fixed a bug of stats connection leak
fixed a bug of stats connection leak

cloudcopy/seahub,cloudcopy/seahub,Chilledheart/seahub,cloudcopy/seahub,madflow/seahub,miurahr/seahub,miurahr/seahub,Chilledheart/seahub,Chilledheart/seahub,Chilledheart/seahub,madflow/seahub,Chilledheart/seahub,miurahr/seahub,madflow/seahub,madflow/seahub,madflow/seahub,cloudcopy/seahub,miurahr/seahub