feat(alerts,logs): A 方案—告警窗口 15m→5m 消重复扫描;数据源可编辑/删除且删后不被自动重建
=== 1. 告警窗口 15m → 5m(阈值同比例 1/3)===
背景:检查间隔已改 5 分钟,但规则窗口仍是 15 分钟 ——
同一个 15 分钟窗口每 5 分钟被完整重扫一遍,等于 3 倍重复扫描。
在 370GB/天、全命名空间 selector 下,这是 Loki CPU 的最大稳态来源。
FATAL 10 → 4 窗口 5m
Go panic 10 → 4 窗口 5m
JVM OOM 5 → 2 窗口 5m
StackOverflow 5 → 2 窗口 5m
应用错误激增 100000 → 35000 窗口 5m(改名 error > 3.5万)
ingress 5xx 2000 → 700 窗口 5m
ingress 4xx 20000 → 7000 窗口 5m
DB 连接失败 1000 → 350 窗口 5m
阈值按 1/3 缩放是必须的:窗口缩短 3 倍后,同样的流量在 5 分钟内只有
1/3 的条数,阈值不动就永远打不到了。
迁移 v10→v11 只改"窗口仍是 15 且名字匹配内置规则"的项,用户手调的不动。
=== 2. 数据源支持编辑/删除(含托管源)===
原来前后端都把托管源锁死:
- 前端 `!managed &&` 直接不渲染编辑/删除按钮
- 后端 DeleteSource 返回「平台部署的数据源随部署管理,请先删除对应部署」
用户的诉求是"数据源必须能编辑和删除",且确实有场景(不想让某个源出现在
查询下拉里、想改认证头)。
=== 3. 修「删了又回来」的真 bug ===
EnsureLogSourcesForRunningDeployments() 在 **每次打开数据源列表和启动时**
都会给 running 部署补齐数据源 —— 所以删掉托管源后,刷新页面它又回来了,
用户看到的现象就是"删不掉"。
新增 LokiDeployment.AutoSourceDisabled:
- 删除托管源时置位(DisableAutoSourceFor)
- EnsureLogSourceForDeployment 见到该开关直接 return
- 部署被编辑/重新部署时重置(EnableAutoSourceFor),即"你要用它了就恢复"
前端配套文案:
- 编辑托管源弹窗提示"重新部署会覆盖集群/Service/端口,认证与请求头保留"
- 删除确认明确"删除后不会再自动重建,重新部署该 Loki 才恢复"
=== 实测(20300eef92d2)===
v11 迁移后 8 条规则全部 窗口=5m,阈值 4/4/2/2/35000/700/7000/350
go test ./... 全绿
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@@ -166,9 +166,11 @@ func (ctrl *LogsController) DeleteSource(c *gin.Context) {
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utils.BadRequest(c, "ID 无效")
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return
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}
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// 托管数据源也允许删除:用户可能只是不想让它出现在查询页下拉里。
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// 删除后把对应部署的 AutoSourceDisabled 置位,否则列表接口/启动同步
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// 会立刻把它补回来(用户看到的现象就是"删了还在")。
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if src := services.GetLogSource(uint(id)); src != nil && src.Managed {
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utils.BadRequest(c, "平台部署的数据源随部署管理,请先删除对应部署")
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return
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services.DisableAutoSourceFor(src.Name)
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}
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if err := services.DeleteLogSource(uint(id)); err != nil {
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utils.Error(c, 400, err.Error())
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@@ -27,18 +27,23 @@ type LokiDeployment struct {
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Replicas int `json:"replicas"`
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ResourcesCPU string `json:"resourcesCPU"`
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ResourcesMem string `json:"resourcesMem"`
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StorageSize string `json:"storageSize"`
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GrafanaEnabled bool `json:"grafanaEnabled"`
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GrafanaVersion string `json:"grafanaVersion"`
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GrafanaPort int `json:"grafanaPort"`
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GrafanaEndpoint string `json:"grafanaEndpoint"`
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Status string `json:"status"`
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StatusMessage string `json:"statusMessage"`
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Endpoint string `json:"endpoint"`
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AdminUser string `json:"adminUser"`
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AdminPassword string `json:"adminPassword"`
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CreatedAt time.Time `json:"createdAt"`
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UpdatedAt time.Time `json:"updatedAt"`
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// AutoSourceDisabled 用户手动删除了"自动注册的数据源"后置为 true,
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// 平台不再自动重建,直到用户重新部署/编辑该部署。
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// 没有这个开关的话:删了数据源 → 下次打开查询页又被 EnsureLogSources 补回来,
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// 用户看到的现象就是"删不掉"。
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AutoSourceDisabled bool `json:"autoSourceDisabled"`
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StorageSize string `json:"storageSize"`
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GrafanaEnabled bool `json:"grafanaEnabled"`
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GrafanaVersion string `json:"grafanaVersion"`
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GrafanaPort int `json:"grafanaPort"`
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GrafanaEndpoint string `json:"grafanaEndpoint"`
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Status string `json:"status"`
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StatusMessage string `json:"statusMessage"`
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Endpoint string `json:"endpoint"`
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AdminUser string `json:"adminUser"`
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AdminPassword string `json:"adminPassword"`
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CreatedAt time.Time `json:"createdAt"`
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UpdatedAt time.Time `json:"updatedAt"`
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}
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func (d *LokiDeployment) BeforeCreate() {
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@@ -114,6 +114,51 @@ func (d *JsonDB) raiseLegacyAlertThresholds() {
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}
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}
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// compactAlertWindows 把告警窗口从 15 分钟压到 5 分钟,阈值按 1/3 同步下调。
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//
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// 为什么:检查间隔已经调到 5 分钟,而窗口还是 15 分钟 ——
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// 相当于同一个 15 分钟窗口每 5 分钟被完整重扫一遍(3 倍重复扫描)。
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// 在 370GB/天、全命名空间 selector 下,这是 Loki CPU 的最大稳态来源。
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//
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// 只改"仍是旧默认值"的规则(窗口 15 且阈值等于旧默认),用户自己调过的不动。
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func (d *JsonDB) compactAlertWindows() {
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type change struct {
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window int
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threshold int
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newName string
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}
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// 旧默认阈值 → 新值(窗口统一 5 分钟,阈值约 1/3)
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byOldThreshold := map[string]change{
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"致命日志 FATAL": {window: 5, threshold: 4},
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"Go panic": {window: 5, threshold: 4},
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"JVM OutOfMemoryError": {window: 5, threshold: 2},
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"StackOverflowError": {window: 5, threshold: 2},
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"应用错误激增(error > 10万)": {window: 5, threshold: 35000, newName: "应用错误激增(error > 3.5万)"},
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"ingress-nginx 5xx 错误": {window: 5, threshold: 700},
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"ingress-nginx 4xx 激增": {window: 5, threshold: 7000},
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"数据库连接失败": {window: 5, threshold: 350},
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}
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for i := range d.AlertRules {
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rule := &d.AlertRules[i]
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if rule.WindowMin != 15 {
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continue // 用户改过窗口,不动
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}
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spec, ok := byOldThreshold[rule.Name]
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if !ok {
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continue
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}
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oldThreshold := rule.Threshold
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oldWindow := rule.WindowMin
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rule.WindowMin = spec.window
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rule.Threshold = spec.threshold
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if spec.newName != "" {
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rule.Name = spec.newName
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}
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log.Printf("[schema] 告警规则 %q 窗口 %dm → %dm,阈值 %d → %d(消除重复扫描)",
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rule.Name, oldWindow, rule.WindowMin, oldThreshold, rule.Threshold)
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}
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}
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// expandDatabaseErrorPattern 把内置「数据库连接失败」规则升级为覆盖
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// MySQL / PostgreSQL / Redis 的主流报错文案。
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//
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@@ -441,7 +486,7 @@ func (d *JsonDB) dedupeLogSourceIDs() {
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//
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// v0/v1(无字段)→ 1:新增 auditLogs / schemaVersion(老库走零值兜底即可,无需处理)
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// v1 → 2:预留示例(如把 ScrapeJobs 从 logPath 拆分时,需按旧结构生成默认 job)
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const CurrentSchemaVersion = 10
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const CurrentSchemaVersion = 11
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// migrateSchema 按版本号顺序迁移老库。返回是否发生了迁移(需要回写)。
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func (d *JsonDB) migrateSchema() bool {
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@@ -524,6 +569,12 @@ func (d *JsonDB) migrateSchema() bool {
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// Redis 的 NOAUTH / WRONGPASS / connection pool timeout 等常见报错)
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d.expandDatabaseErrorPattern()
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d.SchemaVersion = 10
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case 10:
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// v10 → v11:告警窗口 15 分钟 → 5 分钟(与检查间隔对齐),
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// 阈值同比例缩小,避免"窗口变短导致更容易触发"。
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// 目标:消除同一个 15 分钟窗口被重复扫描 3 次的浪费(Loki CPU 降到 1/3 扫描量)。
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d.compactAlertWindows()
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d.SchemaVersion = 11
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default:
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// 防御:出现未知版本(比当前代码还新)时不乱动,避免降级把数据写坏
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log.Printf("[schema] 数据库版本 %d 高于当前代码支持版本 %d,跳过迁移", d.SchemaVersion, CurrentSchemaVersion)
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@@ -72,10 +72,10 @@ var builtinRules = []builtinRule{
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// —— 致命类:这类日志本该极少出现,但也不能一条就报 ——
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// 全命名空间类查询一律排除 app=loki:Loki 会把执行过的查询语句记成自身 info 日志,
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// 查询文本包含规则关键字时告警会"命中自己",造成持续误报。
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{name: "致命日志 FATAL", query: `{namespace=~".+", app!="loki"} |= "FATAL"`, windowMin: 15, threshold: 10, cooldown: 120},
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{name: "Go panic", query: `{namespace=~".+", app!="loki"} |= "panic:"`, windowMin: 15, threshold: 10, cooldown: 120},
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{name: "JVM OutOfMemoryError", query: `{namespace=~".+", app!="loki"} |~ "(^|[^a-zA-Z])OutOfMemoryError"`, windowMin: 15, threshold: 5, cooldown: 120},
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{name: "StackOverflowError", query: `{namespace=~".+", app!="loki"} |= "StackOverflowError"`, windowMin: 15, threshold: 5, cooldown: 120},
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{name: "致命日志 FATAL", query: `{namespace=~".+", app!="loki"} |= "FATAL"`, windowMin: 5, threshold: 4, cooldown: 120},
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{name: "Go panic", query: `{namespace=~".+", app!="loki"} |= "panic:"`, windowMin: 5, threshold: 4, cooldown: 120},
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{name: "JVM OutOfMemoryError", query: `{namespace=~".+", app!="loki"} |~ "(^|[^a-zA-Z])OutOfMemoryError"`, windowMin: 5, threshold: 2, cooldown: 120},
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{name: "StackOverflowError", query: `{namespace=~".+", app!="loki"} |= "StackOverflowError"`, windowMin: 5, threshold: 2, cooldown: 120},
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// 注意:这里**只放日志类告警**。
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// 「节点 NotReady」「容器 OOMKilled」属于基础设施指标监控(kube-state-metrics /
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// Prometheus)的职责,用日志去匹配这些字符串既不可靠(日志没开或轮转就漏),
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@@ -84,12 +84,12 @@ var builtinRules = []builtinRule{
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// 第二轮上调(500~5000 这一档实测仍然太敏感):
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// 这几个量级在业务高峰期本来就是常态,阈值贴着基线就等于"每天准点报警"。
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// 原则:宁可只报"明显异常",也不要让人对告警脱敏。
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{name: "应用错误激增(error > 10万)", query: `{namespace=~".+", app!="loki"} |~ "(?i)\berror\b"`, windowMin: 15, threshold: 100000, cooldown: 240},
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{name: "ingress-nginx 5xx 错误", query: `{app=~"ingress-nginx|nginx-ingress-controller"} |~ " (50[0-4]|5[2-9][0-9]) "`, windowMin: 15, threshold: 2000, cooldown: 240},
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{name: "ingress-nginx 4xx 激增", query: `{app=~"ingress-nginx|nginx-ingress-controller"} |~ " 4[0-9][0-9] "`, windowMin: 15, threshold: 20000, cooldown: 240},
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{name: "应用错误激增(error > 3.5万)", query: `{namespace=~".+", app!="loki"} |~ "(?i)\berror\b"`, windowMin: 5, threshold: 35000, cooldown: 240},
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{name: "ingress-nginx 5xx 错误", query: `{app=~"ingress-nginx|nginx-ingress-controller"} |~ " (50[0-4]|5[2-9][0-9]) "`, windowMin: 5, threshold: 700, cooldown: 240},
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{name: "ingress-nginx 4xx 激增", query: `{app=~"ingress-nginx|nginx-ingress-controller"} |~ " 4[0-9][0-9] "`, windowMin: 5, threshold: 7000, cooldown: 240},
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// 数据库连接类错误:覆盖 MySQL / PostgreSQL / Redis 的主流报错文案
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// (详见函数上方注释,不要加裸 "EOF" / "timeout",那会匹配到几乎所有网络日志)
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{name: "数据库连接失败", query: `{namespace=~".+", app!="loki"} |~ "(?i)(connection refused|connection reset by peer|broken pipe|no route to host|cannot assign requested address|connection timed out|i/o timeout|too many connections|too many clients already|max number of clients reached|connection pool|connection is not available|could not create connection|communications link failure|server closed the connection unexpectedly|unexpected EOF|driver: bad connection|FATAL:\\s*(password authentication failed|sorry, too many clients|terminating connection)|NOAUTH|WRONGPASS|READONLY you can.t write|CLUSTERDOWN)"`, windowMin: 15, threshold: 1000, cooldown: 240},
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{name: "数据库连接失败", query: `{namespace=~".+", app!="loki"} |~ "(?i)(connection refused|connection reset by peer|broken pipe|no route to host|cannot assign requested address|connection timed out|i/o timeout|too many connections|too many clients already|max number of clients reached|connection pool|connection is not available|could not create connection|communications link failure|server closed the connection unexpectedly|unexpected EOF|driver: bad connection|FATAL:\\s*(password authentication failed|sorry, too many clients|terminating connection)|NOAUTH|WRONGPASS|READONLY you can.t write|CLUSTERDOWN)"`, windowMin: 5, threshold: 350, cooldown: 240},
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}
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// seedBuiltinAlertRules 为每个平台管理的 LogSource(managed=true)补齐内置规则:
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@@ -229,6 +229,13 @@ func (s *DeploymentService) List(page, pageSize int) ([]models.LokiDeployment, i
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}
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func (s *DeploymentService) Update(id uint, updates map[string]interface{}) error {
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// 用户编辑部署 = 明确表达"这个部署我还在用",重新允许自动注册数据源。
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// (对应地,用户在数据源列表里删掉自动源后不会再被补回来,直到这里重置)
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defer func() {
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if d, err := s.Get(id); err == nil && d != nil {
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EnableAutoSourceFor(d.Name)
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}
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}()
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if value, exists := updates["retentionDays"]; exists {
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days, ok := value.(float64)
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if !ok || days < 1 || days != float64(int(days)) {
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@@ -518,6 +518,10 @@ func EnsureLogSourceForDeployment(d *models.LokiDeployment) {
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if d == nil || d.Endpoint == "" {
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return
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}
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// 用户主动删过这个自动数据源 → 不再补回来(重新部署/编辑部署会重置该开关)
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if d.AutoSourceDisabled {
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return
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}
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svc := "loki"
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port := 3100
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target := &models.LogSource{
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@@ -570,6 +574,42 @@ func EnsureLogSourceForDeployment(d *models.LokiDeployment) {
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_, _ = CreateLogSource(target)
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}
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// DisableAutoSourceFor 标记某个部署不再自动注册数据源。
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//
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// 触发场景:用户在「日志查询 → 数据源」里删掉了平台自动创建的数据源。
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// 不置位的话,EnsureLogSourcesForRunningDeployments 会立刻把它补回来。
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func DisableAutoSourceFor(name string) {
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db := repository.GetDB()
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if db == nil {
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return
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}
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db.Lock()
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defer db.Unlock()
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for i := range db.Deployments {
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if db.Deployments[i].Name == name && !db.Deployments[i].AutoSourceDisabled {
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db.Deployments[i].AutoSourceDisabled = true
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log.Printf("[log-source] %q 的自动数据源已被用户删除,不再自动重建(重新部署可恢复)", name)
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db.RequestSave()
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}
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}
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}
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// EnableAutoSourceFor 重新允许自动注册(部署被编辑/重新部署时调用)。
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func EnableAutoSourceFor(name string) {
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db := repository.GetDB()
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if db == nil {
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return
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}
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db.Lock()
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defer db.Unlock()
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for i := range db.Deployments {
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if db.Deployments[i].Name == name && db.Deployments[i].AutoSourceDisabled {
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db.Deployments[i].AutoSourceDisabled = false
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db.RequestSave()
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}
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}
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}
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// EnsureLogSourcesForRunningDeployments 补齐运行中部署的数据源,避免查询页默认没有数据源。
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func EnsureLogSourcesForRunningDeployments() {
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db := repository.GetDB()
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@@ -44,6 +44,8 @@ export default {
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testing: 'Testing…',
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deleteTitle: 'Delete data source',
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deleteDesc: 'Deleting "{{name}}" breaks queries and access policies based on it. Delete it?',
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deleteDescManaged: '"{{name}}" was created automatically by a deployment. The platform will NOT recreate it (access policies are removed too) until you redeploy or edit that Loki deployment.',
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managedEditHint: 'This source is created by Component Deploy: redeploying overwrites the cluster/service/port connection details; auth and header changes you make here are kept.',
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deleteAria: 'Delete {{name}}',
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defaultBadge: 'Default',
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emptyTitle: 'No data sources yet',
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@@ -43,6 +43,8 @@ export default {
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testing: '测试中…',
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deleteTitle: '删除数据源',
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deleteDesc: '删除「{{name}}」后,基于它的查询与授权策略将失效,确定删除吗?',
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deleteDescManaged: '「{{name}}」由部署自动创建。删除后平台不会再自动重建它(授权策略一并失效);重新部署或编辑该 Loki 部署才会恢复。',
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managedEditHint: '该数据源由「组件部署」自动创建:重新部署会覆盖集群/Service/端口等连接信息,你在此修改的认证方式与请求头会保留。',
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deleteAria: '删除 {{name}}',
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||||
defaultBadge: '默认',
|
||||
emptyTitle: '还没有数据源',
|
||||
|
||||
@@ -127,23 +127,22 @@ export const SourcesManager = memo(function SourcesManager({ sources, onSaved }:
|
||||
{testing ? <Loader2 className="mr-1 size-3.5 animate-spin" /> : <Zap className="mr-1 size-3.5" />}
|
||||
{testing ? t('source.testing') : t('source.test')}
|
||||
</Button>
|
||||
{!managed && (
|
||||
<Button variant="outline" size="sm" onClick={() => setForm({ ...source, headers: Object.fromEntries((source.headerNames ?? []).map(name => [name, ''])) })}>
|
||||
<Pencil className="mr-1 size-3.5" />
|
||||
{t('source.edit')}
|
||||
</Button>
|
||||
)}
|
||||
{!managed && (
|
||||
<Button
|
||||
variant="outline"
|
||||
size="sm"
|
||||
className="text-destructive hover:bg-destructive/10"
|
||||
aria-label={t('source.deleteAria', { name: source.name })}
|
||||
onClick={() => setDeleteTarget(source)}
|
||||
>
|
||||
<Trash2 className="size-3.5" />
|
||||
</Button>
|
||||
)}
|
||||
{/* 托管源同样允许编辑/删除:
|
||||
托管只代表"由部署自动创建",不代表用户不能改连接参数或不想让它出现在下拉里。
|
||||
删除托管源时后端会把该部署标记为 AutoSourceDisabled,不会立刻重建。 */}
|
||||
<Button variant="outline" size="sm" onClick={() => setForm({ ...source, headers: Object.fromEntries((source.headerNames ?? []).map(name => [name, ''])) })}>
|
||||
<Pencil className="mr-1 size-3.5" />
|
||||
{t('source.edit')}
|
||||
</Button>
|
||||
<Button
|
||||
variant="outline"
|
||||
size="sm"
|
||||
className="text-destructive hover:bg-destructive/10"
|
||||
aria-label={t('source.deleteAria', { name: source.name })}
|
||||
onClick={() => setDeleteTarget(source)}
|
||||
>
|
||||
<Trash2 className="size-3.5" />
|
||||
</Button>
|
||||
</div>
|
||||
</div>
|
||||
)
|
||||
@@ -159,6 +158,11 @@ export const SourcesManager = memo(function SourcesManager({ sources, onSaved }:
|
||||
<DialogHeader>
|
||||
<DialogTitle>{form?.id ? `${t('source.editTitle')} · ${form.name}` : t('source.createTitle')}</DialogTitle>
|
||||
</DialogHeader>
|
||||
{form?.id && form.managed && (
|
||||
<p className="rounded-md border border-warning/40 bg-warning/10 px-3 py-2 text-xs text-warning">
|
||||
{t('source.managedEditHint')}
|
||||
</p>
|
||||
)}
|
||||
{form && (
|
||||
<div className="grid gap-4 sm:grid-cols-2">
|
||||
<label className={labelClass}>
|
||||
@@ -293,7 +297,9 @@ export const SourcesManager = memo(function SourcesManager({ sources, onSaved }:
|
||||
onOpenChange={open => { if (!open) setDeleteTarget(null) }}
|
||||
name={deleteTarget?.name}
|
||||
title={t('source.deleteTitle')}
|
||||
description={t('source.deleteDesc', { name: deleteTarget?.name ?? '' })}
|
||||
description={deleteTarget?.managed
|
||||
? t('source.deleteDescManaged', { name: deleteTarget.name })
|
||||
: t('source.deleteDesc', { name: deleteTarget?.name ?? '' })}
|
||||
loading={saving}
|
||||
onConfirm={() => void remove()}
|
||||
/>
|
||||
|
||||
Reference in new issue
Block a user