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Fix database locked errors (#3153)

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* Make read-only operations use WithReadTxn
* Allow one database write thread
* Add unit test for concurrent transactions
* Perform some actions after commit to release txn
* Suppress some errors from cancelled context
This commit is contained in:
WithoutPants
2022-11-21 06:49:10 +11:00
committed by GitHub
parent 420c6fa9d7
commit f39fa416a9
54 changed files with 626 additions and 311 deletions
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4
pkg/scraper/cache.go
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@@ -350,7 +350,7 @@ func (c Cache) ScrapeID(ctx context.Context, scraperID string, id int, ty Scrape
func (c Cache) getScene(ctx context.Context, sceneID int) (*models.Scene, error) {
var ret *models.Scene
if err := txn.WithTxn(ctx, c.txnManager, func(ctx context.Context) error {
if err := txn.WithReadTxn(ctx, c.txnManager, func(ctx context.Context) error {
var err error
ret, err = c.repository.SceneFinder.Find(ctx, sceneID)
return err
@@ -362,7 +362,7 @@ func (c Cache) getScene(ctx context.Context, sceneID int) (*models.Scene, error)
func (c Cache) getGallery(ctx context.Context, galleryID int) (*models.Gallery, error) {
var ret *models.Gallery
if err := txn.WithTxn(ctx, c.txnManager, func(ctx context.Context) error {
if err := txn.WithReadTxn(ctx, c.txnManager, func(ctx context.Context) error {
var err error
ret, err = c.repository.GalleryFinder.Find(ctx, galleryID)