gollum ☆

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Description:
Go n:m message multiplexer

Type: Formula | Tracked Since: Dec 28, 2025

Links: Homepage | formulae.brew.sh

Category: Devops

Tags: log-aggregator streaming multiplexer devops golang

Install: brew install gollum

About:
Gollum is a high-performance, stateless message multiplexer written in Go. It accepts streams of messages from various inputs like files, network sockets, or Kafka topics, and routes them to multiple consumers. Its main value proposition is providing a lightweight, flexible, and resource-efficient way to aggregate, filter, and distribute log data and event streams.

Key Features:

High-throughput, low-latency message processing
Extensive plugin support for inputs, outputs, and formatters
Stateless architecture ensures minimal resource footprint
Flexible routing and message filtering using a simple configuration

Use Cases:

Aggregating logs from multiple microservices into a central system like Elasticsearch
Routing application events to different monitoring or analytics platforms
Buffering and relaying data between systems with different throughput requirements

Alternatives:

Fluentd – Fluentd is a CNCF project with a massive plugin ecosystem, while Gollum is a single Go binary focused on performance and low resource usage.
Vector – Vector is also written in Rust/Go and focuses on high performance, but Gollum offers a simpler configuration for straightforward multiplexing tasks.

Version History

Detected	Version	Rev	Change	Commit
Sep 14, 2024 8:31pm		0	VERSION_BUMP	098a85bc