only warn if the existing peer exists
only warn if the existing peer exists

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