Add solution time-slicing instead of a long node_timeout when wait responses of PUT from object-server.
By this way it can return the final status of PUT when half of the conns return the response with successful status.
Speeding up the proxy server

It will return the final response after half of the connects return the response with successful status while handling a request of PUT.
The others response of object-server will be ignored.In fact it's enough to make true the PUT is sucessful when half of connects return successful status.
We can set 'rate_put_replicas' as another value less than 1.The default value of 'rate_put_replicas' is 0.5.It will be a good choice to keep reliability and performance.