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
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@@ -66,6 +66,20 @@ func All() []Migration {
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return executeDialectSQL(db, "0003_billing_settings")
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},
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},
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{
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Version: "0004_metric_aggregate_unique",
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Description: "指标聚合表唯一约束(upsert 生效)",
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Apply: func(db *gorm.DB) error {
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return executeDialectSQL(db, "0004_metric_aggregate_unique")
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},
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},
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{
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Version: "0005_agent_settings",
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Description: "Agent 采集策略(可下发频率)",
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Apply: func(db *gorm.DB) error {
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return executeDialectSQL(db, "0005_agent_settings")
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},
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},
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}
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}
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