Enable WAL for SQLite (#13897)

Signed-off-by: Lorenzo Manacorda <lorenzo@mailbox.org>
2022-10-25 11:22:55 +02:00 · 2022-10-25 11:22:55 +02:00 · 8c94dd3a27
parent 19c0e55ef7
commit 8c94dd3a27
2 changed files with 5 additions and 0 deletions
--- a/changelog.d/13897.feature
+++ b/changelog.d/13897.feature
@ -0,0 +1 @@
+Enable Write-Ahead Logging for SQLite installs. Contributed by [asymmetric](https://github.com/asymmetric).
--- a/synapse/storage/engines/sqlite.py
+++ b/synapse/storage/engines/sqlite.py
@ -88,6 +88,10 @@ class Sqlite3Engine(BaseDatabaseEngine[sqlite3.Connection, sqlite3.Cursor]):

        db_conn.create_function("rank", 1, _rank)
        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()

    def is_deadlock(self, error: Exception) -> bool:
				`@ -0,0 +1 @@`
				`Enable Write-Ahead Logging for SQLite installs. Contributed by [asymmetric](https://github.com/asymmetric).`