Resolving problem: MQTT clients not connecting to the daemon
Clients are not connecting to the daemon, or the daemon is not connecting to other daemons or to a WebSphere® MQ telemetry channel.
About this task
Trace each MQTT packet sent and received by the daemon.
Procedure
Set the trace_output parameter to
protocol in
the daemon configuration file or send a command to the daemon using
the amqtdd.upd file. See Transfer messages between the IBM® WebSphere MQ Telemetry daemon for devices and IBM WebSphere MQ , for an example of using the amqtdd.upd file.
Using the protocol setting, the daemon prints a message to the console describing each MQTT packet it sends and receives.