doc(Metrics&Alert): 添加监控/告警处理模块README

[acd19ml]

关联issue: # #42

文档更新（架构文档、API文档、升级文档）

监控/告警处理模块（Alerting）设计

[niupilot]

PR Review: Alerting Module Documentation Update

Reviewing the documentation changes for the monitoring/alerting processing module.

Todo List:

• Read the current README.md file to understand the content
• Analyze the git diff to see what specific changes were made
• Review documentation structure and organization
• Check technical accuracy and completeness
• Evaluate consistency with repository standards
• Provide comprehensive review feedback

---

Review Summary

This PR introduces comprehensive documentation for the alerting module design. The documentation is well-structured and covers all essential aspects of the system architecture.

Strengths ✅

Excellent Architecture Design

• Clean Architecture: Proper separation using Hexagonal/Clean architecture with clear domain, usecase, and adapter layers
• Comprehensive Coverage: Documents all major components including data models, APIs, state machines, and integration points
• Well-defined Boundaries: Clear module boundaries with explicit inputs/outputs and responsibilities

Technical Quality

• Database Design: Solid MySQL schema with proper indexing, foreign keys, and data types
• API Design: RESTful endpoints with clear request/response formats and proper HTTP status codes
• State Machine: Well-defined state transitions for issue lifecycle management

Documentation Structure

• Logical Flow: Information is presented in a logical order from goals → architecture → implementation
• Practical Examples: Includes concrete SQL schemas, API examples, and JSON response formats
• Implementation Guidance: Provides clear testing strategies and code organization principles

Areas for Improvement 🔧

Missing Information

1. Error Handling: No mention of error responses or failure scenarios in API documentation
2. Configuration: Missing configuration parameters for the module (database connections, webhook endpoints, etc.)
3. Dependencies: No mention of required external services or libraries
4. Deployment: No deployment or operational considerations

Technical Concerns

1. Security Details:

   • Line 165: "API 走网关鉴权" is too vague - should specify authentication mechanisms
   • Missing rate limiting, input validation, or security headers documentation

2. Performance Considerations:

   • No mention of expected throughput, latency requirements, or scaling considerations
   • JSON column usage in MySQL may have performance implications at scale

3. API Inconsistencies:

   • Line 102: Query parameter start but pagination uses next cursor - should clarify pagination strategy
   • Missing HTTP status codes for error cases

Documentation Style

1. Language Consistency: Mix of Chinese and English (consider standardizing)
2. Missing Timestamps:
   • Line 133: Example timestamp shows "2024-01-03" but other examples use "2025-05-05"
3. Code Examples: Some code blocks could use proper syntax highlighting

Specific Suggestions

1. API Documentation Enhancements (internal/alerting/README.md:100-146)

# Add error responses example:
GET /v1/issues/:issueID
Response (404):
{
  "error": "issue_not_found",
  "message": "Issue with ID 'xxx' not found"
}

2. Security Section Enhancement (internal/alerting/README.md:164-165)

• Specify authentication methods (JWT, API keys, etc.)
• Add rate limiting details
• Include input validation requirements

3. Configuration Section (Missing)

Consider adding a configuration section:

配置参数
- DATABASE_URL: MySQL连接字符串
- WEBHOOK_TIMEOUT: Webhook超时时间(默认30s)
- MAX_AGGREGATION_WINDOW: 聚合时间窗口(默认5分钟)

4. Operational Considerations (Missing)

• Health check endpoints
• Metrics and monitoring
• Log levels and structured logging

Repository Consistency

The documentation follows the repository's pattern of Chinese-language module documentation. However, this README is significantly more comprehensive than other module READMEs in the project, which may indicate either:

1. This module is more complex and warrants detailed documentation ✅
2. Other modules may benefit from similar documentation depth

Conclusion

This is high-quality architectural documentation that demonstrates solid system design principles. The hexagonal architecture approach, comprehensive API design, and thoughtful data modeling show strong technical planning.

Recommendation: APPROVE with suggested enhancements for security details, error handling, and configuration documentation.

The documentation successfully addresses issue #42 and provides a solid foundation for implementation.

---

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[gemini-code-assist]

Summary of Changes

Hello @acd19ml, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

此拉取请求引入了监控/告警处理模块的全面设计文档。该文档旨在为告警系统的核心功能提供清晰的蓝图，包括事件处理、问题管理、自动化响应和数据模型，为未来的开发和协作奠定基础。

Highlights

• 新增模块设计文档: 为监控/告警处理模块（Alerting）新增了详细的README设计文档。
• 核心功能阐述: 文档阐述了告警事件的统一接收、聚合、去重、问题归并及生命周期管理等核心功能。
• 技术细节定义: 详细定义了告警等级计算、自动化/半自动化治愈流程、模块目录结构（遵循六边形/整洁架构）、数据模型（MySQL表结构及示例）、状态机和API接口规范。
• 系统集成与考量: 涵盖了摄入（Ingress）、治愈（Healing）、通知（Notifier）、定时体检（Scheduler）、安全与审计等方面的设计考量。
• 开发实践建议: 包含了Go语言的代码组织建议和测试建议，为后续开发提供了指导。

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[gemini-code-assist]

Code Review

本次 PR 为监控/告警处理模块添加了非常详尽的设计文档，对模块的目标、架构、数据模型和 API 都进行了清晰的阐述，这是一个非常有价值的补充。我的审查意见主要集中在一些设计细节的一致性、完整性和潜在的改进点上，希望能帮助文档更加完善和严谨。

[niupilot]

PR Review: Updated Alerting Module Documentation

Reviewing the updated documentation changes for the monitoring/alerting processing module.

Todo List:

• Read the current README.md file to understand the updated content
• Analyze the git diff to see what specific changes were made from develop branch
• Compare with previous version to identify improvements
• Review documentation structure and technical accuracy
• Check for consistency with repository standards
• Provide comprehensive review feedback

---

Review Summary

This PR transforms a minimal 8-line README into a comprehensive 146-line documentation for the alerting module. This is a significant improvement that provides substantial value for team collaboration and project understanding.

Strengths ✅

Excellent Structure and Organization

• Clear Visual Layout: Great use of emojis and separators (⸻) for section organization
• Logical Flow: Overview → Directory Structure → Database → APIs → Service Modules
• Comprehensive Coverage: Addresses all major aspects of the system architecture

User-Friendly Documentation

• Practical Examples: Real API request/response examples with realistic data
• Clear Objectives: Well-defined goals for automation and AI/human collaboration
• Table Format: Clean database schema presentation using tables

Technical Content Quality

• Complete API Documentation: Both list and detail endpoints with proper JSON examples
• Service Module Breakdown: Clear explanation of each service component and its responsibilities
• Database Design: Proper field definitions with types and constraints

Issues and Improvements Needed 🔧

Critical Issues

1. Inconsistent Field Naming (internal/alerting/README.md:41-58)

   • Line 47: Database shows label (singular) but API examples use labels (plural)
   • Line 56: Database shows issueID but should follow snake_case like issue_id
   • Line 57: createAt should be created_at to match standard naming conventions

2. Missing Critical Database Fields (internal/alerting/README.md:39-49)

   -- Missing important fields from database design:
   resolved_at     # When was the alert resolved?
   source          # Source system (prometheus, grafana, etc.)
   fingerprint     # For deduplication
   extra           # Additional metadata

3. Incomplete Database Schema (internal/alerting/README.md:53-59)

   • Missing id field for comments table
   • Missing author field to track who made the comment
   • No indexes defined for performance

API Documentation Issues

4. Incomplete API Responses (internal/alerting/README.md:69-86)

   • Missing pagination fields (next cursor, total count)
   • No error response examples (404, 400, 500)
   • Missing response status codes

5. API Inconsistencies (internal/alerting/README.md:67)

   • Query parameter uses start=xxxx but doesn't specify what format xxxx should be
   • Missing important endpoints (POST for comments, PUT for status updates)

Technical Concerns

6. Timestamp Format Inconsistency (internal/alerting/README.md:83,110)

   • Line 83: Uses "2025-05-05 11:00:00.0000Z" format
   • Line 110: Uses "2024-01-03T03:00:00Z" format
   • Should standardize on ISO 8601 format

7. Missing Implementation Details

   • No mention of authentication/authorization
   • Missing error handling strategies
   • No performance considerations or scaling notes

Documentation Style Issues

8. Language Inconsistency
   • Title uses English: "Monitoring & Alerting Service"
   • Content mixes Chinese and English inconsistently
   • Consider standardizing language choice

Specific Recommendations

1. Fix Database Schema (internal/alerting/README.md:39-59)

-- Recommended complete schema:
CREATE TABLE alert_issues (
  id VARCHAR(255) PRIMARY KEY,
  state ENUM('Open', 'Closed') NOT NULL,
  level VARCHAR(32) NOT NULL,
  alert_state ENUM('InProcessing', 'AutoRestored', 'Restored') NOT NULL,
  title VARCHAR(255) NOT NULL,
  labels JSON,
  alert_since TIMESTAMP NOT NULL,
  resolved_at TIMESTAMP NULL,
  source VARCHAR(32) NOT NULL,
  fingerprint VARCHAR(128) NOT NULL,
  extra JSON,
  INDEX idx_state_level (state, level),
  INDEX idx_fingerprint (fingerprint)
);

CREATE TABLE alert_issue_comments (
  id BIGINT PRIMARY KEY AUTO_INCREMENT,
  issue_id VARCHAR(255) NOT NULL,
  created_at TIMESTAMP NOT NULL,
  author VARCHAR(64) NOT NULL,
  content TEXT NOT NULL,
  FOREIGN KEY (issue_id) REFERENCES alert_issues(id)
);

2. Complete API Documentation (internal/alerting/README.md:63-115)

// Add missing endpoints:
POST /v1/issues/:issueID/comments
PUT /v1/issues/:issueID/close
PUT /v1/issues/:issueID/reopen

// Add error responses:
{
  "error": "not_found",
  "message": "Issue not found",
  "code": 404
}

3. Add Missing Sections

Consider adding these important sections:

• Configuration: Environment variables and settings
• Authentication: Security and access control
• Error Handling: Common errors and troubleshooting
• Performance: Expected throughput and scaling considerations

Comparison with Repository Standards

This documentation is significantly more comprehensive than other module READMEs in the repository. While this level of detail is excellent for a core module like alerting, it sets a high standard that other modules might benefit from following.

Conclusion

Overall Assessment: GOOD with Important Fixes Needed

This is a substantial improvement over the previous minimal documentation. The structure and content provide excellent value for team collaboration. However, the technical inconsistencies (especially database schema issues) need to be addressed before this can serve as a reliable implementation guide.

Recommendation: Request revisions to fix the database schema inconsistencies and API documentation gaps, then approve.

The documentation successfully provides a solid foundation for the alerting module implementation and addresses the requirements from issue #42.

---

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