Don't know if you figured this out, but I suspect the problem is that
bin/kafka-server-start.sh in the current 0.8.0 code has this line:
export KAFKA_HEAP_OPTS="-Xmx1G -Xms1G"
Which would override your attempt to set the heap size lower (or higher,
for that matter).
On Fri, Jan 31, 2014 at 1:45 PM, David Montgomery <[EMAIL PROTECTED]