Real-time performance monitoring, done right! https://www.netdata.cloud

netdata

The Prometheus monitoring system and time series database.

prometheus

Node.js Production Process Manager with a built-in Load Balancer.

Create agents that monitor and act on your behalf.  Your agents are standing by!

huginn

The tool for beautiful monitoring and metric analytics & dashboards for Graphite, InfluxDB & Prometheus & More

grafana

Sentry is cross-platform application monitoring, with a focus on error reporting.

sentry

Glances an Eye on your system. A top/htop alternative for GNU/Linux, BSD, Mac OS and Windows operating systems.

glances

SQL powered operating system instrumentation, monitoring, and analytics.

osquery

A full-featured App (iOS & Android) development assistant. You deserve it.  简称 "DoKit" 。一款功能齐全的客户端（ iOS 、Android、微信小程序 ）研发助手，你值得拥有。https://www.dokit.cn/

DoraemonKit

Scalable datastore for metrics, events, and real-time analytics

influxdb

CAT 作为服务端项目基础组件，提供了 Java, C/C++, Node.js, Python, Go 等多语言客户端，已经在美团点评的基础架构中间件框架（MVC框架，RPC框架，数据库框架，缓存框架等，消息队列，配置系统等）深度集成，为美团点评各业务线提供系统丰富的性能指标、健康状况、实时告警等。

The plugin-driven server agent for collecting & reporting metrics.

telegraf

An open-source big data platform designed and optimized for the Internet of Things (IoT).

TDengine

GoAccess is a real-time web log analyzer and interactive viewer that runs in a terminal in *nix systems or through your browser.

goaccess

linux-dash

ctop

APM, (Application Performance Management) tool for large-scale distributed systems. 