From 9793c518abc956eb8db1a12d3e3091865c42077b Mon Sep 17 00:00:00 2001
From: Yicheng Qin <qycqycqycqycqyc@gmail.com>
Date: Sat, 19 Jul 2014 14:01:11 -0700
Subject: [PATCH] raft: forbid to use none as id

---
 raft/raft.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/raft/raft.go b/raft/raft.go
index 1c9944b51..4e5355d2b 100644
--- a/raft/raft.go
+++ b/raft/raft.go
@@ -141,6 +141,9 @@ type stateMachine struct {
 }
 
 func newStateMachine(id int64, peers []int64) *stateMachine {
+	if id == none {
+		panic("cannot use none id")
+	}
 	sm := &stateMachine{id: id, lead: none, log: newLog(), ins: make(map[int64]*index)}
 	for _, p := range peers {
 		sm.ins[p] = &index{}