func (c *InfluxChangeConnectionStringCommand) Apply(server raft.Server) (interface{}, error) {
if c.Name == server.Name() {
return nil, nil
}
server.RemovePeer(c.Name)
server.AddPeer(c.Name, c.ConnectionString)
clusterConfig := server.Context().(*cluster.ClusterConfiguration)
newServer := clusterConfig.GetServerByRaftName(c.Name)
// it's a new server the cluster has never seen, make it a potential
if newServer == nil {
return nil, fmt.Errorf("Server %s doesn't exist", c.Name)
}
newServer.RaftConnectionString = c.ConnectionString
newServer.ProtobufConnectionString = c.ProtobufConnectionString
server.Context().(*cluster.ClusterConfiguration).ChangeProtobufConnectionString(newServer)
server.FlushCommitIndex()
return nil, nil
}
func (c *InfluxJoinCommand) Apply(server raft.Server) (interface{}, error) {
err := server.AddPeer(c.Name, c.ConnectionString)
if err != nil {
return nil, err
}
clusterConfig := server.Context().(*cluster.ClusterConfiguration)
newServer := clusterConfig.GetServerByRaftName(c.Name)
// it's a new server the cluster has never seen, make it a potential
if newServer != nil {
return nil, fmt.Errorf("Server %s already exist", c.Name)
}
log.Info("Adding new server to the cluster config %s", c.Name)
clusterServer := cluster.NewClusterServer(c.Name,
c.ConnectionString,
c.ProtobufConnectionString,
nil,
clusterConfig.GetLocalConfiguration())
clusterConfig.AddPotentialServer(clusterServer)
return nil, nil
}
func (c *InfluxJoinCommand) Apply(server raft.Server) (interface{}, error) {
err := server.AddPeer(c.Name, c.ConnectionString)
return []byte("join"), err
}