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Signed-off-by: Wenbo Zhang <ethercflow@gmail.com> #ref tikv#5638
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| // Copyright 2022 TiKV Project Authors. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package schedulers | ||
|
|
||
| import ( | ||
| "context" | ||
| "reflect" | ||
| "testing" | ||
|
|
||
| "github.com/pingcap/kvproto/pkg/metapb" | ||
| "github.com/pingcap/kvproto/pkg/pdpb" | ||
| "github.com/stretchr/testify/require" | ||
| "github.com/tikv/pd/pkg/mock/mockcluster" | ||
| "github.com/tikv/pd/pkg/testutil" | ||
| "github.com/tikv/pd/server/config" | ||
| "github.com/tikv/pd/server/core" | ||
| "github.com/tikv/pd/server/schedule" | ||
| "github.com/tikv/pd/server/schedule/operator" | ||
| "github.com/tikv/pd/server/storage" | ||
| ) | ||
|
|
||
| func TestTransferLeader(t *testing.T) { | ||
| re := require.New(t) | ||
| ctx, cancel := context.WithCancel(context.Background()) | ||
| defer cancel() | ||
|
|
||
| opt := config.NewTestOptions() | ||
| tc := mockcluster.NewCluster(ctx, opt) | ||
|
|
||
| // Add stores 1, 2, 3 | ||
| tc.AddLeaderStore(1, 0) | ||
| tc.AddLeaderStore(2, 0) | ||
| tc.AddLeaderStore(3, 0) | ||
| // Add regions 1 with leader in stores 1 | ||
| tc.AddLeaderRegion(1, 1, 2, 3) | ||
|
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||
| sl, err := schedule.CreateScheduler(TransferLeaderType, schedule.NewOperatorController(ctx, nil, nil), storage.NewStorageWithMemoryBackend(), schedule.ConfigSliceDecoder(TransferLeaderType, []string{"1"})) | ||
| re.NoError(err) | ||
| re.True(sl.IsScheduleAllowed(tc)) | ||
| ops, _ := sl.Schedule(tc, false) | ||
| testutil.CheckMultiTargetTransferLeader(re, ops[0], operator.OpLeader, 1, []uint64{2, 3}) | ||
| re.False(ops[0].Step(0).(operator.TransferLeader).IsFinish(tc.MockRegionInfo(1, 1, []uint64{2, 3}, []uint64{}, &metapb.RegionEpoch{ConfVer: 0, Version: 0}))) | ||
| re.True(ops[0].Step(0).(operator.TransferLeader).IsFinish(tc.MockRegionInfo(1, 2, []uint64{1, 3}, []uint64{}, &metapb.RegionEpoch{ConfVer: 0, Version: 0}))) | ||
| } | ||
|
|
||
| func TestTransferLeaderWithUnhealthyPeer(t *testing.T) { | ||
| re := require.New(t) | ||
| ctx, cancel := context.WithCancel(context.Background()) | ||
| defer cancel() | ||
|
|
||
| opt := config.NewTestOptions() | ||
| tc := mockcluster.NewCluster(ctx, opt) | ||
| sl, err := schedule.CreateScheduler(TransferLeaderType, schedule.NewOperatorController(ctx, nil, nil), storage.NewStorageWithMemoryBackend(), schedule.ConfigSliceDecoder(TransferLeaderType, []string{"1"})) | ||
| re.NoError(err) | ||
|
|
||
| // Add stores 1, 2, 3 | ||
| tc.AddLeaderStore(1, 0) | ||
| tc.AddLeaderStore(2, 0) | ||
| tc.AddLeaderStore(3, 0) | ||
| // Add region 1, which has 3 peers. 1 is leader. 2 is healthy or pending, 3 is healthy or down. | ||
| tc.AddLeaderRegion(1, 1, 2, 3) | ||
| region := tc.MockRegionInfo(1, 1, []uint64{2, 3}, nil, nil) | ||
| withDownPeer := core.WithDownPeers([]*pdpb.PeerStats{{ | ||
| Peer: region.GetPeers()[2], | ||
| DownSeconds: 1000, | ||
| }}) | ||
| withPendingPeer := core.WithPendingPeers([]*metapb.Peer{region.GetPeers()[1]}) | ||
|
|
||
| // only pending | ||
| tc.PutRegion(region.Clone(withPendingPeer)) | ||
| ops, _ := sl.Schedule(tc, false) | ||
| testutil.CheckMultiTargetTransferLeader(re, ops[0], operator.OpLeader, 1, []uint64{3}) | ||
| // only down | ||
| tc.PutRegion(region.Clone(withDownPeer)) | ||
| ops, _ = sl.Schedule(tc, false) | ||
| testutil.CheckMultiTargetTransferLeader(re, ops[0], operator.OpLeader, 1, []uint64{2}) | ||
| // pending + down | ||
| tc.PutRegion(region.Clone(withPendingPeer, withDownPeer)) | ||
| ops, _ = sl.Schedule(tc, false) | ||
| re.Empty(ops) | ||
| } | ||
|
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| func TestTransferLeaderConfigClone(t *testing.T) { | ||
| re := require.New(t) | ||
|
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| emptyConf := &transferLeaderSchedulerConfig{Regions: make([]uint64, 0)} | ||
| con2 := emptyConf.Clone() | ||
| re.Empty(emptyConf.getRegions()) | ||
| re.NoError(con2.BuildWithArgs([]string{"1"})) | ||
| re.NotEmpty(con2.getRegions()) | ||
| re.Empty(emptyConf.getRegions()) | ||
|
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| con3 := con2.Clone() | ||
| con3.Regions = []uint64{1, 2, 3} | ||
| re.Empty(emptyConf.getRegions()) | ||
| re.False(len(con3.getRegions()) == len(con2.getRegions())) | ||
|
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| con4 := con3.Clone() | ||
| re.True(reflect.DeepEqual(con4.getRegions(), con3.getRegions())) | ||
| con4.Regions[0] = 4 | ||
| re.False(con4.Regions[0] == con3.Regions[0]) | ||
| } |