hi all:

I would like to serve a application , there comes a request with an
arguement ,then nginx use this argument as the memcache_key . if hit
,return the value to client directly, if not hit, rewrite the request to
my backend server(python + django) and with the arguement

it likes:

first: http://myserver:7214/cache/?XXX

hit: return memcached value with key XXX

not hit: rewrite the request like :
http://myserver:7214/gen/?XXX and use proxy_pass to
http://127.0.0.1:1234

I am working on it for serveral days and can't work it out ,
thanks a lot