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Enable WAL for SQLite (#13897)

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Signed-off-by: Lorenzo Manacorda <lorenzo@mailbox.org>
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asymmetric 2022-10-25 11:22:55 +02:00 committed by GitHub
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changelog.d/13897.feature Normal file
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@ -0,0 +1 @@
Enable Write-Ahead Logging for SQLite installs. Contributed by [asymmetric](https://github.com/asymmetric).

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synapse/storage/engines/sqlite.py
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@ -88,6 +88,10 @@ class Sqlite3Engine(BaseDatabaseEngine[sqlite3.Connection, sqlite3.Cursor]):
db_conn.create_function("rank", 1, _rank) db_conn.create_function("rank", 1, _rank)
db_conn.execute("PRAGMA foreign_keys = ON;") db_conn.execute("PRAGMA foreign_keys = ON;")
# Enable WAL.
# see https://www.sqlite.org/wal.html
db_conn.execute("PRAGMA journal_mode = WAL;")
db_conn.commit() db_conn.commit()
def is_deadlock(self, error: Exception) -> bool: def is_deadlock(self, error: Exception) -> bool: