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Keep notification acknowledgements responsive under snapshot contention #440

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timmy merged 1 commits from timmy/439-notification-snapshot-batch into main 2026-08-10 01:16:03 +00:00
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timmy commented 2026-08-10 01:14:43 +00:00
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Closes #439

Product improvement

  • moves confirmed notification snapshot maintenance off the async event loop
  • collapses successful bulk acknowledgements into one SQLite transaction and one revision advance
  • preserves process-local filtering and stale-refresh suppression when shared cache maintenance is contended

Verification

  • RED: missing batch store API
  • RED: snapshot maintenance delayed the event-loop heartbeat
  • RED: partial bulk success produced two store writes instead of one
  • GREEN: python3 -m pytest tests/test_live_snapshot_store.py tests/test_notification_read.py -q (17 passed)
  • FULL: python3 -m pytest -q (852 passed)
Closes #439 ## Product improvement - moves confirmed notification snapshot maintenance off the async event loop - collapses successful bulk acknowledgements into one SQLite transaction and one revision advance - preserves process-local filtering and stale-refresh suppression when shared cache maintenance is contended ## Verification - RED: missing batch store API - RED: snapshot maintenance delayed the event-loop heartbeat - RED: partial bulk success produced two store writes instead of one - GREEN: `python3 -m pytest tests/test_live_snapshot_store.py tests/test_notification_read.py -q` (17 passed) - FULL: `python3 -m pytest -q` (852 passed)
timmy added 1 commit 2026-08-10 01:14:44 +00:00
perf: batch notification snapshot maintenance (#439)
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timmy merged commit cd9f40a1c4 into main 2026-08-10 01:16:03 +00:00
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Reference: stackchain/stackchain-dashboard#440