mmustafaydogan/module-log-viewer

There is no license information available for the latest version (dev-main) of this package.

Real-time log viewer for Magento 2

dev-main 2025-10-07 19:20 UTC

Requires

• php: ~8.1.0|~8.2.0|~8.3.0
• magento/framework: *

Unknown License

README

Real-time log monitoring and analysis tool for Magento 2 admin panel.

Overview

In enterprise environments, comprehensive log analysis and monitoring solutions like New Relic, Datadog, Splunk, ELK Stack (Elasticsearch, Logstash, Kibana), and Sentry are essential for tracking application performance, errors, and system health. These powerful platforms provide deep insights, real-time alerting, and advanced analytics capabilities. However, there are many real-world cases where access to such tools is limited, delayed, or entirely unavailable — especially during urgent debugging or in cost-sensitive environments.

Magento 2 Log Viewer bridges this gap by providing a lightweight, built-in solution for real-time log monitoring directly within the Magento admin panel. While it doesn't replace comprehensive monitoring platforms, it serves as an invaluable complementary tool for immediate log analysis and debugging.

Features

🎯 Core Capabilities

• Real-time Log Streaming - View log updates as they happen with auto-refresh functionality
• Multiple Log File Support - Switch between different Magento log files (system.log, exception.log, debug.log, etc.)
• Customizable Refresh Intervals - Choose from 5 seconds to 5 minutes for auto-refresh
• Error Filtering - Focus on critical issues with error-only view mode
• Adjustable Line Limits - Display 50 to 500 lines for optimal performance
• Auto-scroll to Bottom - Always see the latest log entries first
• Manual Refresh - Update logs on-demand with a single click
• Clear Display - Clean the log view without affecting actual log files

Installation

Via Composer

composer require mmustafaydogan/module-log-viewer:dev-main
php bin/magento module:enable Mustafa_LogViewer
php bin/magento setup:upgrade
php bin/magento setup:di:compile
php bin/magento cache:flush

Configuration

Access Control

The module respects Magento's ACL (Access Control List) system. To grant access:

1. Navigate to System > User Roles
2. Select the role you want to configure
3. In Role Resources, expand Mustafa > Log Viewer
4. Check Access Log Viewer
5. Save the role

Usage

Accessing the Log Viewer

1. Log in to Magento Admin Panel
2. Navigate to System > Tools > Log Viewer
3. The log viewer interface will load with the latest 100 log entries

Basic Operations

Viewing Logs

• Select desired log file from Log File dropdown
• Adjust number of lines with Lines dropdown (50, 100, 200, 500)
• Click Refresh button to manually update the display

Auto-Refresh Mode

1. Select refresh interval from Auto Refresh Time dropdown:

   • 5 seconds (real-time monitoring)
   • 15 seconds (balanced)
   • 30 seconds (moderate)
   • 1 minute (light monitoring)
   • 5 minutes (periodic checks)

2. Click Auto Refresh: OFF button to enable

3. Button changes to Auto Refresh: ON with primary color

4. Logs will update automatically at the selected interval

5. Change refresh interval on-the-fly without stopping auto-refresh

6. Click Auto Refresh: ON to disable automatic updates

Error-Only Mode

• Check Errors Only checkbox to filter:
  • ERROR level logs
  • CRITICAL level logs
  • Exceptions
  • Fatal errors

Clear Display

• Click Clear Display to remove current view
• Note: This only clears the interface, not the actual log files

Use Cases

Development Debugging

Scenario: Testing a new payment integration
1. Enable Auto Refresh (5 seconds)
2. Check "Errors Only"
3. Perform test transaction
4. Watch for real-time errors or exceptions

Production Monitoring

Scenario: Monitoring critical operation during deployment
1. Select system.log
2. Set refresh to 15 seconds
3. Enable Auto Refresh
4. Monitor for any unexpected errors

Comparison with Enterprise Solutions

Feature	Log Viewer	New Relic	Datadog	Splunk	ELK Stack
Real-time Monitoring	✅	✅	✅	✅	✅
Historical Analysis	❌	✅	✅	✅	✅
Alerting	❌	✅	✅	✅	✅
Log Aggregation	❌	✅	✅	✅	✅
Custom Dashboards	❌	✅	✅	✅	✅
APM Integration	❌	✅	✅	✅	✅
Cost	Free	$$$	$$$	$$$$	$$
Setup Complexity	Low	Medium	Medium	High	High
Admin Panel Access	✅	❌	❌	❌	❌
No External Dependency	✅	❌	❌	❌	❌
Immediate Availability	✅	❌	❌	❌	❌

Requirements

• Magento 2.4.x or higher
• PHP 8.1, 8.2, or 8.3
• Read permissions on var/log/ directory
• Admin panel access with appropriate ACL permissions

Compatibility

• ✅ Magento Open Source 2.4.x
• ✅ Adobe Commerce 2.4.x
• ✅ Cloud Edition (with proper file system access)
• ✅ Multi-store setups
• ✅ Production, Staging, and Development modes

Author

Mustafa.Aydoğan

• Module: mmustafaydogan/module-log-viewer
• Version: 1.0.0

Acknowledgments

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This module is designed for convenience and immediate access, not as a replacement for proper enterprise monitoring solutions. For production environments, always maintain comprehensive logging infrastructure with tools like New Relic, Datadog, or ELK Stack, and use this module as a supplementary debugging tool.