Sticky sessionsĬlients can make use of sticky (or non-clean) sessions to ensure they receive messages that were published whilst they were disconnected. Last Will and Testament (LWT)Ĭlients can provide a LWT message during connection that will only be published if the client disconnects unexpectedly, e.g. While clients are permitted to request QoS 2 subscriptions, the adapter will only grant subscriptions up to QoS 1. In MQTT QoS relates to transport assurance as well as persistence - the plugin honours both. The MQTT adapter supports QoS 0 (at most once) and QoS 1 (at least once) semantics. We encourage projects that demand the combination of a low-overhead protocol on a robust, scalable broker with high reliability and enterprise features to consider this option. The implementation is a protocol adapter plugin, allowing MQTT clients to connect to a RabbitMQ broker simultaneously with clients implementing other protocols. MQ Telemetry Transport is a light-weight PUB/SUB protocol designed for resource-constrained devices and limited bandwidth situations, making it ideally suited to sensors and mobile devices. I’ve written a plugin for RabbitMQ that adds support for the MQTT 3.1 protocol. Breaking things with RabbitMQ 3.0 » MQTT Adapter Tweet Follow 12, 2012
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