Subscribe more than 8 topics in sequence will be failed
s0920832252 opened this issue · 2 comments
s0920832252 commented
When i subscribe more than 8 topics , the event MqttMsgSubscribed won't be triggered.
according the situation , i think the subscribtion is not successed. but i don't know why...
how can i fix it , please help me ,
Thanks.
my need is subscribe at lease 20 topics.
_mqttConnecter.AddTopic($"$aws/things/test-{_localID}1/shadow/update", MqttMsgBase.QOS_LEVEL_AT_LEAST_ONCE);
_mqttConnecter.AddTopic($"$aws/things/test-{_localID}2/shadow/update", MqttMsgBase.QOS_LEVEL_AT_LEAST_ONCE);
_mqttConnecter.AddTopic($"$aws/things/test-{_localID}3/shadow/update", MqttMsgBase.QOS_LEVEL_AT_LEAST_ONCE);
_mqttConnecter.AddTopic($"$aws/things/test-{_localID}4/shadow/update", MqttMsgBase.QOS_LEVEL_AT_LEAST_ONCE);
_mqttConnecter.AddTopic($"$aws/things/test-{_localID}5/shadow/update", MqttMsgBase.QOS_LEVEL_AT_LEAST_ONCE);
_mqttConnecter.AddTopic($"$aws/things/test-{_localID}6/shadow/update", MqttMsgBase.QOS_LEVEL_AT_LEAST_ONCE);
_mqttConnecter.AddTopic($"$aws/things/test-{_localID}7/shadow/update", MqttMsgBase.QOS_LEVEL_AT_LEAST_ONCE);
_mqttConnecter.AddTopic($"$aws/things/test-{_localID}8/shadow/update", MqttMsgBase.QOS_LEVEL_AT_LEAST_ONCE);
shoover commented
It's a protocol limitation (AWS). You can subscribe multiple batches of 8 on the same connection.
s0920832252 commented
thanks , you are right.
my example code has error.
the AWS limitation are
- not more than 50 topices on the same connection.
- not more than 8 topices on the same subscribed action
sorry about this.