perf(logs): 日志量统计改用 index/volume_range(快 ~1300 倍)+ 查询护栏 + 真实错误提示

=== 一、现象 ===
- /logs 页「正在统计整个时间范围的日志量」24 小时查询转圈 5 分钟不出结果
- /analysis 页默认 1 小时也一直「加载中...」
- 期间 Loki 被 OOMKilled(2Gi) → Pod not Ready → Service 无端点 → 全站查询 502

=== 二、根因(实测数据) ===
同一 query {namespace="astralx", app="cex-ipublic-gateway"}:
  24h count_over_time[15m] step=15m  → 53.7s 后连接断开(算不完)
  24h count_over_time[1h]  step=1h   → 60.1s 失败
  24h index/stats(只读索引)        → 1.3s  → bytes 44.9GB / entries 3.33亿 / chunks 2474
  24h index/volume_range step=1h     → 111ms → 25 个点
  1h  index/volume_range step=5m     → 115ms → 13 个点

原因:count_over_time 必须**下载并解码所有 chunk**;volume_range 只读 TSDB 索引里的
chunk 元数据(字节数),根本不碰日志内容。该 app 一天就有 3.33 亿条 / 44.9 GB。

=== 三、改造 ===
1. LokiHistogram 改用官方 /loki/api/v1/index/volume_range(带 step)
   - 返回单位是「字节」,bucket 带 unit=bytes,前端格式化为 KB/MB/GB
   - 老版本 Loki 没有该端点时自动回退 count_over_time(unit=entries)
2. 查询护栏(防止单条查询拖垮单实例 Loki)
   - 统计范围上限 7 天,超出直接 400「统计范围过大(27.0 天),最多支持 7 天」
   - 重查询单独 30s 超时(原来 120s)
   - 全局并发重查询上限 2,超出立刻 429「请稍后重试」(不排队)
   - /logs/metrics(analysis 页)共用同一套护栏
3. 前端
   - 发起新查询前 abort 上一次请求(原来只用版本号丢弃结果,旧请求仍在后端跑)
   - histogram/query 支持 signal;超时 40s/60s(原 125s)
   - 错误不再统一显示「日志量统计失败」,按 429/400/502/超时给不同文案
   - 时间线按 unit 格式化(字节 → GB),i18n 去掉「条」
4. Loki 侧官方优化(此前 limits_config 只有 retention_period)
   - query_range: align_queries_with_step + cache_results + embedded_cache 100MB
   - limits_config: max_query_parallelism 8(默认 32,单实例过高)
   - 已用 `loki -verify-config` 校验通过(config is valid)

=== 四、实测(平台 API) ===
  1 分钟  0.02s  2 桶
  1 小时  0.05s  61 桶  3.8 GB
  6 小时  0.04s  73 桶  12.3 GB
  24 小时 0.04s  97 桶  41.8 GB   ← 改造前 53.7s 失败
  7 天    0.05s  37 桶  58.2 GB
  27 天   0.01s  400「最多支持 7 天」

镜像:lghost/lokistack:latest + v0.1 = sha256:9fa1c4597533
This commit is contained in:
opsx committed 2026-10-28 15:54:55 +00:00
1 parent 9acc15f4d2
commit de376a1284
8 files changed
+229 -24

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+7 -2
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@@ -25,9 +25,14 @@ export const logsApi = {
updateSource: (id: number, data: Partial<LogSource>) => http.put(`/logs/sources/${id}`, data),
deleteSource: (id: number) => http.delete(`/logs/sources/${id}`),
testSource: (data: Partial<LogSource>) => http.post<{ success: boolean; message: string }>('/logs/sources/test', data),
query: (data: LogQuery) => http.post<LogResult>('/logs/query', data, { timeout: 125000 }),
// 查询/统计都支持外部 signal 取消:用户改条件时必须断开旧请求,
// 否则旧请求会在后端继续占用 Loki CPU(历史上把实例拖到 OOM/不 Ready)。
query: (data: LogQuery, opts?: { signal?: AbortSignal }) =>
http.post<LogResult>('/logs/query', data, { timeout: 60000, ...opts }),
context: (data: { sourceId: number; timestampNs: string; labels: Record<string, string> }) => http.post<{ before: LogEntry[]; after: LogEntry[] }>('/logs/context', data),
histogram: (data: LogQuery) => http.post<Array<Record<string, unknown>>>('/logs/histogram', data, { timeout: 125000 }),
/** 日志量统计:后端有 7 天范围上限与 30s 超时,前端超时略大于它 */
histogram: (data: LogQuery, opts?: { signal?: AbortSignal }) =>
http.post<Array<Record<string, unknown>>>('/logs/histogram', data, { timeout: 40000, ...opts }),
/** LogQL 指标查询(admin):query 中的 [$step] 占位符由后端按时间跨度替换 */
metrics: (data: MetricQuery, opts?: { signal?: AbortSignal }) => http.post<MetricSeries[]>('/logs/metrics', data, { timeout: 125000, ...opts }),
labels: (sourceId: number, start?: number, end?: number) => http.get<string[]>(`/logs/labels${buildQuery({ sourceId, start, end } as { page?: number; pageSize?: number })}`),
+3 -3
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@@ -126,9 +126,9 @@ export default {
timelineAria: 'Log volume timeline',
timelineTitle: 'Log volume timeline',
timelineHint: 'Hover to see counts; press and drag at any height to select a time span; the query runs automatically after selection.',
timelineTotal: '{{count}} logs in range',
timelineBucket: '{{count}} logs',
timelineBucket_one: '{{count}} log',
timelineTotal: 'Volume in range: {{count}}',
timelineBucket: '{{count}}',
timelineBucket_one: '{{count}}',
},
results: {
aria: 'Log results',
+2 -2
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@@ -125,8 +125,8 @@ export default {
timelineAria: '日志量时间线',
timelineTitle: '日志量时间线',
timelineHint: '悬停查看数量,按住任意高度拖选时间;选择后自动查询。',
timelineTotal: '时间桶合计 {{count}} 条',
timelineBucket: '{{count}} 条',
timelineTotal: '日志量合计 {{count}}',
timelineBucket: '{{count}}',
},
results: {
aria: '日志结果',
@@ -1,11 +1,28 @@
import { useRef, useState } from 'react'
import { useTranslation } from 'react-i18next'
type Bucket = { timestamp: string; count: number }
type Bucket = { timestamp: string; count: number; unit?: string }
const formatTime = (timestamp: string) => new Date(timestamp).toLocaleTimeString([], { hour: '2-digit', minute: '2-digit' })
const formatCount = (count: number) => new Intl.NumberFormat('zh-CN').format(count)
/**
* 日志量展示:后端优先用 index/volume_range(只读索引,快约 500 倍),
* 它返回的是**字节数**(unit=bytes);老版本 Loki 回退 count_over_time 时是条数。
* 按 unit 决定格式,避免把 44 GB 显示成 "44894961500 条"。
*/
const formatVolume = (count: number, unit?: string) => {
if (unit !== 'bytes') return formatCount(count)
const units = ['B', 'KB', 'MB', 'GB', 'TB']
let v = count
let i = 0
while (v >= 1024 && i < units.length - 1) {
v /= 1024
i++
}
return `${v >= 100 ? v.toFixed(0) : v.toFixed(1)} ${units[i]}`
}
export function LogVolumeTimeline({ buckets, onSelect }: {
buckets: Bucket[]
onSelect: (start: number, end: number) => void
@@ -38,7 +55,7 @@ export function LogVolumeTimeline({ buckets, onSelect }: {
return <section className="rounded-xl border bg-card p-4" aria-label={t('volume.timelineAria')}>
<div className="mb-3 flex flex-wrap items-baseline justify-between gap-2">
<div><h2 className="text-sm font-semibold">{t('volume.timelineTitle')}</h2><p className="text-xs text-muted-foreground">{t('volume.timelineHint')}</p></div>
<span className="text-sm tabular-nums">{t('volume.timelineTotal', { count: formatCount(total) })}</span>
<span className="text-sm tabular-nums">{t('volume.timelineTotal', { count: formatVolume(total, buckets[0]?.unit) })}</span>
</div>
<div className="flex gap-2">
<div className="relative h-44 min-w-0 flex-1 select-none touch-none cursor-crosshair"
@@ -55,7 +72,7 @@ export function LogVolumeTimeline({ buckets, onSelect }: {
</div>)}
</div>
{hover !== null && <div className="pointer-events-none absolute z-10 top-2 rounded-md border bg-popover px-2 py-1 text-xs text-popover-foreground shadow-sm" style={{ left: `${Math.min(78, Math.max(2, (hover + 0.5) / buckets.length * 100))}%` }}>
{new Date(buckets[hover].timestamp).toLocaleString()} · <strong>{t('volume.timelineBucket', { count: formatCount(buckets[hover].count) })}</strong>
{new Date(buckets[hover].timestamp).toLocaleString()} · <strong>{t('volume.timelineBucket', { count: formatVolume(buckets[hover].count, buckets[hover].unit) })}</strong>
</div>}
</div>
<div className="flex h-44 w-14 flex-col justify-between text-right text-xs tabular-nums text-muted-foreground"><span>{formatCount(max)}</span><span>{formatCount(Math.round(max / 2))}</span><span>0</span></div>
+65 -10
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@@ -26,6 +26,39 @@ const ns = (ms: number) => Math.round(ms).toString() + '000000'
type Bucket = { timestamp: string; count: number }
/** 是否为主动取消(abort)造成的错误 —— 这类不该提示用户 */
function isAbortError(e: unknown): boolean {
return e instanceof DOMException
? e.name === 'AbortError'
: typeof e === 'object' && e !== null && (e as { name?: string }).name === 'AbortError'
}
/**
* 把后端错误翻译成用户能看懂的一句话。
* 之前统一显示「日志量统计失败」,把 429/400/超时/Loki 不可用全糊在一起,
* 用户既不知道该缩小范围还是该等,也无从判断是不是平台挂了。
*/
function describeQueryError(e: unknown, fallback: string): string {
const raw = e instanceof Error ? e.message : String(e ?? '')
if (!raw) return fallback
const lower = raw.toLowerCase()
if (raw.includes('统计范围过大') || lower.includes('too large') || lower.includes('range exceeds')) {
return raw
}
if (raw.includes('较多日志量统计') || lower.includes('too many requests') || lower.includes('429')) {
return '当前有其他日志量统计正在进行(单实例 Loki 保护),请等几秒后重试'
}
if (lower.includes('no endpoints available') || lower.includes('http 502') || lower.includes('http 503')) {
return 'Loki 暂时不可用(Pod 未就绪或无端点),请稍后重试;若持续请查看 Loki 实例状态'
}
if (lower.includes('timeout') || lower.includes('timed out') || lower.includes('aborted')) {
return '统计超时(数据量过大),请缩小时间范围后重试'
}
// 其它情况:保留原始信息,便于排查(截断避免撑爆布局)
return raw.length > 160 ? raw.slice(0, 160) + '…' : raw
}
export default function LogsPage() {
const { t } = useTranslation('logs')
const admin = getUser()?.role === 'admin'
@@ -42,7 +75,11 @@ export default function LogsPage() {
const [searched, setSearched] = useState(false)
const [buckets, setBuckets] = useState<Bucket[]>([])
const [histogramLoading, setHistogramLoading] = useState(false)
const [histogramError, setHistogramError] = useState(false)
// 从 boolean 改为字符串:原来只显示"日志量统计失败",
// 真实原因(429 并发超限 / 400 范围过大 / Loki 不可用)全被吞掉。
const [histogramError, setHistogramError] = useState<string>('')
/** 当前在跑的查询/统计控制器:发起新请求前 abort 掉,避免重查询叠加 */
const histAbortRef = useRef<AbortController | null>(null)
const [cursor, setCursor] = useState('')
const [pageIndex, setPageIndex] = useState(0)
const [pageCursors, setPageCursors] = useState<string[]>([''])
@@ -62,7 +99,7 @@ export default function LogsPage() {
} catch (e) { setError(e instanceof Error ? e.message : t('source.loadFailed')) }
}, [t])
useEffect(() => { void reloadSources() }, [reloadSources])
useEffect(() => { requestVersion.current++; setEntries([]); setBuckets([]); setHistogramLoading(false); setHistogramError(false); setCursor(''); setPageIndex(0); setPageCursors(['']); setSearched(false); setLoading(false) }, [sourceId])
useEffect(() => { requestVersion.current++; setEntries([]); setBuckets([]); setHistogramLoading(false); setHistogramError(''); setCursor(''); setPageIndex(0); setPageCursors(['']); setSearched(false); setLoading(false) }, [sourceId])
// 从日志分析页等入口跳转:带 ?q= 预填输入框并尝试执行一次;执行后清掉参数防刷新重复执行。
// 预填不等数据源就绪(无数据源时也要让用户看到带来的查询),是否真正执行由 search 内部判断
@@ -88,10 +125,18 @@ export default function LogsPage() {
if (!r || !sourceId || !searchQuery) return
const version = ++requestVersion.current
setLoading(true); setLoadingStartedAt(Date.now()); setError('')
if (!paging) { setBuckets([]); setHistogramLoading(false); setHistogramError(false) }
if (!paging) { setBuckets([]); setHistogramLoading(false); setHistogramError('') }
const data: LogQuery = { sourceId, query: searchQuery, ...r, limit, direction: 'backward', cursor: nextCursor }
// 关键:发起新查询前,先断掉上一次仍在跑的查询/统计。
// 否则用户连续改条件会产生多条并发重查询,把单实例 Loki 打满
// (历史事故:27 天统计 → OOMKilled → Pod 不 Ready → 全站 502)。
histAbortRef.current?.abort()
const histController = new AbortController()
histAbortRef.current = histController
try {
const result = await logsApi.query(data)
const result = await logsApi.query(data, { signal: histController.signal })
if (version !== requestVersion.current) return
if (paging && result.entries.length === 0) { setCursor(''); return }
if (!paging) setQueryHistory(rememberQuery(data.query))
@@ -104,13 +149,23 @@ export default function LogsPage() {
setPageCursors(previous => paging ? [...previous.slice(0, targetPage), nextCursor] : [''])
if (!paging) {
setHistogramLoading(true)
setHistogramError(false)
void logsApi.histogram(data).then(histogram => {
setHistogramError('')
void logsApi.histogram(data, { signal: histController.signal }).then(histogram => {
if (version === requestVersion.current) {
setBuckets(histogram.map(item => ({ timestamp: String(item.timestamp), count: Number(item.count) || 0 })))
setBuckets(histogram.map(item => ({
timestamp: String(item.timestamp),
count: Number(item.count) || 0,
unit: typeof item.unit === 'string' ? item.unit : undefined,
})))
}
}).catch(() => { if (version === requestVersion.current) setHistogramError(true) })
.finally(() => { if (version === requestVersion.current) setHistogramLoading(false) })
}).catch((e: unknown) => {
// 主动取消不算错误,直接静默
if (isAbortError(e) || histController.signal.aborted) return
if (version === requestVersion.current) setHistogramError(describeQueryError(e, t('volume.statsError')))
}).finally(() => {
// 无论成功/失败/取消都必须清掉 loading,否则会一直转圈
if (!histController.signal.aborted || version === requestVersion.current) setHistogramLoading(false)
})
}
} catch (e) { if (!quiet && version === requestVersion.current) setError(e instanceof Error ? e.message : t('toolbar.queryFailed')) }
finally { if (version === requestVersion.current) { setLoading(false); setLoadingStartedAt(null) } }
@@ -202,7 +257,7 @@ export default function LogsPage() {
{admin && tab === 'access' && <PolicyGroupsPage sources={sources} />}
{admin && tab === 'sources' && <SourcesManager sources={sources} onSaved={() => void reloadSources()} />}
{tab === 'query' && histogramLoading && <div role="status" className="flex items-center gap-2 rounded-xl border bg-card p-4 text-sm text-muted-foreground"><Loader2 className="size-4 animate-spin text-info" />{t('volume.statsLoading')}</div>}
{tab === 'query' && histogramError && <p className="rounded-xl border bg-card p-4 text-sm text-muted-foreground">{t('volume.statsError')}</p>}
{tab === 'query' && histogramError && <p className="rounded-xl border bg-card p-4 text-sm text-muted-foreground">{histogramError}</p>}
{tab === 'query' && buckets.length > 0 && <LogVolumeTimeline key={`${buckets[0].timestamp}-${buckets.length}`} buckets={buckets} onSelect={selectTimeRange} />}
{tab === 'query' && <LogResultsPanel key={`${sourceId}:${executedQuery}:${executedRange?.start}:${executedRange?.end}`} entries={entries} searched={searched} hasSource={sources.length > 0} pageIndex={pageIndex} hasNextPage={Boolean(cursor)} loading={loading} loadingStartedAt={loadingStartedAt} query={query} terms={highlightTerms} onQueryChange={setQuery} onApplyDomain={applyDomainFilter} onShowContext={row => void showContext(row)} onSearch={() => void search()} onNextPage={() => void search(cursor, false, undefined, undefined, pageIndex + 1)} onPreviousPage={() => void search(pageCursors[pageIndex - 1] ?? '', false, undefined, undefined, pageIndex - 1)} />}
<LogContextDialog context={context} terms={highlightTerms} onClose={() => setContext(null)} />