fask启服务后多轮调用paddleocr识别报错

[balicheng]

flask启服务后调用paddleocr，client调用服务时不时出现如下错误，三个client同时循环调用服务的话，client调用大概十几次服务就会出现这个问题

File "ocr_infer\tools\rec_infer.py", line 19, in rec result = ocr.ocr(img, det=False) File "D:\Anaconda3\envs\paddleocr\lib\site-packages\paddleocr\paddleocr.py", line 535, in ocr img, cls_res, elapse = self.text_classifier(img) File "D:\Anaconda3\envs\paddleocr\lib\site-packages\paddleocr\tools\infer\predict_cls.py", line 114, in call prob_out = self.output_tensors[0].copy_to_cpu() RuntimeError: (PreconditionNotMet) Tensor holds no memory. Call Tensor::mutable_data firstly. [Hint: holder_ should not be null.] (at C:\home\workspace\Paddle_release\paddle\phi\core\dense_tensor_impl.cc:46)

请问大佬是上述是什么问题呢