优化结构

internal/integration/storage/compose.go

@@ -43,6 +43,14 @@ func composeStreams(
 		errCh <- nil
 	}()
 	putErr := put(ctx, destination, reader)
+	// A failed destination may stop reading before the producer reaches EOF.
+	// Close the pipe reader in that case so the producer's next write returns
+	// instead of leaving the goroutine blocked forever.
+	if putErr != nil {
+		_ = reader.CloseWithError(putErr)
+	} else {
+		_ = reader.Close()
+	}
 	composeErr := <-errCh
 	if putErr != nil {
 		_ = remove(ctx, destination)