diff --git a/src/Helpers/MasterHelper.cs b/src/Helpers/MasterHelper.cs
index b6c109a..10dd71d 100644
--- a/src/Helpers/MasterHelper.cs
+++ b/src/Helpers/MasterHelper.cs
@@ -133,14 +133,15 @@ namespace iFileProxy.Helpers
             byte[] hash = [];
             if (File.Exists(fileName))
             {
+                using FileStream fileStream = File.OpenRead(fileName);
                 hash = algorithm switch
                 {
-                    FileHashAlgorithm.MD5 => MD5.HashData(File.ReadAllBytes(fileName)),
-                    FileHashAlgorithm.SHA1 => SHA1.HashData(File.ReadAllBytes(fileName)),
-                    FileHashAlgorithm.SHA256 => SHA256.HashData(File.ReadAllBytes(fileName)),
-                    FileHashAlgorithm.SHA384 => SHA384.HashData(File.ReadAllBytes(fileName)),
-                    FileHashAlgorithm.SHA512 => SHA512.HashData(File.ReadAllBytes(fileName)),
-                    _ => MD5.HashData(File.ReadAllBytes(fileName)),
+                    FileHashAlgorithm.MD5 => MD5.HashData(fileStream),
+                    FileHashAlgorithm.SHA1 => SHA1.HashData(fileStream),
+                    FileHashAlgorithm.SHA256 => SHA256.HashData(fileStream),
+                    FileHashAlgorithm.SHA384 => SHA384.HashData(fileStream),
+                    FileHashAlgorithm.SHA512 => SHA512.HashData(fileStream),
+                    _ => MD5.HashData(fileStream),
                 };
                 StringBuilder sBuilder = new StringBuilder();
                 for (int i = 0; i < hash.Length; i++)
diff --git a/src/Services/TaskManager.cs b/src/Services/TaskManager.cs
index 496fd3d..f1d6b05 100644
--- a/src/Services/TaskManager.cs
+++ b/src/Services/TaskManager.cs
@@ -268,7 +268,7 @@ namespace iFileProxy.Services
             }
             catch (Exception ex)
             {
-                _logger.Fatal($"执行下载任务时候出现致命问题: {ex.Message}");
+                _logger.Fatal("task: {taskid} 执行下载任务时候出现致命问题: {ex}",taskInfo.TaskId, ex);
                 taskInfo.Status= TaskState.Error;
 
                 _dbGateService.UpdateTaskStatus(taskInfo);