Add _txlock=immediate to SQLite DSN for better concurrency

Copilot · cschleiden · cschleiden · commit 8398f17c17e4 · 2025-10-24T10:21:58.000-07:00
Co-authored-by: cschleiden &lt;2201819+cschleiden@users.noreply.github.com&gt;
diff --git a/backend/sqlite/sqlite.go b/backend/sqlite/sqlite.go
@@ -33,7 +33,7 @@ var migrationsFS embed.FS
 
 func NewInMemoryBackend(opts ...option) *sqliteBackend {
 	// Use a unique named in-memory database
-	dsn := fmt.Sprintf("file:%s?mode=memory&cache=shared", uuid.NewString())
+	dsn := fmt.Sprintf("file:%s?mode=memory&cache=shared&_txlock=immediate", uuid.NewString())
 	b := newSqliteBackend(dsn, opts...)
 
 	b.db.SetConnMaxIdleTime(0)
@@ -52,7 +52,7 @@ func NewInMemoryBackend(opts ...option) *sqliteBackend {
 }
 
 func NewSqliteBackend(path string, opts ...option) *sqliteBackend {
-	return newSqliteBackend(fmt.Sprintf("file:%v", path), opts...)
+	return newSqliteBackend(fmt.Sprintf("file:%v?_txlock=immediate", path), opts...)
 }
 
 func newSqliteBackend(dsn string, opts ...option) *sqliteBackend {

Original file line number	Diff line number	Diff line change
`@@ -33,7 +33,7 @@ var migrationsFS embed.FS`
`33`	`33`
`34`	`34`	`func NewInMemoryBackend(opts ...option) *sqliteBackend {`
`35`	`35`	`// Use a unique named in-memory database`
`36`		`- dsn := fmt.Sprintf("file:%s?mode=memory&cache=shared", uuid.NewString())`
	`36`	`+ dsn := fmt.Sprintf("file:%s?mode=memory&cache=shared&_txlock=immediate", uuid.NewString())`
`37`	`37`	`b := newSqliteBackend(dsn, opts...)`
`38`	`38`
`39`	`39`	`b.db.SetConnMaxIdleTime(0)`
`@@ -52,7 +52,7 @@ func NewInMemoryBackend(opts ...option) *sqliteBackend {`
`52`	`52`	`}`
`53`	`53`
`54`	`54`	`func NewSqliteBackend(path string, opts ...option) *sqliteBackend {`
`55`		`- return newSqliteBackend(fmt.Sprintf("file:%v", path), opts...)`
	`55`	`+ return newSqliteBackend(fmt.Sprintf("file:%v?_txlock=immediate", path), opts...)`
`56`	`56`	`}`
`57`	`57`
`58`	`58`	`func newSqliteBackend(dsn string, opts ...option) *sqliteBackend {`