func (self *DataRPCClient) Connect() error {
var err error
self.lock.Lock()
defer self.lock.Unlock()
if self.conn == nil {
self.conn, err = rpc.DialHTTP("tcp", config.DataServerAddr(self.index))
}
return err
}
func (self *DataServer) addr() string {
return config.DataServerAddr(int(self.location))
}