gitdataai/docs/metrics.md
ZhenYi a4dd25304c docs: add monitoring metrics operations document
Covers: endpoints,指标列表, Prometheus scrape 配置,
K8s probe YAML, Alertmanager 告警规则示例
2026-04-26 00:10:45 +08:00

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监控指标文档

概览

本项目为以下服务暴露 Prometheus 指标:

服务 端点 端口 类型
app (主站) GET /metrics 8080 actix-web
gitserver GET :8021/health 8021 actix-web
git-hook GET :8083/metrics 8083 hyper (内置)
email-worker GET :8084/metrics 8084 hyper (内置)

采集配置

Prometheus scrape 配置

scrape_configs:
  - job_name: 'gitdata-app'
    static_configs:
      - targets: ['app:8080']
    metrics_path: '/metrics'

  - job_name: 'gitdata-gitserver'
    static_configs:
      - targets: ['gitserver:8021']
    metrics_path: '/metrics'

  - job_name: 'gitdata-git-hook'
    static_configs:
      - targets: ['git-hook:8083']
    metrics_path: '/metrics'

  - job_name: 'gitdata-email-worker'
    static_configs:
      - targets: ['email-worker:8084']
    metrics_path: '/metrics'

健康检查端点

gitserver

  • 端点: GET /health
  • 端口: 8021
  • 返回:
    { "status": "ok", "db": "ok", "cache": "ok" }
    
    503 当 db/cache 任一不可用

git-hook

  • 端点: GET /health
  • 端口: 8083
  • 返回: 同上

email-worker

  • 端点: GET /health
  • 端口: 8084
  • 返回: 同上

指标列表

git-hook 指标 (/metrics, port 8083)

指标名 类型 标签 说明
hook_tasks_total Counter task_type 各类型任务总执行次数
hook_tasks_success_total Counter task_type 成功完成的任务数
hook_tasks_failed_total Counter task_type 失败的任务数 (不含重试)
hook_tasks_locked_total Counter 仓库被其他 worker 锁定,重新入队的次数
hook_tasks_retried_total Counter 触发重试的次数
hook_tasks_exhausted_total Counter 重试耗尽后被丢弃的任务数
hook_sync_branches_changed_total Counter 同步时产生的分支变更总数
hook_sync_tags_changed_total Counter 同步时产生的标签变更总数

任务类型 (task_type):

  • Sync — 完整同步 (refs + commits + tags + LFS + fsck + gc + skills)
  • Fsck — 仅校验仓库完整性
  • Gc — 仅垃圾回收

使用示例:

# 任务成功率
hook_tasks_success_total / hook_tasks_total

# 失败率 (按类型)
rate(hook_tasks_failed_total{task_type="Sync"}[5m])

# 仓库锁定频率
rate(hook_tasks_locked_total[15m])

email-worker 指标 (/metrics, port 8084)

指标名 类型 标签 说明
email_queued_total Counter 写入 Redis Stream 的邮件总数 (生产端)
email_consumed_total Counter 从队列消费的邮件总数 (每批次)
email_batch_size Counter 消费批次大小累计值
email_validation_skipped_total Counter 收件人地址校验失败被跳过的邮件数
email_build_errors_total Counter 邮件消息构建失败的次数
email_send_attempts_total Counter SMTP 发送尝试总次数 (含重试)
email_sent_total Counter 成功发送的邮件数
email_send_failures_total Counter 经 3 次重试后最终失败的邮件数

使用示例:

# 邮件发送成功率
email_sent_total / (email_sent_total + email_send_failures_total)

# 队列积压率
rate(email_consumed_total[5m]) / rate(email_queued_total[5m])

# 校验失败率
rate(email_validation_skipped_total[5m]) / rate(email_queued_total[5m])

app / gitserver 指标 (/metrics)

observability crate 导出,包含以下通用指标:

指标名 类型 说明
ai_calls_total Counter AI 对话调用总次数
ai_calls_success Counter AI 调用成功次数
ai_calls_failure Counter AI 调用失败次数
ai_input_tokens_total Counter 累计输入 token 数
ai_output_tokens_total Counter 累计输出 token 数
ai_function_calls_total Counter AI function/tool 调用次数
http_requests_total Counter HTTP 请求总数
http_request_duration_ms_total Counter HTTP 请求累计耗时 (ms)
http_requests_by_status_class Gauge 按状态码分类的请求数 (2xx, 4xx, 5xx)

Kubernetes 探针配置

gitserver

livenessProbe:
  httpGet:
    path: /health
    port: 8021
  initialDelaySeconds: 5
  periodSeconds: 10
  timeoutSeconds: 3
  failureThreshold: 3

readinessProbe:
  httpGet:
    path: /health
    port: 8021
  initialDelaySeconds: 5
  periodSeconds: 5
  timeoutSeconds: 3
  failureThreshold: 3

git-hook

livenessProbe:
  httpGet:
    path: /health
    port: 8083
  initialDelaySeconds: 10
  periodSeconds: 15
  timeoutSeconds: 5
  failureThreshold: 3

readinessProbe:
  httpGet:
    path: /health
    port: 8083
  initialDelaySeconds: 5
  periodSeconds: 10
  timeoutSeconds: 3
  failureThreshold: 3

email-worker

livenessProbe:
  httpGet:
    path: /health
    port: 8084
  initialDelaySeconds: 10
  periodSeconds: 30
  timeoutSeconds: 5
  failureThreshold: 3

readinessProbe:
  httpGet:
    path: /health
    port: 8084
  initialDelaySeconds: 5
  periodSeconds: 15
  timeoutSeconds: 3
  failureThreshold: 3

告警规则示例 (Alertmanager / Grafana)

# Git Hook Worker Down
- alert: GitHookDown
  expr: up{job="gitdata-git-hook"} == 0
  for: 1m
  labels:
    severity: critical
  annotations:
    summary: "Git Hook worker 无法访问"

# Git Hook 任务失败率过高
- alert: GitHookHighFailureRate
  expr: |
    rate(hook_tasks_failed_total[5m])
    / rate(hook_tasks_total[5m]) > 0.1    
  for: 5m
  labels:
    severity: warning
  annotations:
    summary: "Git Hook 任务失败率超过 10%"

# Email Worker Down
- alert: EmailWorkerDown
  expr: up{job="gitdata-email-worker"} == 0
  for: 1m
  labels:
    severity: critical
  annotations:
    summary: "Email Worker 无法访问"

# 邮件发送失败率过高
- alert: EmailHighFailureRate
  expr: |
    rate(email_send_failures_total[5m])
    / (rate(email_sent_total[5m]) + rate(email_send_failures_total[5m])) > 0.05    
  for: 10m
  labels:
    severity: warning
  annotations:
    summary: "邮件发送失败率超过 5%"

Sitemap 服务端点

端点 说明
GET /sitemap.xml sitemapindex引用所有子 sitemap
GET /sidemap/static 固定页面 (首页、auth、营销页)
GET /sidemap/users 公开用户页面
GET /sidemap/projects 公开项目页面
GET /sidemap/repos 公开仓库页面
GET /robots.txt robots.txt声明 Sitemap 位置

用户/项目/仓库 sitemap 数据通过 Redis 缓存 (8h TTL)robots.txt 中的 Sitemap URL 动态读取 APP_DOMAIN_URL 环境变量并强制使用 https:// 前缀。