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Claude
7bd957c3c4
Audit follow-ups on the sync engine:
- Perf: syncGroup reconciled against a full store.query<Event>(filter),
decoding the entire local matched set (~1 KB/event) just to read ids +
created_at and to index events for a small residual upload. Reconcile now
uses store.snapshotIdsForNegentropy (id + created_at only, ~40 B/entry) and
the uploader fetches only the residual haves by id. Peak memory drops from
O(all local matches) to O(residual) — matters when a relay hosts a large set.
- Bug: sync() promised best-effort ("one bad relay can't abort the set") but
syncGroup only caught NegentropySyncException, so any other failure (store
I/O, an unexpected throw) escaped async and cancelled every other relay via
awaitAll. Each group now runs under a guard that records the failure instead.
- Bug: the page-fallback catch (Exception) swallowed CancellationException,
breaking cooperative cancellation. Both new catch sites rethrow it.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01TdEvjsZ81XuUtdJsVzmHxt