i'm using the 5.8.0-snapshot, my setting: <transportConnector name="mqtt" uri="mqtt://113.31.65.60:1883?wireFormat.maxInactivityDuration=0"/>
And i got: 2012-10-22 16:10:45,674 | DEBUG | SampleJavaV3_subscribe MQTT Connection using heart beat of 60 secs | org.apache.activemq.transport.mqtt.MQTTProtocolConverter | ActiveMQ Transport: tcp:///124.127.108.134:7442@1883 2012-10-22 16:10:45,699 | DEBUG | MQTT Client connected. | org.apache.activemq.transport.mqtt.MQTTProtocolConverter | ActiveMQ Transport: tcp:///124.127.108.134:7442@1883 2012-10-22 16:12:45,674 | DEBUG | 60000 ms elapsed since last read check. | org.apache.activemq.transport.mqtt.MQTTInactivityMonitor | InactivityMonitor ReadCheck 2012-10-22 16:12:45,709 | DEBUG | Sent Ping Response to | org.apache.activemq.transport.mqtt.MQTTProtocolConverter | ActiveMQ Transport: tcp:///124.127.108.134:7442@1883 2012-10-22 16:13:45,675 | DEBUG | 60001 ms elapsed since last read check. | org.apache.activemq.transport.mqtt.MQTTInactivityMonitor | InactivityMonitor ReadCheck 2012-10-22 16:14:45,675 | DEBUG | 60000 ms elapsed since last read check. | org.apache.activemq.transport.mqtt.MQTTInactivityMonitor | InactivityMonitor ReadCheck 2012-10-22 16:14:45,675 | DEBUG | No message received since last read check for tcp:///124.127.108.134:7442@1883! Throwing InactivityIOException. | org.apache.activemq.transport.mqtt.MQTTInactivityMonitor | InactivityMonitor ReadCheck 2012-10-22 16:14:45,677 | WARN | Transport Connection to: tcp://124.127.108.134:7442 failed: org.apache.activemq.transport.InactivityIOException: Channel was inactive for too (>60000) long: tcp://124.127.108.134:7442 | org.apache.activemq.broker.TransportConnection.Transport | MQTTInactivityMonitor Async Task: java.util.concurrent.ThreadPoolExecutor$Worker@6e659812[State = 0, empty queue] -- View this message in context: http://activemq.2283324.n4.nabble.com/MQTT-Impossible-to-disable-InactivityMonitor-tp4657945p4658032.html Sent from the ActiveMQ - User mailing list archive at Nabble.com.