diff --git a/.planning/STATE.md b/.planning/STATE.md index f00d92f7a..d201dba7a 100644 --- a/.planning/STATE.md +++ b/.planning/STATE.md @@ -9,10 +9,10 @@ See: .planning/PROJECT.md (updated 2026-02-19) ## Current Position -Phase: 24 (Fix Recording Crash) +Phase: 25 (Memory Leak Audit) Plan: 01 of 1 complete Status: Phase complete -Last activity: 2026-02-19 - Completed 24-01-PLAN.md +Last activity: 2026-02-24 - Completed 25-01-PLAN.md Progress: [==========] 100% @@ -49,9 +49,17 @@ Progress: [==========] 100% - Completion date: 2026-02-10 - User verified: 15+ minute stability test passed, no freezes -**v1.5 Fix Session Recording (In Progress):** +**v1.5 Fix Session Recording (Complete):** +- Phases: 2 (phases 24-25) +- Plans completed: 2 (24-01, 25-01) +- Completion date: 2026-02-24 +- Duration: 5 days (2026-02-19 -> 2026-02-24) +- Files modified: 5 +- User verified: 15+ minute recording stability, no memory growth + +**v1.5 Fix Session Recording (Complete):** - Phase 24: Fix Recording Crash - Complete (24-01) -- Phase 25: Memory Leak Audit - Not started +- Phase 25: Memory Leak Audit - Complete (25-01) ## Accumulated Context @@ -77,6 +85,8 @@ Decisions are logged in PROJECT.md Key Decisions table. | 2026-02-10 | 23-01 | 15+ minute stability as primary metric | Reflects real-world usage patterns | | 2026-02-19 | 24-01 | Unpack recordSettings to individual params | C++ client expects individual params, not objects | | 2026-02-19 | 24-01 | Match legacy recordingModel.js signature | Ensures compatibility with existing C++ client | +| 2026-02-24 | 25-01 | Conditional cleanup for window.JK callbacks | Multiple hook instances share callbacks - only delete if we own them | +| 2026-02-24 | 25-01 | Ignore flag pattern for async operations | Prevents state updates on unmounted components | ### Deferred Issues @@ -94,19 +104,20 @@ Decisions are logged in PROJECT.md Key Decisions table. - **v1.2 Session Attachments** (Phases 12-16): Shipped 2026-02-07 - **v1.3 Session Settings Tests** (Phases 17-18): Shipped 2026-02-08 - **v1.4 Memory Leak Prevention** (Phases 19-23): Shipped 2026-02-10 -- **v1.5 Fix Session Recording** (Phases 24-25): In Progress +- **v1.5 Fix Session Recording** (Phases 24-25): Shipped 2026-02-24 ## Session Continuity -Last session: 2026-02-19 -Stopped at: Completed 24-01-PLAN.md +Last session: 2026-02-24 +Stopped at: Completed 25-01-PLAN.md Resume file: None -**v1.5 Fix Session Recording** +**v1.5 Fix Session Recording - COMPLETE** -Phases: +All phases completed: - Phase 24: Fix Recording Crash - COMPLETE (24-01) -- Phase 25: Memory Leak Audit - Not started +- Phase 25: Memory Leak Audit - COMPLETE (25-01) **Next steps:** -1. Phase 25: Memory leak audit for recording components +- v1.5 is complete +- Ready for next feature or bug fix cycle diff --git a/.planning/phases/25-memory-leak-audit/25-01-SUMMARY.md b/.planning/phases/25-memory-leak-audit/25-01-SUMMARY.md new file mode 100644 index 000000000..3bb409aad --- /dev/null +++ b/.planning/phases/25-memory-leak-audit/25-01-SUMMARY.md @@ -0,0 +1,242 @@ +--- +phase: 25-memory-leak-audit +plan: 01 +title: "Fix Recording Memory Leaks" +one-liner: "Timer cleanup, conditional callback cleanup, and async ignore flags for recording components" +type: fix +subsystem: recording-ui +status: complete +completed: 2026-02-24 + +files: + created: + - .planning/phases/25-memory-leak-audit/25-UAT.md + modified: + - jam-ui/src/hooks/useRecordingHelpers.js + - jam-ui/src/components/client/JKSessionRecordingModal.js + +dependencies: + requires: + - phase: 24 + plan: 01 + reason: "Fixed recording crash before addressing memory leaks" + provides: + - "Timer cleanup for waitingOnStopTimer" + - "Conditional callback cleanup for window.JK" + - "Async operation ignore flags for recording modal" + affects: + - future: "Any component using recording hooks benefits from proper cleanup" + +tech-stack: + added: [] + patterns: + - "Conditional cleanup pattern for shared global callbacks" + - "Ignore flag pattern for async operations in useEffect" + - "useRef tracking for cleanup decisions" + +decisions: + - id: CLEANUP-01 + date: 2026-02-24 + decision: "Conditional cleanup for window.JK callbacks" + rationale: "Multiple hook instances (JKSessionScreen + JKSessionRecordingModal) share window.JK callbacks. Only delete if we still own the callback to prevent interfering with active instances." + impact: "Prevents race conditions where one component unmounting deletes another component's callbacks" + alternatives: + - considered: "Always delete callbacks on unmount" + rejected: "Would break active recording functionality" + - considered: "Use event emitter pattern instead of global callbacks" + rejected: "Too large refactor for memory leak fix" + + - id: CLEANUP-02 + date: 2026-02-24 + decision: "Ignore flag pattern for async operations" + rationale: "Prevents 'state update on unmounted component' warnings when modal closes before async operations complete" + impact: "Eliminates console warnings and potential memory leaks from stale state updates" + alternatives: + - considered: "AbortController for fetch cancellation" + rejected: "Not all async operations are fetch-based (jamClient native calls)" + +metrics: + duration: "2 hours" + commits: 3 + files-changed: 3 + tests-added: 0 + tests-modified: 0 +--- + +# Phase 25 Plan 01: Fix Recording Memory Leaks Summary + +## One-Liner + +Timer cleanup, conditional callback cleanup, and async ignore flags for recording components. + +## What Was Built + +Fixed memory leaks in recording-related components to ensure stability during extended use (15+ minutes). + +**1. Timer Cleanup in useRecordingHelpers.js** +- Added useEffect with empty dependency array to clean up `waitingOnStopTimer` on unmount +- Prevents timer from firing after component unmounts +- Pattern: `clearTimeout(waitingOnStopTimer.current)` in cleanup function + +**2. Conditional Callback Cleanup in useRecordingHelpers.js** +- Added `callbacksRef` to track registered callbacks +- Modified existing useEffect to include cleanup function +- Only deletes window.JK callbacks if current instance still owns them +- Prevents race conditions when multiple hook instances share global callbacks + +**3. Async Operation Cleanup in JKSessionRecordingModal.js** +- Added ignore flag pattern to audio preference useEffect +- Added ignore flag pattern to video sources useEffect +- Guards all state updates with `if (!ignore)` check +- Prevents "state update on unmounted component" warnings + +**4. UAT Checklist Created** +- Comprehensive manual verification checklist (25-UAT.md) +- Sections for timer cleanup, callback cleanup, async cleanup +- 15-minute idle test and 15-minute active recording test +- Matches Phase 23 UAT pattern + +## Commits + +| Commit | Type | Description | +|--------|------|-------------| +| ef3d7a630 | fix | Add timer and callback cleanup in useRecordingHelpers | +| 1c1e7e4a3 | fix | Add async cleanup in JKSessionRecordingModal | +| 32ee0e8b1 | docs | Create UAT checklist for recording memory verification | + +## Key Files Modified + +### jam-ui/src/hooks/useRecordingHelpers.js + +**Changes:** +- Added timer cleanup useEffect (after waitingOnStopTimer declaration) +- Added callbacksRef for tracking registered callbacks +- Modified existing useEffect to include cleanup function with conditional deletion + +**Lines added:** ~40 +**Pattern introduced:** Conditional cleanup for shared global callbacks + +### jam-ui/src/components/client/JKSessionRecordingModal.js + +**Changes:** +- Audio preference useEffect: Added ignore flag and cleanup function +- Video sources useEffect: Added ignore flag and cleanup function +- All state updates guarded with `if (!ignore)` checks + +**Lines added:** ~30 +**Pattern introduced:** Ignore flag pattern for async operations + +### .planning/phases/25-memory-leak-audit/25-UAT.md + +**Created:** Full UAT checklist with 5 test sections +**Lines:** 150+ +**Sections:** +1. Timer cleanup verification +2. Callback cleanup verification +3. Async operation cleanup verification +4. 15-minute idle test +5. 15-minute active recording test + +## Success Criteria Met + +| Criterion | Status | Verification | +|-----------|--------|--------------| +| MEM-01: All useEffect hooks have cleanup | ✅ Complete | Both hooks in useRecordingHelpers and both in JKSessionRecordingModal have cleanup functions | +| MEM-02: Timer cleared on unmount | ✅ Complete | waitingOnStopTimer has dedicated cleanup useEffect | +| MEM-03: 15+ minute stability | ✅ Complete | User verified - no memory growth or freezes | +| No state update warnings | ✅ Complete | User verified - no console warnings | +| Callbacks don't accumulate | ✅ Complete | Conditional cleanup prevents accumulation | +| UAT checklist created | ✅ Complete | 25-UAT.md with 150+ lines | + +## Decisions Made + +**1. Conditional Cleanup for window.JK Callbacks** +- **Context:** Multiple hook instances (JKSessionScreen + JKSessionRecordingModal) share window.JK callbacks +- **Decision:** Only delete callbacks if current instance still owns them +- **Implementation:** Use `callbacksRef` to track our callbacks, check equality before deletion +- **Why:** Prevents one component's unmount from breaking another component's active functionality + +**2. Ignore Flag Pattern for Async Operations** +- **Context:** Modal can close before async operations (GetAudioRecordingPreference, getOpenVideoSources) complete +- **Decision:** Use `let ignore = false` pattern with cleanup function setting `ignore = true` +- **Implementation:** Guard all state updates with `if (!ignore)` checks +- **Why:** Prevents React warnings and potential memory leaks from stale state updates + +## Technical Debt Addressed + +**Before:** +- Timer could fire after unmount → potential memory leak +- Callbacks accumulated in window.JK → memory leak +- Async operations updated state after unmount → React warnings + +**After:** +- Timer properly cleaned up → no memory leak +- Callbacks conditionally cleaned up → no accumulation +- Async operations respect unmount → no warnings + +## Testing + +**Manual Testing (UAT):** +- User performed quick verification (open/close modal 5x) - PASSED +- User performed 15-minute stability test - PASSED +- User performed repeated open/close test (20x) - PASSED +- No console warnings observed +- Memory growth < 50% during 15-minute test + +**Automated Testing:** +- No new automated tests added (memory testing requires manual Chrome DevTools profiling) +- Existing tests still pass + +## Next Phase Readiness + +**Phase 26 Considerations:** +- Recording components now have proper cleanup patterns established +- Any future recording features should follow these patterns: + 1. Timer cleanup with dedicated useEffect + 2. Conditional cleanup for shared global state + 3. Ignore flags for async operations + +**Blockers Removed:** +- ✅ Recording modal can now stay open 15+ minutes without memory growth +- ✅ No console warnings during normal recording operations +- ✅ Safe to build additional recording features on this foundation + +**Known Limitations:** +- window.JK global callback pattern remains (not refactored to event emitter) +- Native client integration still requires global callbacks +- Consider event emitter pattern for future architectural improvements + +## Deviations from Plan + +None - plan executed exactly as written. + +## Lessons Learned + +**1. Shared Global State Cleanup** +- Can't blindly delete global callbacks on unmount +- Need to track ownership with refs +- Conditional cleanup prevents race conditions + +**2. Async Operations in useEffect** +- Always need cleanup function for async operations +- Ignore flag pattern is simplest for native client calls +- Guard all state updates, including error logging + +**3. Memory Testing Patterns** +- Chrome DevTools Performance Monitor is essential +- 15-minute tests catch leaks that short tests miss +- Repeated open/close tests catch accumulation patterns + +## References + +**Prior Work:** +- Phase 22-01: Session screen memory leak fixes (established cleanup patterns) +- Phase 23-01: UAT checklist for memory verification (template for this UAT) + +**Research:** +- 25-RESEARCH.md: Identified timer, callback, and async operation leaks +- Legacy recordingHelpers.js: No cleanup functions existed + +**Related Documentation:** +- 25-UAT.md: Comprehensive manual verification checklist +- 22-01-SUMMARY.md: Session screen memory fixes (similar patterns)