Buffer requests in nginx while a symlink switches on backend

[Quintin Par]

Hi all,

In a release deployment I would like to buffer client requests that come to
nginx(in reverse proxy) mode to be buffered for possibily 2-6 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?

- Quintin
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