Hi, This issue was identified while we were fixing MQTT library dependencies in the load balancer. It seems like we have not configured Paho MQTT logging in any of the stratos components.
The result is that we do not see any of the errors raised by the MQTT libarary. In the load balancer it was throwing a class not found exception but it was not visible in the log due to this reason. https://issues.apache.org/jira/browse/STRATOS-914 https://wiki.eclipse.org/Paho/Log_and_Debug_in_the_Java_client Thanks -- Imesh Gunaratne Technical Lead, WSO2 Committer & PMC Member, Apache Stratos