# README

file.d

Overview

file.d is a blazing fast tool for building data pipelines: read, process, and output events. Primarily developed to read from files, but also supports numerous input/action/output plugins.

⚠ Although we use it in production, it still isn't v1.0.0. Please, test your pipelines carefully on dev/stage environments.

Contributing

file.d is an open-source project and contributions are very welcome! Please make sure to read our contributing guide before creating an issue and opening a PR!

Motivation

Well, we already have several similar tools: vector, filebeat, logstash, fluend-d, fluent-bit, etc.

Performance tests state that best ones achieve a throughput of roughly 100MB/sec. Guys, it's 2023 now. HDDs and NICs can handle the throughput of a few GB/sec and CPUs processes dozens of GB/sec. Are you sure 100MB/sec is what we deserve? Are you sure it is fast?

Main features

Fast: more than 10x faster compared to similar tools
Predictable: it uses pooling, so memory consumption is limited
Reliable: doesn't lose data due to commitment mechanism
Container / cloud / kubernetes native
Simply configurable with YAML
Prometheus-friendly: transform your events into metrics on any pipeline stage
Vault-friendly: store sensitive info and get it for any pipeline parameter
Well-tested and used in production to collect logs from Kubernetes cluster with 3000+ total CPU cores