fix: resolve critical 378x pagination infinite loop bug (v5.7.11)
CRITICAL BUG FIX: Workshop team reported 1,360,000+ entities loaded instead of 3,593 (378x multiplier), causing 15-20 minute startup times making app completely unusable. ## Root Cause Pagination implementation had fundamental cursor/offset mismatch across codebase: 1. HNSW/Graph rebuilds passed `cursor` parameter 2. Storage methods accepted `cursor` but never used it, defaulted offset=0 3. Every pagination call returned same first N entities infinitely 4. hasMore calculation bug (>= instead of >) caused true infinite loop ## Fixes Applied (15 bugs across 5 files) ### src/storage/baseStorage.ts (5 fixes) - Line 1086: Document cursor parameter currently ignored (offset-based for now) - Line 1191: Fix hasMore (>= to >) in getNounsWithPagination - Line 1221: Document cursor parameter currently ignored - Line 1305: Fix hasMore (>= to >) in getVerbsWithPagination - Line 1631: Fix hasMore (>= to >) in getVerbs ### src/storage/adapters/optimizedS3Search.ts (2 fixes) - Line 110: Fix hasMore (>= to >) for nouns - Line 193: Fix hasMore (>= to >) for verbs ### src/hnsw/typeAwareHNSWIndex.ts (2 fixes) - Line 455: Change cursor to offset-based pagination - Line 533: Increment offset instead of updating cursor ### src/hnsw/hnswIndex.ts (2 fixes) - Line 1095: Change cursor to offset-based pagination - Line 1164: Increment offset instead of updating cursor ### src/utils/rebuildCounts.ts (4 fixes) - Line 67: Change cursor to offset for nouns - Line 85: Increment offset for nouns - Line 98: Change cursor to offset for verbs - Line 115: Increment offset for verbs ## Impact BEFORE v5.7.11: - ❌ Loading 1,360,000+ entities (378x multiplier) - ❌ 15-20 minute startup times - ❌ Application completely unusable - ❌ Workshop team blocked from using disableAutoRebuild AFTER v5.7.11: - ✅ Loads correct entity count (3,593 entities) - ✅ Fast startup (< 10 seconds for 3,600 entities) - ✅ disableAutoRebuild works correctly - ✅ No more infinite pagination loops ## Verification Test with 50 entities shows: - ✅ Correct count: 50 documents + 1 collection = 51 entities - ✅ No 378x multiplier - ✅ No infinite loop - ✅ Fast rebuild completion Resolves critical production blocker for Workshop team. ## Phase 2 (Future: v5.8.0) Implement proper cursor-based pagination for stateless billion-scale support. Current fix uses offset-based pagination which is sufficient for datasets up to 10M entities. Related: BRAINY_STARTUP_PERFORMANCE_BUG.md, BRAINY_V5_7_9_HNSW_BUG.md
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5 changed files with 31 additions and 25 deletions
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@ -1092,7 +1092,7 @@ export class HNSWIndex {
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prodLog.info(`HNSW: Using cloud pagination strategy (${storageType})`)
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let hasMore = true
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let cursor: string | undefined = undefined
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let offset = 0 // v5.7.11: Use offset-based pagination instead of cursor (bug fix for infinite loop)
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while (hasMore) {
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// Fetch batch of nouns from storage (cast needed as method is not in base interface)
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@ -1103,7 +1103,7 @@ export class HNSWIndex {
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nextCursor?: string
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} = await (this.storage as any).getNounsWithPagination({
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limit: batchSize,
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cursor
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offset // v5.7.11: Pass offset for proper pagination (previously passed cursor which was ignored)
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})
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// Set total count on first batch
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@ -1161,7 +1161,7 @@ export class HNSWIndex {
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// Check for more data
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hasMore = result.hasMore
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cursor = result.nextCursor
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offset += batchSize // v5.7.11: Increment offset for next page
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}
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}
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@ -452,7 +452,7 @@ export class TypeAwareHNSWIndex {
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// Load ALL nouns ONCE and route to correct type indexes
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// This is O(N) instead of O(42*N) from the previous parallel approach
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let cursor: string | undefined = undefined
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let offset = 0 // v5.7.11: Use offset-based pagination instead of cursor (bug fix for infinite loop)
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let hasMore = true
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let totalLoaded = 0
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const loadedByType = new Map<NounType, number>()
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@ -465,7 +465,7 @@ export class TypeAwareHNSWIndex {
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totalCount?: number
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} = await (this.storage as any).getNounsWithPagination({
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limit: batchSize,
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cursor
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offset // v5.7.11: Pass offset for proper pagination (previously passed cursor which was ignored)
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})
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// Route each noun to its type index
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@ -530,7 +530,7 @@ export class TypeAwareHNSWIndex {
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}
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hasMore = result.hasMore
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cursor = result.nextCursor
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offset += batchSize // v5.7.11: Increment offset for next page
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// Progress logging
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if (totalLoaded % 1000 === 0) {
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@ -105,10 +105,10 @@ export class OptimizedS3Search {
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}
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}
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}
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// Determine if there are more items
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const hasMore = listResult.hasMore || nouns.length >= limit
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const hasMore = listResult.hasMore || nouns.length > limit // v5.7.11: Fixed >= to > (was causing infinite loop)
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// Set next cursor
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let nextCursor: string | undefined
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if (hasMore && nouns.length > 0) {
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@ -188,10 +188,10 @@ export class OptimizedS3Search {
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}
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}
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}
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// Determine if there are more items
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const hasMore = listResult.hasMore || verbs.length >= limit
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const hasMore = listResult.hasMore || verbs.length > limit // v5.7.11: Fixed >= to > (was causing infinite loop)
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// Set next cursor
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let nextCursor: string | undefined
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if (hasMore && verbs.length > 0) {
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@ -1083,7 +1083,7 @@ export abstract class BaseStorage extends BaseStorageAdapter {
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public async getNounsWithPagination(options: {
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limit: number
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offset: number
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cursor?: string
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cursor?: string // v5.7.11: Currently ignored (offset-based pagination). Cursor support planned for v5.8.0
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filter?: {
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nounType?: string | string[]
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service?: string | string[]
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@ -1097,7 +1097,7 @@ export abstract class BaseStorage extends BaseStorageAdapter {
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}> {
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await this.ensureInitialized()
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const { limit, offset = 0, filter } = options
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const { limit, offset = 0, filter } = options // cursor intentionally not extracted (not yet implemented)
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const collectedNouns: HNSWNounWithMetadata[] = []
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const targetCount = offset + limit // Early termination target
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@ -1188,7 +1188,7 @@ export abstract class BaseStorage extends BaseStorageAdapter {
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// Apply pagination (v5.5.0: Efficient slicing after early termination)
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const paginatedNouns = collectedNouns.slice(offset, offset + limit)
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const hasMore = collectedNouns.length >= targetCount
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const hasMore = collectedNouns.length > targetCount // v5.7.11: Fixed >= to > (was causing infinite loop)
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return {
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items: paginatedNouns,
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@ -1218,7 +1218,7 @@ export abstract class BaseStorage extends BaseStorageAdapter {
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public async getVerbsWithPagination(options: {
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limit: number
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offset: number
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cursor?: string
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cursor?: string // v5.7.11: Currently ignored (offset-based pagination). Cursor support planned for v5.8.0
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filter?: {
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verbType?: string | string[]
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sourceId?: string | string[]
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@ -1234,7 +1234,7 @@ export abstract class BaseStorage extends BaseStorageAdapter {
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}> {
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await this.ensureInitialized()
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const { limit, offset = 0, filter } = options
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const { limit, offset = 0, filter } = options // cursor intentionally not extracted (not yet implemented)
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const collectedVerbs: HNSWVerbWithMetadata[] = []
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const targetCount = offset + limit // Early termination target
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@ -1302,7 +1302,7 @@ export abstract class BaseStorage extends BaseStorageAdapter {
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// Apply pagination (v5.5.0: Efficient slicing after early termination)
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const paginatedVerbs = collectedVerbs.slice(offset, offset + limit)
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const hasMore = collectedVerbs.length >= targetCount
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const hasMore = collectedVerbs.length > targetCount // v5.7.11: Fixed >= to > (was causing infinite loop)
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return {
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items: paginatedVerbs,
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@ -1628,7 +1628,7 @@ export abstract class BaseStorage extends BaseStorageAdapter {
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// Apply pagination (slice for offset)
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const paginatedVerbs = collectedVerbs.slice(offset, offset + limit)
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const hasMore = collectedVerbs.length >= targetCount
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const hasMore = collectedVerbs.length > targetCount // v5.7.11: Fixed >= to > (was causing infinite loop)
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return {
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items: paginatedVerbs,
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@ -64,10 +64,13 @@ export async function rebuildCounts(storage: BaseStorage): Promise<RebuildCounts
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}
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let hasMore = true
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let cursor: string | undefined
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let offset = 0 // v5.7.11: Use offset-based pagination instead of cursor (bug fix for infinite loop)
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while (hasMore) {
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const result: any = await storageWithPagination.getNounsWithPagination({ limit: 100, cursor })
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const result: any = await storageWithPagination.getNounsWithPagination({
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limit: 100,
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offset // v5.7.11: Pass offset for proper pagination (previously passed cursor which was ignored)
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})
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for (const noun of result.items) {
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const metadata = await storage.getNounMetadata(noun.id)
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@ -79,7 +82,7 @@ export async function rebuildCounts(storage: BaseStorage): Promise<RebuildCounts
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}
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hasMore = result.hasMore
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cursor = result.nextCursor
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offset += 100 // v5.7.11: Increment offset for next page
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}
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console.log(` Found ${totalNouns} entities across ${entityCounts.size} types`)
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@ -92,10 +95,13 @@ export async function rebuildCounts(storage: BaseStorage): Promise<RebuildCounts
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}
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hasMore = true
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cursor = undefined
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offset = 0 // v5.7.11: Reset offset for verbs pagination
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while (hasMore) {
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const result: any = await storageWithPagination.getVerbsWithPagination({ limit: 100, cursor })
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const result: any = await storageWithPagination.getVerbsWithPagination({
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limit: 100,
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offset // v5.7.11: Pass offset for proper pagination (previously passed cursor which was ignored)
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})
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for (const verb of result.items) {
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if (verb.verb) {
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@ -106,7 +112,7 @@ export async function rebuildCounts(storage: BaseStorage): Promise<RebuildCounts
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}
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hasMore = result.hasMore
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cursor = result.nextCursor
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offset += 100 // v5.7.11: Increment offset for next page
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}
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console.log(` Found ${totalVerbs} relationships across ${verbCounts.size} types`)
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