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Flowgger is a fast, simple and lightweight data collector written in Rust.

It reads log entries over a given protocol, extracts them, decodes them using a given format, re-encodes them into a different format, and asynchronously pushes the result into a remote data store.

Flowgger is designed to be:

• Paranoid: it carefully validates input data to prevent injection of malformed/incomplete records down the chain.
• Safe: written in Rust, without any unsafe code.
• Fast: even though messages are systematically parsed and validated, Flowgger is orders of magnitude faster than Logstash and Fluentd.
• Standalone: it comes as a single executable file, and doesn't require a JVM.

Flowgger supports common input types: stdin, UDP, TCP, TLS and Redis, as well as multiple input formats: JSON (GELF), LTSV, Cap'n Proto and RFC5424. Normalized messages can be sent to Kafka, Graylog, to downstream Flowgger servers, or load balanced to other log collectors for further processing.

Table of contents

• Installation
• Configuration
• Input types
• Message splitters
• Decoders
• Buffering
• Encoders
• Mergers
• Output types