http://www.mqtt.org/wiki/ 2012-05-17T03:56:33-07:00 FeedCreator 1.7.2-ppt DokuWiki 2012-05-05T04:20:24-07:00 2012-05-05T04:20:24-07:00 http://www.mqtt.org/wiki/doku.php/mosquitto_message_broker?do=revisions&rev=1336216824 dpslwk

Introduction Mosquitto is an Open Source MQTT v3.1 message broker written by Roger Light. It aims to provide the same features (and more) as IBM's Really Small Message Broker but as fully Open Source software. quick link -> to a blog post on getting started with Mosquitto on Ubuntu

2012-04-29T14:42:43-07:00 2012-04-29T14:42:43-07:00 http://www.mqtt.org/wiki/doku.php/bridge_protocol?do=revisions&rev=1335735763 ralight

Bridges should ideally handle the protocol slightly different to normal clients. From a thread on the google group: " You are right, RSMB recognizes when another RSMB connects to it via a bridge by using a different protocol version number (when try_private is true, which is the default). If that connect fails, then the bridge will fall back to MQTT 3.1. This internal protocol is the same as MQTT 3.1 except that: 1) the retained flags are propagated on publish packets, and 2) the s…

2012-04-29T14:37:15-07:00 2012-04-29T14:37:15-07:00 http://www.mqtt.org/wiki/doku.php/mqtt_protocol?do=revisions&rev=1335735435 ralight

Specification The current formal protocol specification can be found at: * MQTT v3.1 specification Clarifications As questions arise around particular aspects of the specification, we are collecting clarifications: * Topic format * Security considerations * Are topics dynamic? * Overlapping topics * KeepAlive for the client

2012-04-13T06:21:33-07:00 2012-04-13T06:21:33-07:00 http://www.mqtt.org/wiki/doku.php/keepalive_for_the_client?do=revisions&rev=1334323293 knolleary

The keepAlive timer section of the spec (<http://public.dhe.ibm.com/software/dw/webservices/ws-mqtt/mqtt-v3r1.html#keep-alive-timer>) does not properly identify the important of the keepalive for the client knowing that the server is still alive. In the case of QoS0 messages, the client could be happily sending them well within the KA interval and never know the server was hung. As it is currently worded in the spec, that would be acceptable.

2012-03-29T12:10:10-07:00 2012-03-29T12:10:10-07:00 http://www.mqtt.org/wiki/doku.php/mqtt_at_eclipse?do=revisions&rev=1333048210 andypiper

Eclipse Paho Paho is an Open Source machine-to-machine (M2M) messaging project. The project was proposed on November 3 2011 and it is currently in incubator status. Initial contributions were the Java and C clients for MQTT, donated by IBM. * Paho project page * Paho project wiki * project proposal

2012-03-29T09:16:00-07:00 2012-03-29T09:16:00-07:00 http://www.mqtt.org/wiki/doku.php/server_support?do=revisions&rev=1333037760 andypiper

This page documents the features that the various MQTT servers support. Server QoS 0 QoS 1 QoS 2 v3.1 auth bridge $SYS/ Mosquitto ✔ ✔ ✔ ✔ ✔ ✔ RSMB ✔ ✔ ✔ ✔ ✔ ✔ WebSphere MQ ✔ ✔ ✔ ✔ ✔ ✔ * list here any known additional limitations of individual implementations

2012-03-29T08:41:10-07:00 2012-03-29T08:41:10-07:00 http://www.mqtt.org/wiki/doku.php/example_uses?do=revisions&rev=1333035670 andypiper

If you know of good examples where MQTT is in use, please add them here. Further examples are described in comments to a post Do you use MQTT? on the mosquitto blog. Applications using MQTT * Gaian DB a distributed database * Location Aware Messaging for Accessibility, LAMA an IBM Extreme Blue Project * Say It, Sign It (SiSi) an IBM Extreme Blue Project