mergelog ☆

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Description:
Merges httpd logs from web servers behind round-robin DNS

Type: Formula | Tracked Since: Dec 28, 2025

Links: Homepage | formulae.brew.sh

Category: System utilities

Tags: logs httpd merging networking sysadmin

Install: brew install mergelog

About:
Mergelog is a specialized utility designed to process and combine HTTP access logs from multiple web servers that operate behind a round-robin DNS configuration. It intelligently merges these disparate log files into a single, chronologically sorted stream, effectively reconstructing a unified view of server activity. This allows administrators to analyze traffic patterns and user behavior as if they were served by a single system.

Key Features:

Merges logs from multiple servers into a single, time-ordered stream
Handles logs from round-robin DNS environments accurately
Preserves the original log format for compatibility with standard analysis tools
Efficient processing suitable for large log files

Use Cases:

Generating unified traffic reports for a load-balanced web server farm
Analyzing user session paths across multiple backend servers
Auditing access patterns in a distributed hosting environment

Alternatives:

logstash – A more comprehensive data processing pipeline, but significantly more complex to set up and manage for this specific task.
syslog-ng – A powerful logging daemon that can forward and store logs, but is not specifically designed for merging time-sorted httpd logs from the start.

Version History

Detected	Version	Rev	Change	Commit
Sep 15, 2025 12:52am		0	VERSION_BUMP	e1ca404e
Nov 25, 2022 1:54pm		0	VERSION_BUMP	5b8d9b40