Hi, We use AMQ 5.13.1 and connect to AMQ using Eclipse Paho's MQTT V3 client lib to exchange MQTT messages between message publishers and durable subscribers. Some of our durable subscribers (running on Android app) may go offline for extended periods (say when mobile data connection is disabled for the app) and this results in messages getting accumulated for such subscribers on the broker.
One way to overcome this problem is to set message expiry so that AMQ can delete all expired messages. But MQTT specification does not support message expiry and hence I cannot set "TTL" for individual messages. Is there any hook from AMQ side to achieve the same effect (either at destination level or broker level)? I saw a configuration offlineDurableSubscriberTimeout that can help to achieve similar result. My question is : a) Will offlineDurableSubscriberTimeout cleanup offline subscribers even if there are unconsumed messages? b) Is there any better mechanism to achieve the desired result? Appreciate any help. Thanks, Shobhana -- View this message in context: http://activemq.2283324.n4.nabble.com/Support-for-setting-default-message-expiry-for-MQTT-messages-tp4710015.html Sent from the ActiveMQ - User mailing list archive at Nabble.com.
