//
// server Ping RPC handler.
//
func (m *Master) Ping(args *client.PingArgs, reply *client.PingReply) error {
client.Debug("Pinging", args.Id)
m.mu.Lock()
defer m.mu.Unlock()
tx := m.hd.Begin()
w := GetWorker(m.hd, args.Id)
if w != nil {
reply.Err = client.OK
w.Status = WORKER_ALIVE
tx.Save(w)
} else {
// The worker was not found in our database, so tell it to reset
reply.Err = client.RESET
}
// Timestamp is automatically upated on save
commitOrPanic(tx)
return nil
}
func (w *Worker) Ping(args *client.PingArgs, reply *client.PingReply) error {
reply.Err = client.OK
return nil
}