Files
aiops/backend/migrations/0005_agent_settings.mysql.sql
Logan.Li 59320aa410 perf: 修复 Agent 校验 CPU 热点并实现指标分层聚合与频率下发
CPU 根因:每个 Agent 请求都做一次 bcrypt 校验(实测 72ms),
30 台主机 18 req/s × 72ms ≈ 1.35 核,实测容器 CPU 135%。

- agentauth: 校验结果按 Token 哈希缓存(TTL 5min,轮换即失效),
  last_used_at 写入按 60s 节流。实测 CPU 135% → 1.6%,请求延迟 103ms → 1.6ms
- metricagg: 新增后台逐级降采样聚合 raw→1m/5m→1h→6h/1d,取代前端手动触发
- metrics_aggregate: 补 uniq_metric_agg 唯一索引(原 idx_agg 非唯一导致 upsert 插重复行)
- agent 合并配置接口 GET /agent/config:一次返回任务+探针+端口策略+频率,
  配置轮询 5s→30s;服务端可下发 report_interval,Agent 热更新 ticker 无需重装
- retention: agent_reports 保留期 7d→1d(趋势由聚合表承担)
- redis: 增加 maxmemory 512mb + volatile-lru
- fix(upgrade): 升级脚本改为 fail-fast,修复下载失败仍报 UPGRADE_OK 的静默谎报

// Logan.Li
2026-09-14 08:23:31 +00:00

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-- Agent 采集策略:hostname 为空串代表全局默认,非空为按主机覆盖。
-- 平台可通过此表下发 report_interval / config_poll_interval,Agent 热更新无需重装。 // Logan.Li
CREATE TABLE IF NOT EXISTS monitor_agent_settings (
id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY,
hostname VARCHAR(255) NOT NULL DEFAULT '',
report_interval INT NOT NULL DEFAULT 10,
config_poll_interval INT NOT NULL DEFAULT 30,
updated_by VARCHAR(128) NOT NULL DEFAULT '',
created_at DATETIME NOT NULL,
updated_at DATETIME NOT NULL,
UNIQUE KEY uniq_agent_settings_hostname (hostname)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;