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feat: switch SQLite to WAL mode and disable Btrfs CoW for data directory
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- Change SQLite journal mode from DELETE to WAL for better concurrency
- Add chattr +C to /var/lib/aitbc in setup.sh to disable Btrfs Copy-on-Write
- Add fallback logging when chattr is unavailable or fails
- Prevent SQLite corruption on Btrfs filesystems by ensuring overwrite-in-place behavior
This commit is contained in:
aitbc
2026-04-21 22:00:47 +02:00
parent be48ec8a1b
commit 054adaf7be
3 changed files with 77 additions and 1 deletions
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apps/blockchain-node/src/aitbc_chain/database.py
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@@ -24,7 +24,7 @@ _engine = create_engine(f"sqlite:///{settings.db_path}", echo=False)
@event.listens_for(_engine, "connect")
def set_sqlite_pragma(dbapi_connection, connection_record):
cursor = dbapi_connection.cursor()
cursor.execute("PRAGMA journal_mode=DELETE")
cursor.execute("PRAGMA journal_mode=WAL")
cursor.execute("PRAGMA synchronous=NORMAL")
cursor.execute("PRAGMA cache_size=-64000")
cursor.execute("PRAGMA temp_store=MEMORY")