add error handling and connection pool close to gcs.go

Author: Slach

pkg/storage/gcs.go

@@ -120,6 +120,7 @@ func (gcs *GCS) Connect(ctx context.Context) error {
 }
 
 func (gcs *GCS) Close(ctx context.Context) error {
+	gcs.clientPool.Close(ctx)
 	return gcs.client.Close()
 }
 
@@ -174,10 +175,14 @@ func (gcs *GCS) GetFileReader(ctx context.Context, key string) (io.ReadCloser, e
 	obj := pClient.Bucket(gcs.Config.Bucket).Object(path.Join(gcs.Config.Path, key))
 	reader, err := obj.NewReader(ctx)
 	if err != nil {
-		gcs.clientPool.InvalidateObject(ctx, pClientObj)
+		if pErr := gcs.clientPool.InvalidateObject(ctx, pClientObj); pErr != nil {
+			log.Warnf("GetFileReader: gcs.clientPool.InvalidateObject error: %v ", pErr)
+		}
 		return nil, err
 	}
-	gcs.clientPool.ReturnObject(ctx, pClientObj)
+	if pErr := gcs.clientPool.ReturnObject(ctx, pClientObj); pErr != nil {
+		log.Warnf("GetFileReader: gcs.clientPool.ReturnObject error: %v ", pErr)
+	}
 	return reader, nil
 }
 
@@ -202,14 +207,17 @@ func (gcs *GCS) PutFile(ctx context.Context, key string, r io.ReadCloser) error
 	}
 	defer func() {
 		if err := writer.Close(); err != nil {
-			log.Warnf("can't close writer: %+v", err)
-			gcs.clientPool.InvalidateObject(ctx, pClientObj)
-
+			log.Warnf("gcs.PutFile: can't close writer: %+v", err)
+			if err = gcs.clientPool.InvalidateObject(ctx, pClientObj); err != nil {
+				log.Warnf("gcs.PutFile: gcs.clientPool.InvalidateObject error: %+v", err)
+			}
 			return
 		}
-		gcs.clientPool.ReturnObject(ctx, pClientObj)
+		if err = gcs.clientPool.ReturnObject(ctx, pClientObj); err != nil {
+			log.Warnf("gcs.PutFile: gcs.clientPool.ReturnObject error: %+v", err)
+		}
 	}()
-	buffer := make([]byte, 512*1024)
+	buffer := make([]byte, 128*1024)
 	_, err = io.CopyBuffer(writer, r, buffer)
 	return err
 }
@@ -239,10 +247,14 @@ func (gcs *GCS) deleteKey(ctx context.Context, key string) error {
 	object := pClient.Bucket(gcs.Config.Bucket).Object(key)
 	err = object.Delete(ctx)
 	if err != nil {
-		gcs.clientPool.InvalidateObject(ctx, pClientObj)
+		if pErr := gcs.clientPool.InvalidateObject(ctx, pClientObj); pErr != nil {
+			log.Warnf("gcs.deleteKey: gcs.clientPool.InvalidateObject error: %+v", pErr)
+		}
 		return err
 	}
-	gcs.clientPool.ReturnObject(ctx, pClientObj)
+	if pErr := gcs.clientPool.ReturnObject(ctx, pClientObj); pErr != nil {
+		log.Warnf("gcs.deleteKey: gcs.clientPool.ReturnObject error: %+v", pErr)
+	}
 	return nil
 }
 
@@ -268,15 +280,21 @@ func (gcs *GCS) CopyObject(ctx context.Context, srcBucket, srcKey, dstKey string
 	dst := pClient.Bucket(gcs.Config.Bucket).Object(dstKey)
 	attrs, err := src.Attrs(ctx)
 	if err != nil {
-		gcs.clientPool.InvalidateObject(ctx, pClientObj)
+		if pErr := gcs.clientPool.InvalidateObject(ctx, pClientObj); pErr != nil {
+			log.Warnf("gcs.CopyObject: gcs.clientPool.InvalidateObject error: %+v", pErr)
+		}
 		return 0, err
 	}
 	if _, err = dst.CopierFrom(src).Run(ctx); err != nil {
-		gcs.clientPool.InvalidateObject(ctx, pClientObj)
+		if pErr := gcs.clientPool.InvalidateObject(ctx, pClientObj); pErr != nil {
+			log.Warnf("gcs.CopyObject: gcs.clientPool.InvalidateObject error: %+v", pErr)
+		}
 		return 0, err
 	}
 	log.Debugf("GCS->CopyObject %s/%s -> %s/%s", srcBucket, srcKey, gcs.Config.Bucket, dstKey)
-	gcs.clientPool.ReturnObject(ctx, pClientObj)
+	if pErr := gcs.clientPool.ReturnObject(ctx, pClientObj); pErr != nil {
+		log.Warnf("gcs.CopyObject: gcs.clientPool.ReturnObject error: %+v", pErr)
+	}
 	return attrs.Size, nil
 }