Hi guys, I set up activemq based on this document https://puppet.com/docs/mcollective/current/deploy/middleware/activemq.html
Everything worked fine until we got 6000 more servers subscribed. Sys memory: brokers config transport = 0.0.0.0:61616?jms.prefetchPolicy.all=100000& <bean id="prefetchPolicy" class="org.apache.activemq.ActiveMQPrefetchPolicy"> <property name="queuePrefetch" value="100000" /> </bean> <systemUsage> <systemUsage sendFailIfNoSpace="true"> <memoryUsage> <memoryUsage limit="2 gb"/> </memoryUsage> <storeUsage> <storeUsage limit="5 gb" name="foo"/> </storeUsage> <tempUsage> <tempUsage limit="1 gb"/> </tempUsage> </systemUsage> </systemUsage> I see the next error after which master broker & slaves cannot communicate to each other: 2019-03-13 13:03:49,078 | WARN | TopicSubscription: consumer=broker1->broker2-38486-1552507411577-12:1:1:1, destinations=6, dispatched=1000, delivered=0, matched=1001, discarded=0: has twice its prefetch limit pending, without an ack; it appears to be slow | org.apache.activemq.broker.region.TopicSubscription | ActiveMQ Transport: ssl:///192.168.12.6:45626 Is there any workarounds around this? Thanks -- Sent from: http://activemq.2283324.n4.nabble.com/ActiveMQ-User-f2341805.html