应用程序引擎提供的blob urls有多久仍然有效？ [英] How long to blob urls served by the app engine remain valid?

问题描述

我一直在跟踪我服务的网址一张图片，位于1/3/13，且仍在那里。

我特别要求，所以我可以缓存图片网址，而不是试图重复投放它。如果我这样做，我仍然会检查图像是否存在，但是我多久需要检查一下

谢谢！

a。

请致电 delete_serving_url 或

b。 删除下面的blob。

I was wondering if anyone knew how long image urls served back from the google app engine blob store remain valid for?

I have been tracking on url that i served an image from the blob store on 1/3/13 and its still there.

I am ask specifically so i can cache the image url instead of attempting to serve it repeatedly. If i did this i would still check if the image is there, but how often would i need to check that

thanks!

解决方案

They remain valid until either you

a. call delete_serving_url, or
b. delete the underling blob.

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