Redexporter

A Redmine plugin that exposes comprehensive metrics to Prometheus for monitoring.

Installation

cd redmine/plugins
git clone https://github.com/noshutdown-ru/redexporter.git
cd ../
bundle install --without development test
rake redmine:plugins:migrate RAILS_ENV=production

Configuration

1. Go to Administration → Redexporter
2. Enable the plugin
3. Set a Prometheus token
4. Access metrics at: /redexporter/metrics?token=YOUR_TOKEN

Metrics

System Metrics

• load_average_one_minute - System load average for the last minute
• cpu_usage - CPU usage in percent
• disk_total_bytes - Total filesystem capacity in bytes
• disk_used_bytes - Used filesystem space in bytes
• disk_free_bytes - Free filesystem space in bytes

Ruby/Rails Metrics

• ruby_process_memory_bytes - Process memory usage (RSS) in bytes
• ruby_threads_count - Number of active Ruby threads
• ruby_gc_collections - Total garbage collection cycles
• ruby_heap_allocated_pages - Allocated heap pages
• ruby_heap_available_slots - Available heap slots
• ruby_live_objects - Number of live Ruby objects in memory

Redmine Core Metrics

• redmine_projects_count - Total number of projects
• redmine_files_bytes - Total size of files folder in bytes
• redmine_sessions_count - Active user sessions

Issues Metrics (Multi-dimensional)

redmine_issues{project="...",issue_type="...",status="...",priority="..."} - Issues count by project, type, status, and priority

Time Tracking Metrics

• redmine_time_tracked_total_hours - Total hours tracked across all issues
• redmine_time_tracked_by_user_hours{user="..."} - Hours tracked per user

Users Metrics (Multi-dimensional)

• redmine_users{status="...",role="...",group="..."} - Users count by status, role, and group
• redmine_users_total - Total user count

User statuses:

• active - Active users
• inactive - No login in 30+ days
• registered - Registered but not yet active
• locked - Locked accounts

Performance Metrics

• redmine_average_request_latency_seconds - Average HTTP request latency
• redmine_max_request_latency_seconds - Maximum HTTP request latency
• redmine_request_count - Total HTTP requests tracked