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raft: fix raft node start bug

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raft node should set initial prev hard state to empty.
Or it will not send the first hard coded state to application
until the state changes again.

This commit fixs the issue. It introduce a small overhead, that
the same tate might send to application twice when restarting.
But this is fine.
This commit is contained in:
Xiang Li 2015-05-27 13:30:08 -07:00 committed by Yicheng Qin
parent a98fff84e7
commit b4dd519a63
2 changed files with 3 additions and 3 deletions
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2
raft/node.go
View File

@ -233,7 +233,7 @@ func (n *node) run(r *raft) {
lead := None
prevSoftSt := r.softState()
prevHardSt := r.HardState
prevHardSt := emptyState
for {
if advancec != nil {

4
raft/node_test.go
View File

@ -354,7 +354,7 @@ func TestNodeRestart(t *testing.T) {
st := raftpb.HardState{Term: 1, Commit: 1}
want := Ready{
HardState: emptyState,
HardState: st,
// commit up to index commit index in st
CommittedEntries: entries[:st.Commit],
}
@ -389,7 +389,7 @@ func TestNodeRestartFromSnapshot(t *testing.T) {
st := raftpb.HardState{Term: 1, Commit: 3}
want := Ready{
HardState: emptyState,
HardState: st,
// commit up to index commit index in st
CommittedEntries: entries,
}