模拟客户端向服务端发送请求，老出现如下错误，但是有时候又能连接成功

Question

for i in range(100):
   postdatas = createRequestBody()
   response = sendHttpRequest(postdatas)
   parseResponseData(response.content)
   time.sleep(10)
   os.system('adb shell "/home/root/application/latest/camera_service/camera_client start_video"')

   if (response.status_code == 200):
            
       parseResponseData(response.content)
   time.sleep(10)
   os.system('adb shell "/home/root/application/latest/camera_service/camera_client stop_video"')

代码如上

报错：