//
// run server (as leader or follower)
//
func (s *Coordinator) runProtocol(leader string) (err error) {
host := s.getHostUDPAddr()
// If this host is the leader, then start the leader server.
// Otherwise, start the followerCoordinator.
if leader == host {
logging.Debugf("Coordinator.runServer() : Local Coordinator %s is elected as leader. Leading ...", leader)
s.state.setStatus(protocol.LEADING)
// start other master services if this node is a candidate as master
s.idxMgr.startMasterService()
defer s.idxMgr.stopMasterService()
err = protocol.RunLeaderServer(s.getHostTCPAddr(), s.listener, s, s, s.factory, s.skillch)
} else {
logging.Debugf("Coordinator.runServer() : Remote Coordinator %s is elected as leader. Following ...", leader)
s.state.setStatus(protocol.FOLLOWING)
leaderAddr := s.findMatchingPeerTCPAddr(leader)
if len(leaderAddr) == 0 {
return NewError(ERROR_COOR_ELECTION_FAIL, NORMAL, COORDINATOR, nil,
fmt.Sprintf("Index Coordinator cannot find matching TCP addr for leader "+leader))
}
err = protocol.RunFollowerServer(s.getHostTCPAddr(), leaderAddr, s, s, s.factory, s.skillch)
}
return err
}
//
// run server (as leader or follower)
//
func (s *Server) runServer(leader string) (err error) {
host := GetHostUDPAddr()
// If this host is the leader, then start the leader server.
// Otherwise, start the followerServer.
if leader == host {
log.Current.Debugf("Server.runServer() : Local Server %s is elected as leader. Leading ...", leader)
s.state.setStatus(protocol.LEADING)
err = protocol.RunLeaderServer(GetHostTCPAddr(), s.listener, s.state, s.handler, s.factory, s.skillch)
} else {
log.Current.Debugf("Server.runServer() : Remote Server %s is elected as leader. Following ...", leader)
s.state.setStatus(protocol.FOLLOWING)
leaderAddr := findMatchingPeerTCPAddr(leader)
if len(leaderAddr) == 0 {
return common.NewError(common.SERVER_ERROR, "Cannot find matching TCP addr for leader "+leader)
}
err = protocol.RunFollowerServer(GetHostTCPAddr(), leaderAddr, s.state, s.handler, s.factory, s.skillch)
}
return err
}