I could use some help understanding memory usage & limits in activemq. 5.3.1 is what I'm running, fwiw.
1. Out of the box, <systemUsage> in activemq.xml is commented out. I'm passing ACTIVEMQ_OPTS="-Xmx2048M ...". What is the default behavior in that case? Does that mean activemq will take advantage of the 2gb heap by default, or do I need to configure <memoryUsage> explicitly? If it needs to be explicit, can I safely set <memoryUsage limit="2 gb"/> ? If not, what's a recommended setting given -Xmx2048M? 2. On <policyEntry>, what exactly does "memoryLimit" do? I have producerFlowControl="false", and I wasn't sure if memoryLimit only applies when producer flow control is enabled, or what? 3. What happens if you set the <policyEntry> elements' memoryLimit to the same size as your heap and/or <memoryUsage limit>? I'd like to understand the interaction of all of these factors. Any info you can provide would be MUCH appreciated!!! Thanks, Dan -- View this message in context: http://old.nabble.com/Help-understanding-memory-usage-limits-tp28118112p28118112.html Sent from the ActiveMQ - User mailing list archive at Nabble.com.
