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operator: fix the AddLearner config version judgment #1732

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Sep 5, 2019
Merged

operator: fix the AddLearner config version judgment #1732

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2 changes: 1 addition & 1 deletion server/schedule/operator/operator.go
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Original file line number Diff line number Diff line change
Expand Up @@ -211,7 +211,7 @@ type AddLearner struct {

// ConfVerChanged returns true if the conf version has been changed by this step
func (al AddLearner) ConfVerChanged(region *core.RegionInfo) bool {
if p := region.GetStoreLearner(al.ToStore); p != nil {
if p := region.GetStorePeer(al.ToStore); p != nil {
return p.GetId() == al.PeerID
}
return false
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43 changes: 38 additions & 5 deletions server/schedule/operator_controller_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -253,7 +253,10 @@ func (t *testOperatorControllerSuite) TestDispatchUnfinishedStep(c *C) {
// The next allocated peer should have peerid 3, so we add this peer
// to store 3
steps := []operator.OpStep{
operator.AddPeer{3, 3},
operator.AddLearner{ToStore: 3, PeerID: 3},
operator.PromoteLearner{ToStore: 3, PeerID: 3},
operator.TransferLeader{ToStore: 3},
operator.RemovePeer{FromStore: 1},
}

// Create an operator
Expand All @@ -266,9 +269,9 @@ func (t *testOperatorControllerSuite) TestDispatchUnfinishedStep(c *C) {
// region2 has peer 3 in pending state, so the AddPeer step
// is left unfinished
region2 := region.Clone(
core.WithAddPeer(&metapb.Peer{Id: 3, StoreId: 3}),
core.WithAddPeer(&metapb.Peer{Id: 3, StoreId: 3, IsLearner: true}),
core.WithPendingPeers([]*metapb.Peer{
{Id: 3, StoreId: 3, IsLearner: false},
{Id: 3, StoreId: 3, IsLearner: true},
}),
core.WithIncConfVer(),
)
Expand All @@ -288,12 +291,42 @@ func (t *testOperatorControllerSuite) TestDispatchUnfinishedStep(c *C) {

// Finish the step by clearing the pending state
region3 := region.Clone(
core.WithAddPeer(&metapb.Peer{Id: 3, StoreId: 3}),
core.WithAddPeer(&metapb.Peer{Id: 3, StoreId: 3, IsLearner: true}),
core.WithIncConfVer(),
)
c.Assert(steps[0].IsFinish(region3), Equals, true)
controller.Dispatch(region3, DispatchFromHeartBeat)
c.Assert(op.ConfVerChanged(region3), Equals, 1)
c.Assert(len(stream.MsgCh()), Equals, 2)

region4 := region3.Clone(
core.WithPromoteLearner(3),
core.WithIncConfVer(),
)
c.Assert(steps[1].IsFinish(region4), Equals, true)
controller.Dispatch(region4, DispatchFromHeartBeat)
c.Assert(op.ConfVerChanged(region4), Equals, 2)
c.Assert(len(stream.MsgCh()), Equals, 3)

// Transfer leader
region5 := region4.Clone(
core.WithLeader(region4.GetStorePeer(3)),
)
c.Assert(steps[2].IsFinish(region5), Equals, true)
controller.Dispatch(region5, DispatchFromHeartBeat)
c.Assert(op.ConfVerChanged(region5), Equals, 2)
c.Assert(len(stream.MsgCh()), Equals, 4)

// Remove peer
region6 := region5.Clone(
core.WithRemoveStorePeer(1),
core.WithIncConfVer(),
)
c.Assert(steps[3].IsFinish(region6), Equals, true)
controller.Dispatch(region6, DispatchFromHeartBeat)
c.Assert(op.ConfVerChanged(region6), Equals, 3)

// The Operator has finished, so no message should be sent
c.Assert(len(stream.MsgCh()), Equals, 1)
c.Assert(len(stream.MsgCh()), Equals, 4)
c.Assert(controller.GetOperator(1), IsNil)
}