mirror of
https://github.com/bytedance/deer-flow.git
synced 2026-09-25 14:06:18 +00:00
36b124c7fc
* fix(persistence): drain alembic workers across cancellation * docs(persistence): clarify alembic cancellation ownership * docs(persistence): align alembic helper ownership contract * fix(persistence): restore docstring underline
8 lines
1007 B
Markdown
8 lines
1007 B
Markdown
# Persistence lifecycle
|
|
|
|
Postgres bootstrap owns its session-scoped advisory lock until `pg_advisory_unlock` completes. Drain that unlock across host cancellation before leaving the SQLAlchemy connection context; repeated cancellation must not return a pooled session while it still holds the bootstrap mutex. Ordinary database errors remain best-effort and are logged.
|
|
|
|
When `database.postgres_schema` is configured, both async ORM connections and the synchronous SQLAlchemy connections used by DB-backed custom agents and managed subagents must use the same `search_path`; preserve this invariant when adding another persistence entry point.
|
|
|
|
Alembic stamp/upgrade workers started inside `bootstrap_schema()` remain owned by the bootstrap critical section until the worker finishes. Drain those `asyncio.to_thread()` calls across host cancellation before releasing the in-process SQLite bootstrap lock or PostgreSQL advisory lock; otherwise another bootstrap can overlap a still-running migration worker.
|