Peers#clear: just over-write _map
Peers#clear: just over-write _map

vanloswang/tchannel,Zirpon/tchannel,vanloswang/tchannel,hustxiaoc/tchannel,sasa233/tchannel,hustxiaoc/tchannel,savaki/tchannel,RyanTech/tchannel,vanloswang/tchannel,benfleis/tchannel,chenwenbin928/tchannel,bunnyblue/tchannel,RyanTech/tchannel,savaki/tchannel,bunnyblue/tchannel,benfleis/tchannel,savaki/tchannel,i/tchannel,bunnyblue/tchannel,hustxiaoc/tchannel,chenwenbin928/tchannel,i/tchannel,sasa233/tchannel,sasa233/tchannel,i/tchannel,RyanTech/tchannel,chenwenbin928/tchannel,benfleis/tchannel,Zirpon/tchannel,Zirpon/tchannel