Telegraf is described as 'metric collection daemon that can collect metrics from a wide array of inputs and write them into a wide array of outputs. It is plugin-driven for both collection and output of data so it is easily extendable'. There are seven alternatives to Telegraf for a variety of platforms, including Linux, Mac, BSD, Raspbian and Windows. The best alternative is Logstash, which is both free and Open Source. Other great apps like Telegraf are Fluentd (Free, Open Source), collectd (Free, Open Source), HostedMetrics (Paid) and Vector by Timber (Free, Open Source).
Use your favorite StatsD lib to generate custom metrics from your code and systems. We store them in your choice of metrics platform. As you'd expect, we provide Grafana for dashboards, and you also have the ability to configure alerts as needed.
Vector is a high-performance observability data platform that puts organizations in control of their observability data. Collect, transform, and route all your logs, metrics, and traces to any vendors you want.
Fluent Bit is an open source and multi-platform Log Forwarder which allows you to collect data/logs from different sources, unify and send them to multiple destinations. It's fully compatible with Docker and Kubernetes environments.
A network daemon that runs on the Node.js platform and listens for statistics, like counters and timers, sent over UDP or TCP and sends aggregates to one or more pluggable backend services (e.g., Graphite).