milvus/internal/querycoordv2/checkers/leader_checker_test.go
jaime 9630974fbb
enhance: move rocksmq from internal to pkg module (#33881)
issue: #33956

Signed-off-by: jaime <yun.zhang@zilliz.com>
2024-06-25 21:18:15 +08:00

533 lines
20 KiB
Go

// Licensed to the LF AI & Data foundation under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you 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 checkers
import (
"context"
"testing"
"time"
"github.com/stretchr/testify/mock"
"github.com/stretchr/testify/suite"
etcdkv "github.com/milvus-io/milvus/internal/kv/etcd"
"github.com/milvus-io/milvus/internal/metastore/kv/querycoord"
"github.com/milvus-io/milvus/internal/proto/datapb"
"github.com/milvus-io/milvus/internal/proto/querypb"
"github.com/milvus-io/milvus/internal/querycoordv2/meta"
. "github.com/milvus-io/milvus/internal/querycoordv2/params"
"github.com/milvus-io/milvus/internal/querycoordv2/session"
"github.com/milvus-io/milvus/internal/querycoordv2/task"
"github.com/milvus-io/milvus/internal/querycoordv2/utils"
"github.com/milvus-io/milvus/pkg/kv"
"github.com/milvus-io/milvus/pkg/util/etcd"
"github.com/milvus-io/milvus/pkg/util/paramtable"
)
type LeaderCheckerTestSuite struct {
suite.Suite
checker *LeaderChecker
kv kv.MetaKv
meta *meta.Meta
broker *meta.MockBroker
nodeMgr *session.NodeManager
}
func (suite *LeaderCheckerTestSuite) SetupSuite() {
paramtable.Init()
}
func (suite *LeaderCheckerTestSuite) SetupTest() {
var err error
config := GenerateEtcdConfig()
cli, err := etcd.GetEtcdClient(
config.UseEmbedEtcd.GetAsBool(),
config.EtcdUseSSL.GetAsBool(),
config.Endpoints.GetAsStrings(),
config.EtcdTLSCert.GetValue(),
config.EtcdTLSKey.GetValue(),
config.EtcdTLSCACert.GetValue(),
config.EtcdTLSMinVersion.GetValue())
suite.Require().NoError(err)
suite.kv = etcdkv.NewEtcdKV(cli, config.MetaRootPath.GetValue())
// meta
store := querycoord.NewCatalog(suite.kv)
idAllocator := RandomIncrementIDAllocator()
suite.nodeMgr = session.NewNodeManager()
suite.meta = meta.NewMeta(idAllocator, store, suite.nodeMgr)
suite.broker = meta.NewMockBroker(suite.T())
distManager := meta.NewDistributionManager()
targetManager := meta.NewTargetManager(suite.broker, suite.meta)
suite.checker = NewLeaderChecker(suite.meta, distManager, targetManager, suite.nodeMgr)
}
func (suite *LeaderCheckerTestSuite) TearDownTest() {
suite.kv.Close()
}
func (suite *LeaderCheckerTestSuite) TestSyncLoadedSegments() {
observer := suite.checker
observer.meta.CollectionManager.PutCollection(utils.CreateTestCollection(1, 1))
observer.meta.CollectionManager.PutPartition(utils.CreateTestPartition(1, 1))
observer.meta.ReplicaManager.Put(utils.CreateTestReplica(1, 1, []int64{1, 2}))
segments := []*datapb.SegmentInfo{
{
ID: 1,
PartitionID: 1,
InsertChannel: "test-insert-channel",
},
}
channels := []*datapb.VchannelInfo{
{
CollectionID: 1,
ChannelName: "test-insert-channel",
},
}
suite.broker.EXPECT().GetRecoveryInfoV2(mock.Anything, int64(1)).Return(
channels, segments, nil)
// before target ready, should skip check collection
tasks := suite.checker.Check(context.TODO())
suite.Len(tasks, 0)
suite.nodeMgr.Add(session.NewNodeInfo(session.ImmutableNodeInfo{
NodeID: 1,
Address: "localhost",
Hostname: "localhost",
}))
suite.nodeMgr.Add(session.NewNodeInfo(session.ImmutableNodeInfo{
NodeID: 2,
Address: "localhost",
Hostname: "localhost",
}))
// test leader view lack of segments
observer.target.UpdateCollectionNextTarget(int64(1))
observer.target.UpdateCollectionCurrentTarget(1)
loadVersion := time.Now().UnixMilli()
observer.dist.SegmentDistManager.Update(1, utils.CreateTestSegment(1, 1, 1, 2, loadVersion, "test-insert-channel"))
observer.dist.ChannelDistManager.Update(2, utils.CreateTestChannel(1, 2, 1, "test-insert-channel"))
view := utils.CreateTestLeaderView(2, 1, "test-insert-channel", map[int64]int64{}, map[int64]*meta.Segment{})
view.TargetVersion = observer.target.GetCollectionTargetVersion(1, meta.CurrentTarget)
observer.dist.LeaderViewManager.Update(2, view)
tasks = suite.checker.Check(context.TODO())
suite.Len(tasks, 1)
suite.Equal(tasks[0].Source(), utils.LeaderChecker)
suite.Len(tasks[0].Actions(), 1)
suite.Equal(tasks[0].Actions()[0].Type(), task.ActionTypeGrow)
suite.Equal(tasks[0].Actions()[0].Node(), int64(1))
suite.Equal(tasks[0].Actions()[0].(*task.LeaderAction).SegmentID(), int64(1))
suite.Equal(tasks[0].Priority(), task.TaskPriorityLow)
// test segment's version in leader view doesn't match segment's version in dist
observer.dist.SegmentDistManager.Update(1, utils.CreateTestSegment(1, 1, 1, 2, 1, "test-insert-channel"))
view = utils.CreateTestLeaderView(2, 1, "test-insert-channel", map[int64]int64{}, map[int64]*meta.Segment{})
view.TargetVersion = observer.target.GetCollectionTargetVersion(1, meta.CurrentTarget)
view.Segments[1] = &querypb.SegmentDist{
NodeID: 0,
Version: time.Now().UnixMilli() - 1,
}
observer.dist.LeaderViewManager.Update(2, view)
tasks = suite.checker.Check(context.TODO())
suite.Len(tasks, 1)
suite.Equal(tasks[0].Source(), utils.LeaderChecker)
suite.Len(tasks[0].Actions(), 1)
suite.Equal(tasks[0].Actions()[0].Type(), task.ActionTypeGrow)
suite.Equal(tasks[0].Actions()[0].Node(), int64(1))
suite.Equal(tasks[0].Actions()[0].(*task.LeaderAction).SegmentID(), int64(1))
suite.Equal(tasks[0].Priority(), task.TaskPriorityLow)
// test skip sync l0 segment
segments = []*datapb.SegmentInfo{
{
ID: 1,
PartitionID: 1,
InsertChannel: "test-insert-channel",
Level: datapb.SegmentLevel_L0,
},
}
suite.broker.ExpectedCalls = nil
suite.broker.EXPECT().GetRecoveryInfoV2(mock.Anything, int64(1)).Return(
channels, segments, nil)
observer.target.UpdateCollectionNextTarget(int64(1))
observer.target.UpdateCollectionCurrentTarget(1)
// mock l0 segment exist on non delegator node, doesn't set to leader view
observer.dist.SegmentDistManager.Update(1, utils.CreateTestSegment(1, 1, 1, 1, loadVersion, "test-insert-channel"))
observer.dist.ChannelDistManager.Update(2, utils.CreateTestChannel(1, 2, 1, "test-insert-channel"))
view = utils.CreateTestLeaderView(2, 1, "test-insert-channel", map[int64]int64{}, map[int64]*meta.Segment{})
view.TargetVersion = observer.target.GetCollectionTargetVersion(1, meta.CurrentTarget)
observer.dist.LeaderViewManager.Update(2, view)
tasks = suite.checker.Check(context.TODO())
suite.Len(tasks, 0)
}
func (suite *LeaderCheckerTestSuite) TestActivation() {
observer := suite.checker
observer.meta.CollectionManager.PutCollection(utils.CreateTestCollection(1, 1))
observer.meta.CollectionManager.PutPartition(utils.CreateTestPartition(1, 1))
observer.meta.ReplicaManager.Put(utils.CreateTestReplica(1, 1, []int64{1, 2}))
segments := []*datapb.SegmentInfo{
{
ID: 1,
PartitionID: 1,
InsertChannel: "test-insert-channel",
},
}
channels := []*datapb.VchannelInfo{
{
CollectionID: 1,
ChannelName: "test-insert-channel",
},
}
suite.broker.EXPECT().GetRecoveryInfoV2(mock.Anything, int64(1)).Return(
channels, segments, nil)
suite.nodeMgr.Add(session.NewNodeInfo(session.ImmutableNodeInfo{
NodeID: 1,
Address: "localhost",
Hostname: "localhost",
}))
suite.nodeMgr.Add(session.NewNodeInfo(session.ImmutableNodeInfo{
NodeID: 2,
Address: "localhost",
Hostname: "localhost",
}))
observer.target.UpdateCollectionNextTarget(int64(1))
observer.target.UpdateCollectionCurrentTarget(1)
observer.dist.SegmentDistManager.Update(1, utils.CreateTestSegment(1, 1, 1, 2, 1, "test-insert-channel"))
observer.dist.ChannelDistManager.Update(2, utils.CreateTestChannel(1, 2, 1, "test-insert-channel"))
view := utils.CreateTestLeaderView(2, 1, "test-insert-channel", map[int64]int64{}, map[int64]*meta.Segment{})
view.TargetVersion = observer.target.GetCollectionTargetVersion(1, meta.CurrentTarget)
observer.dist.LeaderViewManager.Update(2, view)
suite.checker.Deactivate()
tasks := suite.checker.Check(context.TODO())
suite.Len(tasks, 0)
suite.checker.Activate()
tasks = suite.checker.Check(context.TODO())
suite.Len(tasks, 1)
suite.Equal(tasks[0].Source(), utils.LeaderChecker)
suite.Len(tasks[0].Actions(), 1)
suite.Equal(tasks[0].Actions()[0].Type(), task.ActionTypeGrow)
suite.Equal(tasks[0].Actions()[0].Node(), int64(1))
suite.Equal(tasks[0].Actions()[0].(*task.LeaderAction).SegmentID(), int64(1))
suite.Equal(tasks[0].Priority(), task.TaskPriorityLow)
}
func (suite *LeaderCheckerTestSuite) TestStoppingNode() {
observer := suite.checker
observer.meta.CollectionManager.PutCollection(utils.CreateTestCollection(1, 1))
observer.meta.CollectionManager.PutPartition(utils.CreateTestPartition(1, 1))
replica := utils.CreateTestReplica(1, 1, []int64{1, 2})
observer.meta.ReplicaManager.Put(replica)
segments := []*datapb.SegmentInfo{
{
ID: 1,
PartitionID: 1,
InsertChannel: "test-insert-channel",
},
}
channels := []*datapb.VchannelInfo{
{
CollectionID: 1,
ChannelName: "test-insert-channel",
},
}
suite.broker.EXPECT().GetRecoveryInfoV2(mock.Anything, int64(1)).Return(
channels, segments, nil)
observer.target.UpdateCollectionNextTarget(int64(1))
observer.target.UpdateCollectionCurrentTarget(1)
observer.dist.SegmentDistManager.Update(1, utils.CreateTestSegment(1, 1, 1, 2, 1, "test-insert-channel"))
observer.dist.ChannelDistManager.Update(2, utils.CreateTestChannel(1, 2, 1, "test-insert-channel"))
view := utils.CreateTestLeaderView(2, 1, "test-insert-channel", map[int64]int64{}, map[int64]*meta.Segment{})
view.TargetVersion = observer.target.GetCollectionTargetVersion(1, meta.CurrentTarget)
observer.dist.LeaderViewManager.Update(2, view)
mutableReplica := replica.CopyForWrite()
mutableReplica.AddRONode(2)
observer.meta.ReplicaManager.Put(mutableReplica.IntoReplica())
tasks := suite.checker.Check(context.TODO())
suite.Len(tasks, 0)
}
func (suite *LeaderCheckerTestSuite) TestIgnoreSyncLoadedSegments() {
observer := suite.checker
observer.meta.CollectionManager.PutCollection(utils.CreateTestCollection(1, 1))
observer.meta.CollectionManager.PutPartition(utils.CreateTestPartition(1, 1))
observer.meta.ReplicaManager.Put(utils.CreateTestReplica(1, 1, []int64{1, 2}))
segments := []*datapb.SegmentInfo{
{
ID: 1,
PartitionID: 1,
InsertChannel: "test-insert-channel",
},
}
channels := []*datapb.VchannelInfo{
{
CollectionID: 1,
ChannelName: "test-insert-channel",
},
}
suite.broker.EXPECT().GetRecoveryInfoV2(mock.Anything, int64(1)).Return(
channels, segments, nil)
suite.nodeMgr.Add(session.NewNodeInfo(session.ImmutableNodeInfo{
NodeID: 1,
Address: "localhost",
Hostname: "localhost",
}))
suite.nodeMgr.Add(session.NewNodeInfo(session.ImmutableNodeInfo{
NodeID: 2,
Address: "localhost",
Hostname: "localhost",
}))
observer.target.UpdateCollectionNextTarget(int64(1))
observer.target.UpdateCollectionCurrentTarget(1)
observer.target.UpdateCollectionNextTarget(int64(1))
observer.dist.SegmentDistManager.Update(1, utils.CreateTestSegment(1, 1, 1, 2, 1, "test-insert-channel"),
utils.CreateTestSegment(1, 1, 2, 2, 1, "test-insert-channel"))
observer.dist.ChannelDistManager.Update(2, utils.CreateTestChannel(1, 2, 1, "test-insert-channel"))
view := utils.CreateTestLeaderView(2, 1, "test-insert-channel", map[int64]int64{}, map[int64]*meta.Segment{})
view.TargetVersion = observer.target.GetCollectionTargetVersion(1, meta.CurrentTarget)
observer.dist.LeaderViewManager.Update(2, view)
tasks := suite.checker.Check(context.TODO())
suite.Len(tasks, 1)
suite.Equal(tasks[0].Source(), utils.LeaderChecker)
suite.Len(tasks[0].Actions(), 1)
suite.Equal(tasks[0].Actions()[0].Type(), task.ActionTypeGrow)
suite.Equal(tasks[0].Actions()[0].Node(), int64(1))
suite.Equal(tasks[0].Actions()[0].(*task.LeaderAction).SegmentID(), int64(1))
suite.Equal(tasks[0].Priority(), task.TaskPriorityLow)
}
func (suite *LeaderCheckerTestSuite) TestSyncLoadedSegmentsWithReplicas() {
observer := suite.checker
observer.meta.CollectionManager.PutCollection(utils.CreateTestCollection(1, 2))
observer.meta.CollectionManager.PutPartition(utils.CreateTestPartition(1, 1))
observer.meta.ReplicaManager.Put(utils.CreateTestReplica(1, 1, []int64{1, 2}))
observer.meta.ReplicaManager.Put(utils.CreateTestReplica(2, 1, []int64{3, 4}))
segments := []*datapb.SegmentInfo{
{
ID: 1,
PartitionID: 1,
InsertChannel: "test-insert-channel",
},
}
channels := []*datapb.VchannelInfo{
{
CollectionID: 1,
ChannelName: "test-insert-channel",
},
}
suite.broker.EXPECT().GetRecoveryInfoV2(mock.Anything, int64(1)).Return(
channels, segments, nil)
suite.nodeMgr.Add(session.NewNodeInfo(session.ImmutableNodeInfo{
NodeID: 1,
Address: "localhost",
Hostname: "localhost",
}))
suite.nodeMgr.Add(session.NewNodeInfo(session.ImmutableNodeInfo{
NodeID: 2,
Address: "localhost",
Hostname: "localhost",
}))
observer.target.UpdateCollectionNextTarget(int64(1))
observer.target.UpdateCollectionCurrentTarget(1)
observer.dist.SegmentDistManager.Update(1, utils.CreateTestSegment(1, 1, 1, 1, 0, "test-insert-channel"))
observer.dist.SegmentDistManager.Update(4, utils.CreateTestSegment(1, 1, 1, 4, 0, "test-insert-channel"))
observer.dist.ChannelDistManager.Update(2, utils.CreateTestChannel(1, 2, 1, "test-insert-channel"))
observer.dist.ChannelDistManager.Update(4, utils.CreateTestChannel(1, 4, 2, "test-insert-channel"))
view := utils.CreateTestLeaderView(2, 1, "test-insert-channel", map[int64]int64{}, map[int64]*meta.Segment{})
view.TargetVersion = observer.target.GetCollectionTargetVersion(1, meta.CurrentTarget)
observer.dist.LeaderViewManager.Update(2, view)
view2 := utils.CreateTestLeaderView(4, 1, "test-insert-channel", map[int64]int64{1: 4}, map[int64]*meta.Segment{})
view.TargetVersion = observer.target.GetCollectionTargetVersion(1, meta.CurrentTarget)
observer.dist.LeaderViewManager.Update(4, view2)
tasks := suite.checker.Check(context.TODO())
suite.Len(tasks, 1)
suite.Equal(tasks[0].Source(), utils.LeaderChecker)
suite.Equal(tasks[0].ReplicaID(), int64(1))
suite.Len(tasks[0].Actions(), 1)
suite.Equal(tasks[0].Actions()[0].Type(), task.ActionTypeGrow)
suite.Equal(tasks[0].Actions()[0].Node(), int64(1))
suite.Equal(tasks[0].Actions()[0].(*task.LeaderAction).SegmentID(), int64(1))
suite.Equal(tasks[0].Priority(), task.TaskPriorityLow)
}
func (suite *LeaderCheckerTestSuite) TestSyncRemovedSegments() {
observer := suite.checker
observer.meta.CollectionManager.PutCollection(utils.CreateTestCollection(1, 1))
observer.meta.CollectionManager.PutPartition(utils.CreateTestPartition(1, 1))
observer.meta.ReplicaManager.Put(utils.CreateTestReplica(1, 1, []int64{1, 2}))
channels := []*datapb.VchannelInfo{
{
CollectionID: 1,
ChannelName: "test-insert-channel",
},
}
suite.broker.EXPECT().GetRecoveryInfoV2(mock.Anything, int64(1)).Return(
channels, nil, nil)
observer.target.UpdateCollectionNextTarget(int64(1))
observer.target.UpdateCollectionCurrentTarget(1)
observer.dist.ChannelDistManager.Update(2, utils.CreateTestChannel(1, 2, 1, "test-insert-channel"))
view := utils.CreateTestLeaderView(2, 1, "test-insert-channel", map[int64]int64{3: 1}, map[int64]*meta.Segment{})
view.TargetVersion = observer.target.GetCollectionTargetVersion(1, meta.CurrentTarget)
observer.dist.LeaderViewManager.Update(2, view)
tasks := suite.checker.Check(context.TODO())
suite.Len(tasks, 1)
suite.Equal(tasks[0].Source(), utils.LeaderChecker)
suite.Equal(tasks[0].ReplicaID(), int64(1))
suite.Len(tasks[0].Actions(), 1)
suite.Equal(tasks[0].Actions()[0].Type(), task.ActionTypeReduce)
suite.Equal(tasks[0].Actions()[0].Node(), int64(2))
suite.Equal(tasks[0].Actions()[0].(*task.LeaderAction).SegmentID(), int64(3))
suite.Equal(tasks[0].Actions()[0].(*task.LeaderAction).Version(), int64(0))
suite.Equal(tasks[0].Priority(), task.TaskPriorityLow)
// skip sync l0 segments
segments := []*datapb.SegmentInfo{
{
ID: 3,
PartitionID: 1,
InsertChannel: "test-insert-channel",
Level: datapb.SegmentLevel_L0,
},
}
suite.broker.ExpectedCalls = nil
suite.broker.EXPECT().GetRecoveryInfoV2(mock.Anything, int64(1)).Return(
channels, segments, nil)
observer.target.UpdateCollectionNextTarget(int64(1))
observer.target.UpdateCollectionCurrentTarget(1)
observer.dist.ChannelDistManager.Update(2, utils.CreateTestChannel(1, 2, 1, "test-insert-channel"))
view = utils.CreateTestLeaderView(2, 1, "test-insert-channel", map[int64]int64{3: 1}, map[int64]*meta.Segment{})
view.TargetVersion = observer.target.GetCollectionTargetVersion(1, meta.CurrentTarget)
observer.dist.LeaderViewManager.Update(2, view)
tasks = suite.checker.Check(context.TODO())
suite.Len(tasks, 0)
}
func (suite *LeaderCheckerTestSuite) TestIgnoreSyncRemovedSegments() {
observer := suite.checker
observer.meta.CollectionManager.PutCollection(utils.CreateTestCollection(1, 1))
observer.meta.CollectionManager.PutPartition(utils.CreateTestPartition(1, 1))
observer.meta.ReplicaManager.Put(utils.CreateTestReplica(1, 1, []int64{1, 2}))
segments := []*datapb.SegmentInfo{
{
ID: 2,
PartitionID: 1,
InsertChannel: "test-insert-channel",
},
}
channels := []*datapb.VchannelInfo{
{
CollectionID: 1,
ChannelName: "test-insert-channel",
},
}
suite.broker.EXPECT().GetRecoveryInfoV2(mock.Anything, int64(1)).Return(
channels, segments, nil)
observer.target.UpdateCollectionNextTarget(int64(1))
observer.dist.ChannelDistManager.Update(2, utils.CreateTestChannel(1, 2, 1, "test-insert-channel"))
observer.dist.LeaderViewManager.Update(2, utils.CreateTestLeaderView(2, 1, "test-insert-channel", map[int64]int64{3: 2, 2: 2}, map[int64]*meta.Segment{}))
tasks := suite.checker.Check(context.TODO())
suite.Len(tasks, 1)
suite.Equal(tasks[0].Source(), utils.LeaderChecker)
suite.Equal(tasks[0].ReplicaID(), int64(1))
suite.Len(tasks[0].Actions(), 1)
suite.Equal(tasks[0].Actions()[0].Type(), task.ActionTypeReduce)
suite.Equal(tasks[0].Actions()[0].Node(), int64(2))
suite.Equal(tasks[0].Actions()[0].(*task.LeaderAction).SegmentID(), int64(3))
suite.Equal(tasks[0].Priority(), task.TaskPriorityLow)
}
func (suite *LeaderCheckerTestSuite) TestUpdatePartitionStats() {
testChannel := "test-insert-channel"
leaderID := int64(2)
observer := suite.checker
observer.meta.CollectionManager.PutCollection(utils.CreateTestCollection(1, 1))
observer.meta.CollectionManager.PutPartition(utils.CreateTestPartition(1, 1))
observer.meta.ReplicaManager.Put(utils.CreateTestReplica(1, 1, []int64{1, 2}))
segments := []*datapb.SegmentInfo{
{
ID: 1,
PartitionID: 1,
InsertChannel: testChannel,
},
}
// latest partition stats is 101
newPartitionStatsMap := make(map[int64]int64)
newPartitionStatsMap[1] = 101
channels := []*datapb.VchannelInfo{
{
CollectionID: 1,
ChannelName: testChannel,
PartitionStatsVersions: newPartitionStatsMap,
},
}
suite.broker.EXPECT().GetRecoveryInfoV2(mock.Anything, int64(1)).Return(
channels, segments, nil)
// before target ready, should skip check collection
tasks := suite.checker.Check(context.TODO())
suite.Len(tasks, 0)
// try to update cur/next target
observer.target.UpdateCollectionNextTarget(int64(1))
observer.target.UpdateCollectionCurrentTarget(1)
loadVersion := time.Now().UnixMilli()
observer.dist.SegmentDistManager.Update(1, utils.CreateTestSegment(1, 1, 2, 1, loadVersion, testChannel))
observer.dist.ChannelDistManager.Update(2, utils.CreateTestChannel(1, 2, 1, testChannel))
view := utils.CreateTestLeaderView(2, 1, testChannel, map[int64]int64{2: 1}, map[int64]*meta.Segment{})
view.PartitionStatsVersions = map[int64]int64{
1: 100,
}
// current partition stat version in leader view is version100 for partition1
view.TargetVersion = observer.target.GetCollectionTargetVersion(1, meta.CurrentTarget)
observer.dist.LeaderViewManager.Update(leaderID, view)
tasks = suite.checker.Check(context.TODO())
suite.Len(tasks, 1)
suite.Equal(tasks[0].Source(), utils.LeaderChecker)
suite.Len(tasks[0].Actions(), 1)
suite.Equal(tasks[0].Actions()[0].Type(), task.ActionTypeUpdate)
suite.Equal(tasks[0].Actions()[0].Node(), int64(2))
}
func TestLeaderCheckerSuite(t *testing.T) {
suite.Run(t, new(LeaderCheckerTestSuite))
}