homer eleven

100% Opensource Telecom Observability since 2011

homer is the all-in-one HEP capture and API server monolith powering Homer 11.x data lake

Features

• All-in-One Application (Writer, Reader, Coordinator, Compactor, API)
• Modern Codebase in golang for X64/ARM64 on Linux/MacOS
• Powered by DuckDB 1.5 and Apache Arrow/IPC/Parquet
• Datalake design based on DuckLake Catalog and Local/Object Storage
• End-to-End Columnar OTLP Design w/ on-demand query execution
• Linear Scaling to query over shared Object Storage catalog/pool
• Flexible Schema support for growing problems and protocols
• Backwards compatible with all HEPv3 Agents
• Easy to maintain, operate and scale (down to zero!)
• Cloud Native Design for K8s and standard deployments
• Built-In User Interface for Humans
• MCP support and LLM/Agent friendly design (steal our boring jobs)

Architecture

Homer uses a modular architecture with four main components:

┌─────────────────────────────────────────────────────────────────────────────┐
│                           Homer Core                                        │
│                                                                             │
│  ┌─────────────┐   ┌─────────────┐   ┌──────────┐   ┌─────────────────┐     │
│  │   Ingest    │   │   Storage   │   │   Node   │   │   Coordinator   │     │
│  │  (HEP recv) │──▶│  (DuckLake) │──▶│ gRPC/HTTP│──▶│    (REST API)   │     │
│  └─────────────┘   └─────────────┘   └──────────┘   └─────────────────┘     │
│   UDP/TCP/HTTP      Parquet+S3     Airport :50051     HTTP :8080            │
│                                    FlightSQL :50055  (opt. proxy :32010)    │
└─────────────────────────────────────────────────────────────────────────────┘

Modules

Quick Start

Install Options

• Download a release and install the homer package on your OS/arch
• Use the official docker builds and compose examples
• Build your own release locally (keep reading)

All-in-One Deployment

{
  "ingest": {
    "enable": true,
    "udp": { "enable": true, "port": 9060 },
    "tcp": { "enable": true, "port": 9061 },
    "http": { "enable": true, "port": 9080 }
  },
  "storage": {
    "enable": true,
    "ducklake": {
      "catalog_path": "/data/homer/homer_catalog.sqlite",
      "data_path": "/data/homer/parquet"
    }
  },
  "node": {
    "enable": true,
    "flight_server": { "port": 50051 }
  },
  "coordinator": {
    "enable": true,
    "http_server": { "port": 8080 }
  }
}

For more storage options consult the available STORAGE POLICIES

Build & Run

# Build
make

# Run as server (default mode)
./homer --config-path /etc/homer/homer.json

# With debug logging
./homer --config-path /etc/homer/homer.json --log-level debug

Subcommands

Homer uses a subcommand-based CLI. Running homer without arguments starts the server.

homer                         Run the server (default)
homer search [flags]          Search Homer data via coordinator API
homer cli [flags]             Interactive DuckLake SQL shell
homer system [flags]          System operations (compaction, extensions, reload)
homer wizard [flags]          Interactive config generator wizard
homer mcp [flags]             Start MCP stdio server
homer version                 Show version
homer help                    Show full help with all flags

Server Mode (default)

homer --config-path /etc/homer/homer.json
homer --config-path /etc/homer/homer.json --log-level debug --syslog-disable

Search (via coordinator API)

Search Homer data from the command line with table, vertical, CSV, JSON, chart, call flow, or PCAP output (SIP only; use --format pcap with -o / --output).

# Basic SIP search (last hour)
homer search --host 10.0.0.1:8081 --user admin --pass secret

# Search INVITE messages with call flow diagram
homer search --host 10.0.0.1:8081 --method INVITE --format callflow

# Export SIP messages to a pcap file (same framing as API /transactions/export/pcap)
homer search --host 10.0.0.1:8081 --call-id "abc123@host" --format pcap -o /tmp/call.pcap

# Search by Call-ID
homer search --host 10.0.0.1:8081 --call-id "abc123@host" --format vertical

# Post-filter: only INVITEs and BYEs, exclude provisional responses
homer search --host 10.0.0.1:8081 --grep "INVITE,BYE" --exclude "100,183"

# Interactive TUI mode
homer search --host 10.0.0.1:8081 --interactive

See docs/SEARCH.md for full documentation and examples.

CLI (DuckLake SQL Shell)

Interactive SQL shell for direct DuckLake queries:

# Start interactive CLI
homer cli --config-path /etc/homer/homer.json

# Execute single query and exit
homer cli --config-path /etc/homer/homer.json --query "SELECT COUNT(*) FROM homer_lake.main.hep_proto_1_call"

System Operations

# Run full compaction
homer system --config-path /etc/homer/homer.json --compaction-force

# Install DuckDB extensions
homer system --config-path /etc/homer/homer.json --install-extensions

# Show DuckDB version
homer system --config-path /etc/homer/homer.json --duckdb-version

# Generate example config
homer system --generate-example-config > homer.json

# Reload running process
homer system --reload

Wizard (Config Generator)

Interactive wizard that generates a complete homer.json config:

# Interactive TUI wizard
homer wizard

# Non-interactive: generate config for a specific deployment profile
homer wizard --profile all-in-one --output homer.json
homer wizard --profile writer --output homer-writer.json
homer wizard --profile coordinator --output homer-coordinator.json
homer wizard --profile edge --output homer-edge.json
homer wizard --profile node --output homer-node.json

Configuration Examples

See the examples/ directory:

Documentation

Published docs (GitHub Pages): https://sipcapture.github.io/homer/ — built from docs/ via MkDocs on push to homer11. Enable Settings → Pages → Build and deployment: GitHub Actions once after the first workflow run.

python3 -m venv .venv-docs && .venv-docs/bin/pip install -r docs-requirements.txt
.venv-docs/bin/mkdocs serve   # http://127.0.0.1:8000

• Search CLI - Search from the command line (examples, formats, call flow)
• Config Wizard - Interactive config generator (TUI + presets)
• Ingest performance tuning - multicore, DuckLake batch size, Prometheus flush interval; scripts/profile_ingest_load.sh / make profile-ingest for repeatable CPU profiles
• Coordinator Module - REST API gateway
• MCP UI Guide - Natural-language query assistant (configuration + UI usage)
• Node Module - FlightSQL data server
• Storage Architecture - DuckLake storage
• Storage Policies - Tiered storage (hot/cold)
• Compaction Setup - File compaction

License

Released under the AGPL-3.0 License

Copyright (C) 2025 QXIP BV