Buffer requests in nginx while a symlink switches on backend

Posted by Quintin Par on Server Fault See other posts from Server Fault or by Quintin Par
Published on 2012-06-02T18:06:07Z Indexed on 2012/06/04 22:42 UTC
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nginx

In a release deployment I would like to buffer client requests that come to nginx(in reverse proxy) mode to be buffered for possibily 1-2 seconds while a pdsh request is sent to switch symlinks on the back end server to /var/www/html/current .

After the switch is complete, I would want to release the buffering while avoiding a herd clash.

Is this possible in nginx? Can someone help?

Edit:
The idea is not to loose requests and from nginx forums I've come to know that retries can sometimes results in CPU spins

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