Use the NATS Monitoring Dashboard in ITSI

The NATS Monitoring dashboard provides information to help you troubleshoot any issues with the NATS queue. NATS is an efficient messaging system that runs as a server in place of the previously used ITSI Rules Engine real-time search, and ultimately reduces latency in processing notable events. Use this dashboard to verify that the NATS queue is working as expected. You can find this dashboard as a tab on the Event Analytics Monitoring dashboard.

Dashboard panels

Panel	Description
Rules Engine settings	Rules Engine processes events in two modes: using either a real-time search (custom search mode), or a specialized event queueing system (queue mode). Queue mode is the default mode and indicates that the NATS queue is working as expected.
Server information	Characteristics of active hosts using the Rules Engine.
Jetstream Info	NATS has a built-in persistence engine called Jetstream, which ensures that messages are stored even when consumers are offline.
OS metrics	Describes the current CPU load percentage and memory usage of the Jetstream component. The Jetstream will increase as these two metrics increase.
NATS message volume	Describes the count of messages received over time. For example, the graph displays that 100 messages are received each minute after 5:22pm. Pending messages are messages that have not been processed. The number should be 0 or very small. Larger numbers indicates errors or connection issues. Check the error logs for more information.
Client metrics	Describes various characteristics of clients connected to and receiving messages from the NATS queue. Connections refer to the client connections established between applications, and a NATS server (or cluster of servers). These connections allow applications to publish messages. Consumers refer to [the services that receive NATS messages?] In normal conditions, the consumer count should be 1. Subscriptions refer to [?]
Server error logs	Describes errors related to the NATS server.
Client error logs	Describes errors related to the clients connected to NATS.
NATS Rules Engine error logs	Describes errors related to Rules Engine.