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This would be part of the solution. What you would do is on your Host Site you would use 302's when performance hit a certain load, or when a single URL crossed a certain amount of traffic. But you'd only 302 if the useragent didn't match the Google Fetch. That way users would 302 to appengine, but the Reverse Caching Proxy would handle the request. Or you can just put CDN in a box in front of your site, and run off it. This works well, and is extremely elastic. Lastly, you can use a solution like this and only serve parts of the site, like images, JS, and CSS from it, which takes load off of your server. Sorry if this is "spam" it seemed pretty relevant for the task described. From: google-appengine@googlegroups.com [mailto:google-appengine@googlegroups.com] On Behalf Of Barry Hunter Sent: Friday, January 21, 2011 10:56 AM To: google-appengine@googlegroups.com Subject: Re: [google-appengine] Redirect To Google AppEngine when my server down Not directly or robustly. If your application know it was having trouble, say the PHP (or what every language you use!) was running, but it was unable to connect to database to fetch content. Then it could serve a redirect. But in that case the php application could just serve the 'oops, we are down' message directly. However if the whole VPS was down - ie not serving traffic - then there is nothing to serve the redirect. Visitors still get a dead end. ... so the answer then would be to put a proxy in front of your site, that if vps was down, serve content from appengine. ... But that leads to another solution - make AppEngine your proxy! It should be quite easily to implement. And if AppEngine gets no response from your server, it can just serve the error message directly. (You can even make the proxy caching - to save bandwidth on your VPS) (there are alternative solutions, such as having an external monitoring site, monitor if your VPS is healthly, and if not change the dns records - such as moveing traffic to a server that serves a redirect to appengine. But personally I dont beleive they are a good way,because dns often gets cached in more places than expect. It can work if you maintain it right, but it can get quite high maintenance) On 21 January 2011 02:47, Ivan Kristianto <i...@ivankristianto.com> wrote: Hi All, i know this questions may sound stupid. But i wondering if there is a way to redirect my website to google appengine when the server down. This is my scenario: I'm using Google AppEngine to host my static files, and i own a blog which is host on a VPS. But sometimes the VPS down for more than 6 hours without notice. So i come with this idea, how about if i host the "down for maintenance page" on appengine, and when my server is down, it will redirect to something like this: maintenance.somedomain.com which is host on appengine. So my visitors know what is going on. If any of you know how to do this, please help me. I really appreciate all your time and effort. Thanks. Best Regards Ivan -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To post to this group, send email to google-appengine@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com <mailto:google-appengine%2bunsubscr...@googlegroups.com> . For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en. -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To post to this group, send email to google-appengine@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en. -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To post to this group, send email to google-appengine@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
