retry delete fileId

weed/operation/delete_content.go

@@ -26,12 +26,14 @@ func DeleteFile(master string, fileId string, jwt security.EncodedJwt) error {
 	if err != nil {
 		return fmt.Errorf("Failed to lookup %s:%v", fileId, err)
 	}
+	for i := 0; i < 5; i++ {
 		err = util.Delete(fileUrl, jwt)
-	if err != nil {
-		return fmt.Errorf("Failed to delete %s:%v", fileUrl, err)
-	}
+		if err == nil {
 			return nil
 		}
+	}
+	return fmt.Errorf("Failed to delete %s:%v", fileUrl, err)
+}
 
 func ParseFileId(fid string) (vid string, key_cookie string, err error) {
 	commaIndex := strings.Index(fid, ",")