Hi, I use libmosquitto as MQTT client. One day, I found MQTT connection lost, I checked log that recorded a few reconnection events, but it stopped to reconnect with Unable to connect (Lookup error.) In log, there is a strange scenario: the app try to subscribe topic, this is invoked...
log("Trying to connect to mqtt with hostname: " + hostname + " and clientid " + clientid); let mqttClient = new window.Paho.MQTT.Client(wsbroker, wsport, clientid); mqttClient.onConnectionLost = function (responseObject) { console.log("connection lost: " + responseObject.errorMessage...
on_disconnect() callback. This has resulted in two new error codes, MOSQ_ERR_KEEPALIVE and MOSQ_ERR_LOOKUP. - Fix connection problems when mosquitto_loop_start() was called before mosquitto_connect_async(). Closes #848. Clients: ...
The error look like a common name mismatch. The client should connect to the mqtt broker using the same ip address or domain name as configured on the certificate. I have tried it on a docker image but if you contact me using the ask steve page and send me your cert I can try it. ...
“socket.gaierror: [Errno 11001] getaddrinfo failed” I can connect perfectly to the broker through “MQTT Explorer”, indicating the same parameters [host, port, username, password, protocol=”ws://”, and Server certificate (CA)] and checking the options “Validate certificate”=true and ...
m_lastErrorString = QString("%1: %2").arg(__FUNCTION__).arg(mosq_error_string(r)); emit error(); return r; } if (connectSocketNotifiers()==false) { return MOSQ_ERR_NOT_FOUND; } emit connecting(); return r; } void QMosquitto::timerEvent(QTimerEvent *event) {...
(WITH_ADNS) if(context->adns){ /* Connection attempted, waiting on DNS lookup */ rc = gai_error(context->adns); if(rc == EAI_INPROGRESS){ /* Just keep on waiting */ }else if(rc == 0){ rc = bridge__connect_step2(db, context); if(rc == MOSQ_ERR_SUCCESS){ #ifdef WITH_...
(AzureIOTHub_conn_str)# Connect the device client.awaitdevice_client.connect()print(str(datetime.now())+" | Async connection established to Azure IOT")# Send a single messageprint(str(datetime.now())+" | Sending message to Azure IOT Hub")msg=Message("{ \"D...
is sent/received on a topic. Jitter is useful to reduce lookup storms that could occur every auth/acl_cacheseconds if lots of clients connect at the same time (for example after a server restart, all your clients may reconnect immediately and all may cause ACL lookups every acl_cacheseconds)...
is sent/received on a topic. Jitter is useful to reduce lookup storms that could occur every auth/acl_cacheseconds if lots of clients connect at the same time (for example after a server restart, all your clients may reconnect immediately and all may cause ACL lookups every acl_cacheseconds)...