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MQTT clientId should be unique 

Each mqtt hook establishes separate connection to the MQTT broker. If
their clientIds are all equal the MQTT broker will disconnect the clients - the
protocol does not allow 2 connected clients with the same name
This commit is contained in:
Plamen Todorov 2019-10-06 22:08:43 +03:00
parent 5abadd72a3
commit fb2aef2ce6
1 changed files with 3 additions and 1 deletions
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4
internal/endpoint/mqtt.go
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@ -83,7 +83,9 @@ func (conn *MQTTConn) Send(msg string) error {
} }
ops = ops.SetTLSConfig(&config) ops = ops.SetTLSConfig(&config)
} }
ops = ops.SetClientID("tile38").AddBroker(uri) nano := time.Now().UnixNano()
clientID := fmt.Sprintf("tile38_%x", nano) //the id of connected clients should be unique
ops = ops.SetClientID(clientID).AddBroker(uri)
c := paho.NewClient(ops) c := paho.NewClient(ops)
if token := c.Connect(); token.Wait() && token.Error() != nil { if token := c.Connect(); token.Wait() && token.Error() != nil {