64GB is a very large server in my experience. Many use-cases do not require this much memory, although some do. In fact, I've seen 2GB servers perform very well - again, for specific use-cases.
As far as swapping - most Linux servers I've seen in the last 5 years (longer really) are configured without swap. That tends to be a wise thing as swapping can cause tremendous performance problems for any server. Tuning the size of the JVM heap is important and valuable here too, especially on a server that has swapping enabled. One fairly generic piece of advice I tend to give on this front - keep ActiveMQ on a dedicated server (i.e. don't run it on the same server as application software or other services, such as Cassandra). Hope this helps! -- View this message in context: http://activemq.2283324.n4.nabble.com/question-for-users-of-NFS-master-slave-setups-tp4708204p4708565.html Sent from the ActiveMQ - User mailing list archive at Nabble.com.
