diff --git a/br/pkg/restore/client.go b/br/pkg/restore/client.go
index 6f91a3b4deffc..e218ca7b014bc 100644
--- a/br/pkg/restore/client.go
+++ b/br/pkg/restore/client.go
@@ -2043,19 +2043,21 @@ func (rc *Client) RestoreKVFiles(
 			log.Debug("skip file due to table id not matched", zap.Int64("table-id", files[0].TableId))
 			skipFile += len(files)
 		} else {
-			rc.workerPool.ApplyOnErrorGroup(eg, func() error {
+			rc.workerPool.ApplyOnErrorGroup(eg, func() (err error) {
 				fileStart := time.Now()
 				defer func() {
 					onProgress(int64(len(files)))
 					updateStats(uint64(kvCount), size)
 					summary.CollectInt("File", len(files))
 
-					filenames := make([]string, 0, len(files))
-					for _, f := range files {
-						filenames = append(filenames, f.Path+", ")
+					if err == nil {
+						filenames := make([]string, 0, len(files))
+						for _, f := range files {
+							filenames = append(filenames, f.Path+", ")
+						}
+						log.Info("import files done", zap.Int("batch-count", len(files)), zap.Uint64("batch-size", size),
+							zap.Duration("take", time.Since(fileStart)), zap.Strings("files", filenames))
 					}
-					log.Info("import files done", zap.Int("batch-count", len(files)), zap.Uint64("batch-size", size),
-						zap.Duration("take", time.Since(fileStart)), zap.Strings("files", filenames))
 				}()
 
 				return rc.fileImporter.ImportKVFiles(ectx, files, rule, rc.shiftStartTS, rc.startTS, rc.restoreTS, supportBatch)
@@ -2063,14 +2065,14 @@ func (rc *Client) RestoreKVFiles(
 		}
 	}
 
-	if supportBatch {
-		err = ApplyKVFilesWithBatchMethod(ectx, iter, int(pitrBatchCount), uint64(pitrBatchSize), applyFunc)
-	} else {
-		err = ApplyKVFilesWithSingelMethod(ectx, iter, applyFunc)
-	}
-	if err != nil {
+	rc.workerPool.ApplyOnErrorGroup(eg, func() error {
+		if supportBatch {
+			err = ApplyKVFilesWithBatchMethod(ectx, iter, int(pitrBatchCount), uint64(pitrBatchSize), applyFunc)
+		} else {
+			err = ApplyKVFilesWithSingelMethod(ectx, iter, applyFunc)
+		}
 		return errors.Trace(err)
-	}
+	})
 
 	log.Info("total skip files due to table id not matched", zap.Int("count", skipFile))
 	if skipFile > 0 {
diff --git a/br/pkg/task/restore.go b/br/pkg/task/restore.go
index 903b721f0a644..8a5cd0425e221 100644
--- a/br/pkg/task/restore.go
+++ b/br/pkg/task/restore.go
@@ -393,7 +393,8 @@ func (cfg *RestoreConfig) adjustRestoreConfigForStreamRestore() {
 	if cfg.PitrBatchSize == 0 {
 		cfg.PitrBatchSize = defaultPiTRBatchSize
 	}
-
+	// another goroutine is used to iterate the backup file
+	cfg.PitrConcurrency += 1
 	log.Info("set restore kv files concurrency", zap.Int("concurrency", int(cfg.PitrConcurrency)))
 	cfg.Config.Concurrency = cfg.PitrConcurrency
 }