fix segmentfault when server start
fix segmentfault when server start

yossigo/redis,ofirluzon/redis,PKRoma/redis,soloestoy/redis,charsyam/redis,soloestoy/redis,antirez/redis,ofirluzon/redis,ofirluzon/redis,soloestoy/redis,neomantra/redis,ctripcorp/redis,neomantra/redis,oranagra/redis,charsyam/redis,neomantra/redis,ctripcorp/redis,pmem/redis,pmem/redis,pmem/redis,charsyam/redis,ofirluzon/redis,PKRoma/redis,oranagra/redis,antirez/redis,yossigo/redis,ctripcorp/redis,soloestoy/redis,yossigo/redis,oranagra/redis,soveran/redis,pmem/redis,PKRoma/redis,soloestoy/redis,yossigo/redis,soveran/redis,neomantra/redis,ofirluzon/redis,oranagra/redis,PKRoma/redis,charsyam/redis,antirez/redis,soveran/redis,soveran/redis,antirez/redis,oranagra/redis,PKRoma/redis,yossigo/redis,neomantra/redis,ctripcorp/redis,charsyam/redis