rootandClaude Opus 5.5
ad472a1a19
- 两级:L1 进程内存(按 region 限条数的 LRU、5 分钟)+ L2 PG kv_cache;读 L1 → L2 → 源,写两级 - 迁移 0086:kv_cache 加 fresh_until(过期先用旧值的宽限期)与 pinned(LRU 淘汰跳过);新表 cache_stat 按天 × region 汇总命中 - stale-while-revalidate:宽限期 = TTL 的 50%(上限 7 天),旧值先返回、同 key 后台只刷一次,刷新失败继续用旧值并记警告 - 同进程同 key 并发只回源一次;回源抛错不缓存;PG 读写失败按未命中 / 不写处理 - PgCache.delete / clear 发 pg_notify(umt_cache_invalidate),listenCacheInvalidation 收到后丢 L1;监听在线才启用 L1,断线停用、重连后整体清空 - PgCache.get 只认新鲜条目,getEntry 带回旧值;renew 只续新鲜条目并可标 pinned Co-Authored-By: Claude Opus 5.5 <[email protected]> Claude-Session: https://claude.ai/code/session_01Cxwgnn2pbzQ7rXv3rq7fei
33 lines
925 B
TypeScript
33 lines
925 B
TypeScript
// 统一从本包取 Kysely 与 sql,避免各包各装一份 kysely
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export { type Kysely, type RawBuilder, type Selectable, sql, type Transaction } from "kysely";
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export {
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CACHE_INVALIDATE_CHANNEL,
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type CacheCounters,
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type CachedOptions,
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type CacheEntry,
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cachedCall,
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DEFAULT_CACHE_SIZE,
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DEFAULT_CACHE_TTL,
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defaultGrace,
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type FetchPolicy,
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listenCacheInvalidation,
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MetadataCache,
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type MetadataCacheOptions,
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metadataCacheFor,
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PgCache,
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pgCacheFor,
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type SetOptions as CacheSetOptions,
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STALE_GRACE_MAX_SEC,
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STALE_GRACE_RATIO,
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} from "./cache.ts";
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export { type CreateDbOptions, createDb } from "./client.ts";
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export { createMigrator, MIGRATIONS_DIR, type MigratorOptions, migrateToLatest, resetSchema } from "./migrator.ts";
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export {
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type AcquireOptions,
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type AcquireResult,
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type BucketSpec,
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PgTokenBucket,
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pgTokenBucketFor,
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} from "./rate-limit.ts";
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export type * from "./types.ts";
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