HAProxy is open source software that provides a high availability load balancer and proxy server for TCP and HTTP-based applications that spreads requests across multiple servers.
The Sumo Logic App for HAProxy is a unified logs and metrics app that helps you monitor the availability, performance, and health of your HAProxy cluster. Preconfigured dashboards provide insights into active servers, visitor locations, sessions, errors, response time, and throughput.
The HAProxy logs are generated in files as configured in the configuration file /etc/haproxy/haproxy.cfg. For more details on HAProxy logs, see this link.
The Sumo Logic App for HAProxy supports metrics generated by the HAProxy plugin for Telegraf. The app assumes prometheus format Metrics.