runit - runit is a cross-platform Unix init scheme with service supervision, a replacement for sysvinit...
Datadog - See metrics from all of your apps, tools & services in one place with Datadog's cloud monitoring as a service solution. Try it for free.
sysvinit - Savannah is a central point for development, distribution and maintenance of free software, both GNU and non-GNU.
AppDynamics - Get real-time insight from your apps using Application Performance Management—how they’re being used, how they’re performing, where they need help.
Supervisor - Supervisor is a client/server system that allows its users to monitor and control a number of...
Zabbix - Track, record, alert and visualize performance and availability of IT resources