Anti-patterns · #3
SQLite Under Concurrency
- Symptom
- Write locks serialize everything. Timeouts under load. Session bleeding.
- Fix
- AsyncPostgresSaver. Compose thread IDs as user×session.
- Origin
- Introduced at L4
- Cross-link
- An L4 anti-pattern that bites L2 hardest — every checkpointed workflow eventually outgrows SQLite.
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