func (s *Session) LiveServers() (addrs []string) {
	s.m.RLock()
	addrs = s.cluster().LiveServers()
	s.m.RUnlock()
	return addrs
}
func (s *Session) LiveServers() (addrs []string) {
	s.m.RLock()
	addrs = s.cluster().LiveServers()
	s.m.RUnlock()
	return addrs
}
func ( s * Session ) LiveServers ( ) ( addrs [ ] string ) { s . m . RLock ( ) addrs = s . cluster ( ) . LiveServers ( ) s . m . RUnlock ( ) return addrs }
// LiveServers returns a list of server addresses which are
// currently known to be alive.
LiveServers returns a list of server addresses which are currently known to be alive .