Platform administration

• Application servers

   This screen displays a read-only list of servers installed on the platform. This is a list of AOSs deployed on web servers and running on the same database. As described in previous chapters, an AOS hosts MQTT brokers, task and workflow services, and APIs for accessing client applications.

By clicking the actions button for a row in the table, the following context menu

is displayed to give the user the power to enable or disable processing services for a given AOS. This allows loads to be distributed across the platform's various servers, allowing servers to be reserved for workers, servers for jobs, and servers to interact with client applications.

• MQTT Brokers

The MQTT Servers menu, shown in this screenshot, provides access to the list of MQTT brokers installed on each AOS. Clicking the "Generate New" button brings up a screen allowing the administrator to create a new broker and select the server on which it will run. A new port is assigned automatically. For on-premise platforms, the port range is reserved when configuring the AOS in the MQTTEndPoints.json file. (see Configuration d'une installation locale)  .

By clicking on a broker, the detail screen is displayed allowing the administrator to adjust the parameters and options related to the operation of the broker..

Among the modifiable parameters we find:

• Login and Password: The administrator can modify the authentication settings for MQTT clients.
• Whether a newly registered device is allowed to send messages directly to the platform or must be approved first.
• The minimum topic structure the broker can allow.
• The maximum queue processing time.

Next : System administration