferson...@yahoo.com> wrote: > 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 unresponsive. If I'm > patient, I can shutdown the cassandra service and return things to normal. In > each of these cases, the cassandra process is eating up almost all memory, > and everything goes to swap. > > I can't develop against Cassandra in this environment. I know it isn't set up > by default to work efficiently on a meager laptop, but are there some common > setting somewhere that I can just tweak to make life not be so miserable? I > just want to play with it and try it out for this project I'm working on, but > that's impractical with default settings. I'm going to have to flee to > mongodb or something not as good... > > I'm also a little nervous about this running on a server now -- I've read > enough to understand that by default it's set up to eat lots of memory, and > I'm fine with that... but it just lends itself to all the java bigotry that > some of us accumulate over the years. > > Anyway, if someone can give me a pointer on how to set up to run on a laptop > in a development setting, big thanks. > > Thanks! > Gary >
