Fix getServer cache return
Fix getServer cache return

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