1 What is Trento? #
Trento is the official version of the Trento community project. It is a comprehensive monitoring solution consisting of two main components: the Trento Server and the Trento Agent. Trento provides the following functionality and features:
A user-friendly reactive Web interface for SAP Basis administrators.
Automated discovery of Pacemaker clusters using SAPHanaSR classic or angi as well as different fencing mechanisms, including diskless SBD.
Automated discovery of SAP systems running on ABAP or JAVA stacks and HANA databases.
Awareness of maintenance situations in a Pacemaker cluster at cluster, node, or resource level.
Configuration validation for SAP HANA Scale-Up Performance-optimized, SAP HANA Scale-out and ASCS/ERS clusters deployed on Azure, AWS, GCP or on-premises bare metal platforms, including KVM and Nutanix.
Useful information that offers insights about the execution of configuration checks.
Delivery of configuration checks decoupled from core functionality.
Email alerting for critical events in the monitored landscape.
Integration of saptune into the console and specific configuration checks at host and cluster levels.
Information about relevant patches and upgradable packages for registered hosts via integration with SUSE Multi-Linux Manager.
Monitoring of CPU and memory usage at the host level through basic integration with Prometheus.
API-based architecture to facilitate integration with other monitoring tools.
Rotating API key to protect communication from the Trento Agent to the Trento Server.
Housekeeping capabilities.
The Trento Server is an independent, distributed system designed to run on a Kubernetes cluster or as a regular systemd stack. The Trento Server provides a Web front-end for user interaction. The Trento Server consists of the following components:
The web component that acts as a control plane responsible for internal and external communications as well as rendering the UI.
The checks engine named wanda that orchestrates the execution of configuration checks.
A PostgreSQL database for data persistence.
The RabbitMQ message broker for communicating between the checks engine and the agents.
A Prometheus instance that retrieves the metrics collected by the Prometheus node exporter in the registered hosts.
The Trento Agent is a single background process (trento-agent) running on each monitored host of the SAP infrastructure.
See Figure 1.1, “Architectural overview” for additional details.
