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* 🧯 fix: Harden Principals Cache Invalidation and Lock-Wait Paths Follow-up hardening for the group-membership principals cache: - Coalesce deferred transactional invalidations into one session `ended` listener so many membership writes in a transaction cannot trip the emitter's max-listeners warning - Re-attempt the build lock inside the lock-wait poll so readers take over when the holder skips its write (invalidated away, failed, or crashed) instead of stalling for the full wait budget - Read cache builds from the primary so secondaryPreferred deployments cannot pin a lagging secondary's pre-mutation memberships for the TTL - Decouple the delayed stale-rewrite eviction pass from build locking via a crossProcess store marker, so USER_PRINCIPALS_LOCK_TTL_MS=0 disables locking only - Treat aggregation-pipeline bulk updates touching memberIds as indeterminate (namespace clear) instead of silently skipping invalidation * ⏲️ fix: Floor the Stale-Eviction Delay for Lockless Cache Builds The second invalidation pass ran at only 500ms when build locking is disabled (USER_PRINCIPALS_LOCK_TTL_MS=0), so a cross-container build slower than that could still re-cache revoked memberships until the TTL. The store now supplies an explicit staleEvictionDelayMs (lock wait plus one build round-trip, floored at 3s), keeping the default locked budget unchanged. |
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