> Which key should i set for changing the limit of connection > between pgbouncer <-> posgres8.4?
The options which end in _pool_size. max_client_conn specifies how many application connections can be made to pgbouncer.
It's generally best to use pool_mode of transaction if you can.
> I want to increase the connections of pgbouncer opened on posgres > (pgbouncer<->posgres) to eliminate waiting connections in the > pool, to consume queries faster.