{var%20f='http://v.t.sina.com.cn/share/share.php?appkey=1515056452',u=z||d.location,p=['&url=',e(u),'&title=',e(t||d.title),'&source=',e(r),'&sourceUrl=',e(l),'&content=',c||'gb2312','&pic=',e(p||'')].join('');function%20a(){if(!window.open([f,p].join(''),'mb',['toolbar=0,status=0,resizable=1,width=440,height=430,left=',(s.width-440)/2,',top=',(s.height-430)/2].join('')))u.href=[f,p].join('');};if(/Firefox/.test(navigator.userAgent))setTimeout(a,0);else%20a();})(screen,document,encodeURIComponent,'','','https://www.manongdao.com/data/attach/logo/logo.png', '推荐 甜甜的少女心 的问题《How long to blob urls served by the app engine rem》','https://www.manongdao.com/q-646367.html','页面编码gb2312|utf-8默认gb2312'));){kind=link}
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!
They remain valid until either you
a. call delete_serving_url, or
b. delete the underling blob.