LightStep - We deliver insights that put organizations back in control of their complex software apps.
Zabbix - Track, record, alert and visualize performance and availability of IT resources
Pepperdata - Pepperdata's software runs on existing Hadoop clusters to give operators predictability, capacity, and visibility for their Hadoop jobs.
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.
Honeycomb - Honeycomb is a powerful tool for complex/distributed systems, microservices, and databases.
Prometheus - An open-source systems monitoring and alerting toolkit.