Gaurav Log Monitor for Magento 2

A professional-grade, high-performance monitoring engine that transforms chaotic var/log files into a clean, actionable health dashboard for Adobe Commerce.

📖 Why This Module?

In most Magento environments, log files are a "dark hole." They grow to gigabytes, are rarely checked until a site crashes, and contain thousands of repetitive lines that bury the actual root cause of issues.

Gaurav_LogMonitor was built to solve this by providing:

• Proactive Health Checks: Identifies "Silent Killers" like failed background data syncs (ERP/CRM) that don't crash the frontend.
• Operational Efficiency: Stops senior developers from wasting hours "log hunting" through massive text files.
• Server Stability: Scans 10GB+ logs using near-zero RAM, ensuring the monitoring tool never becomes a bottleneck.

🖥️ Preview & UI

1. Unified Error Dashboard

A consolidated, searchable view of all unique errors across every .log file in your system. This grid groups thousands of identical errors into single, manageable records.

2. Smart Alert Configuration

Easily manage your monitoring settings, define custom email recipients, and set alert thresholds.

⚙️ Configuration & Navigation

After installation, you can manage the module and view alerts via the following paths:

Admin Dashboard (The Grid)

Navigate to: System > Log Monitor Alerts This is the central command center where you view, filter, and mass-delete deduplicated error logs.

System Configuration

Navigate to: Stores > Configuration > Gaurav Extensions > Log Monitor Here you can configure:

• Enable/Disable: Master switch for the background scanner.
• Recipient Emails: List of developers to receive hourly summaries.
• Alert Threshold: Minimum occurrences required before an email is triggered.
• Ignore List: Define specific log files (like debug.log) to be skipped.

🏗️ Technical Architecture & Logic Flow

The module follows a highly optimized, four-stage lifecycle:

1. High-Performance Scanning Engine

Standard log viewers crash servers by loading entire files into memory. This engine uses Byte-Offset Tracking:

• State Tracking: Records the exact byte position (last_byte_offset) where the last scan ended.
• Efficient Seek: Uses PHP’s fseek() to jump directly to that byte, reading only newly appended data.

2. Intelligent Deduplication

Every log line is normalized before storage:

• Normalization: Strips timestamps and dynamic variables (IDs, hashes) from log lines.
• MD5 Hashing: Generates a unique hash of the core error string.
• Consolidation: Matches existing hashes to increment the occurrence_count rather than creating duplicates.

3. Automated Cron Lifecycle

• logmonitor_process (Every 5 Mins): The "Watcher" that scans files and populates the dashboard.
• logmonitor_send_alerts (Every Hour): The "Messenger" that batches new critical errors into a single HTML email.

🛠️ Installation & Setup

composer require gauravharsh/module-log-monitor
bin/magento module:enable Gaurav_LogMonitor
bin/magento setup:upgrade
bin/magento setup:di:compile
bin/magento cache:flush