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https://gitee.com/milvus-io/milvus.git
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501 lines
18 KiB
Go
501 lines
18 KiB
Go
// Licensed to the LF AI & Data foundation under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package proxy
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import (
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"context"
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"reflect"
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"testing"
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"github.com/cockroachdb/errors"
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"github.com/pingcap/log"
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"github.com/stretchr/testify/mock"
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"github.com/stretchr/testify/suite"
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"go.uber.org/atomic"
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"go.uber.org/zap"
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"google.golang.org/grpc"
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"google.golang.org/protobuf/proto"
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"github.com/milvus-io/milvus-proto/go-api/v2/commonpb"
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"github.com/milvus-io/milvus-proto/go-api/v2/milvuspb"
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"github.com/milvus-io/milvus-proto/go-api/v2/schemapb"
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"github.com/milvus-io/milvus/internal/mocks"
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"github.com/milvus-io/milvus/internal/proto/internalpb"
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"github.com/milvus-io/milvus/internal/proto/querypb"
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"github.com/milvus-io/milvus/internal/types"
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"github.com/milvus-io/milvus/pkg/common"
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"github.com/milvus-io/milvus/pkg/util/merr"
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"github.com/milvus-io/milvus/pkg/util/paramtable"
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"github.com/milvus-io/milvus/pkg/util/typeutil"
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)
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type LBPolicySuite struct {
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suite.Suite
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rc types.RootCoordClient
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qc *mocks.MockQueryCoordClient
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qn *mocks.MockQueryNodeClient
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mgr *MockShardClientManager
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lbBalancer *MockLBBalancer
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lbPolicy *LBPolicyImpl
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nodeIDs []int64
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nodes []nodeInfo
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channels []string
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qnList []*mocks.MockQueryNode
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collectionName string
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collectionID int64
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}
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func (s *LBPolicySuite) SetupSuite() {
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paramtable.Init()
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}
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func (s *LBPolicySuite) SetupTest() {
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s.nodeIDs = make([]int64, 0)
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for i := 1; i <= 5; i++ {
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s.nodeIDs = append(s.nodeIDs, int64(i))
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s.nodes = append(s.nodes, nodeInfo{
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nodeID: int64(i),
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address: "localhost",
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})
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}
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s.channels = []string{"channel1", "channel2"}
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successStatus := commonpb.Status{ErrorCode: commonpb.ErrorCode_Success}
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qc := mocks.NewMockQueryCoordClient(s.T())
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qc.EXPECT().LoadCollection(mock.Anything, mock.Anything).Return(&successStatus, nil)
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qc.EXPECT().ShowCollections(mock.Anything, mock.Anything).Return(&querypb.ShowCollectionsResponse{}, nil).Maybe()
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qc.EXPECT().GetShardLeaders(mock.Anything, mock.Anything).Return(&querypb.GetShardLeadersResponse{
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Status: &successStatus,
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Shards: []*querypb.ShardLeadersList{
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{
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ChannelName: s.channels[0],
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NodeIds: s.nodeIDs,
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NodeAddrs: []string{"localhost:9000", "localhost:9001", "localhost:9002", "localhost:9003", "localhost:9004"},
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},
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{
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ChannelName: s.channels[1],
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NodeIds: s.nodeIDs,
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NodeAddrs: []string{"localhost:9000", "localhost:9001", "localhost:9002", "localhost:9003", "localhost:9004"},
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},
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},
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}, nil).Maybe()
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qc.EXPECT().ShowPartitions(mock.Anything, mock.Anything).Return(&querypb.ShowPartitionsResponse{
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Status: merr.Success(),
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PartitionIDs: []int64{1, 2, 3},
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}, nil).Maybe()
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s.qc = qc
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s.rc = NewRootCoordMock()
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s.qn = mocks.NewMockQueryNodeClient(s.T())
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s.qn.EXPECT().GetComponentStates(mock.Anything, mock.Anything).Return(nil, nil).Maybe()
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s.mgr = NewMockShardClientManager(s.T())
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s.lbBalancer = NewMockLBBalancer(s.T())
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s.lbBalancer.EXPECT().Start(context.Background()).Maybe()
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s.lbPolicy = NewLBPolicyImpl(s.mgr)
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s.lbPolicy.Start(context.Background())
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s.lbPolicy.getBalancer = func() LBBalancer {
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return s.lbBalancer
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}
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err := InitMetaCache(context.Background(), s.rc, s.qc, s.mgr)
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s.NoError(err)
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s.collectionName = "test_lb_policy"
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s.loadCollection()
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}
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func (s *LBPolicySuite) loadCollection() {
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fieldName2Types := map[string]schemapb.DataType{
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testBoolField: schemapb.DataType_Bool,
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testInt32Field: schemapb.DataType_Int32,
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testInt64Field: schemapb.DataType_Int64,
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testFloatField: schemapb.DataType_Float,
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testDoubleField: schemapb.DataType_Double,
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testFloatVecField: schemapb.DataType_FloatVector,
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}
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if enableMultipleVectorFields {
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fieldName2Types[testBinaryVecField] = schemapb.DataType_BinaryVector
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}
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schema := constructCollectionSchemaByDataType(s.collectionName, fieldName2Types, testInt64Field, false)
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marshaledSchema, err := proto.Marshal(schema)
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s.NoError(err)
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ctx := context.Background()
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createColT := &createCollectionTask{
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Condition: NewTaskCondition(ctx),
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CreateCollectionRequest: &milvuspb.CreateCollectionRequest{
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CollectionName: s.collectionName,
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DbName: dbName,
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Schema: marshaledSchema,
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ShardsNum: common.DefaultShardsNum,
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},
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ctx: ctx,
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rootCoord: s.rc,
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}
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s.NoError(createColT.OnEnqueue())
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s.NoError(createColT.PreExecute(ctx))
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s.NoError(createColT.Execute(ctx))
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s.NoError(createColT.PostExecute(ctx))
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collectionID, err := globalMetaCache.GetCollectionID(ctx, dbName, s.collectionName)
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s.NoError(err)
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status, err := s.qc.LoadCollection(ctx, &querypb.LoadCollectionRequest{
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Base: &commonpb.MsgBase{
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MsgType: commonpb.MsgType_LoadCollection,
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SourceID: paramtable.GetNodeID(),
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},
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CollectionID: collectionID,
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})
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s.NoError(err)
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s.Equal(commonpb.ErrorCode_Success, status.ErrorCode)
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s.collectionID = collectionID
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}
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func (s *LBPolicySuite) TestSelectNode() {
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ctx := context.Background()
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s.lbBalancer.EXPECT().RegisterNodeInfo(mock.Anything)
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s.lbBalancer.EXPECT().SelectNode(mock.Anything, mock.Anything, mock.Anything).Return(5, nil)
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targetNode, err := s.lbPolicy.selectNode(ctx, s.lbBalancer, ChannelWorkload{
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db: dbName,
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collectionName: s.collectionName,
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collectionID: s.collectionID,
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channel: s.channels[0],
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shardLeaders: s.nodes,
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nq: 1,
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}, typeutil.NewUniqueSet())
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s.NoError(err)
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s.Equal(int64(5), targetNode.nodeID)
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// test select node failed, then update shard leader cache and retry, expect success
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s.lbBalancer.ExpectedCalls = nil
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s.lbBalancer.EXPECT().RegisterNodeInfo(mock.Anything)
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s.lbBalancer.EXPECT().SelectNode(mock.Anything, mock.Anything, mock.Anything).Return(-1, errors.New("fake err")).Times(1)
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s.lbBalancer.EXPECT().SelectNode(mock.Anything, mock.Anything, mock.Anything).Return(3, nil)
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targetNode, err = s.lbPolicy.selectNode(ctx, s.lbBalancer, ChannelWorkload{
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db: dbName,
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collectionName: s.collectionName,
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collectionID: s.collectionID,
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channel: s.channels[0],
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shardLeaders: []nodeInfo{},
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nq: 1,
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}, typeutil.NewUniqueSet())
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s.NoError(err)
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s.Equal(int64(3), targetNode.nodeID)
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// test select node always fails, expected failure
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s.lbBalancer.ExpectedCalls = nil
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s.lbBalancer.EXPECT().RegisterNodeInfo(mock.Anything)
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s.lbBalancer.EXPECT().SelectNode(mock.Anything, mock.Anything, mock.Anything).Return(-1, merr.ErrNodeNotAvailable)
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targetNode, err = s.lbPolicy.selectNode(ctx, s.lbBalancer, ChannelWorkload{
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db: dbName,
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collectionName: s.collectionName,
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collectionID: s.collectionID,
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channel: s.channels[0],
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shardLeaders: []nodeInfo{},
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nq: 1,
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}, typeutil.NewUniqueSet())
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s.ErrorIs(err, merr.ErrNodeNotAvailable)
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// test all nodes has been excluded, expected failure
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s.lbBalancer.ExpectedCalls = nil
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s.lbBalancer.EXPECT().RegisterNodeInfo(mock.Anything)
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s.lbBalancer.EXPECT().SelectNode(mock.Anything, mock.Anything, mock.Anything).Return(-1, merr.ErrNodeNotAvailable)
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targetNode, err = s.lbPolicy.selectNode(ctx, s.lbBalancer, ChannelWorkload{
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db: dbName,
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collectionName: s.collectionName,
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collectionID: s.collectionID,
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channel: s.channels[0],
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shardLeaders: s.nodes,
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nq: 1,
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}, typeutil.NewUniqueSet(s.nodeIDs...))
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s.ErrorIs(err, merr.ErrChannelNotAvailable)
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// test get shard leaders failed, retry to select node failed
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s.lbBalancer.ExpectedCalls = nil
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s.lbBalancer.EXPECT().RegisterNodeInfo(mock.Anything)
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s.lbBalancer.EXPECT().SelectNode(mock.Anything, mock.Anything, mock.Anything).Return(-1, merr.ErrNodeNotAvailable)
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s.qc.ExpectedCalls = nil
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s.qc.EXPECT().GetShardLeaders(mock.Anything, mock.Anything).Return(nil, merr.ErrServiceUnavailable)
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targetNode, err = s.lbPolicy.selectNode(ctx, s.lbBalancer, ChannelWorkload{
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db: dbName,
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collectionName: s.collectionName,
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collectionID: s.collectionID,
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channel: s.channels[0],
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shardLeaders: s.nodes,
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nq: 1,
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}, typeutil.NewUniqueSet())
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s.ErrorIs(err, merr.ErrServiceUnavailable)
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}
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func (s *LBPolicySuite) TestExecuteWithRetry() {
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ctx := context.Background()
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// test execute success
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s.lbBalancer.ExpectedCalls = nil
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s.mgr.EXPECT().ReleaseClientRef(mock.Anything)
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s.mgr.EXPECT().GetClient(mock.Anything, mock.Anything).Return(s.qn, nil)
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s.lbBalancer.EXPECT().RegisterNodeInfo(mock.Anything)
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s.lbBalancer.EXPECT().SelectNode(mock.Anything, mock.Anything, mock.Anything).Return(1, nil)
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s.lbBalancer.EXPECT().CancelWorkload(mock.Anything, mock.Anything)
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err := s.lbPolicy.ExecuteWithRetry(ctx, ChannelWorkload{
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db: dbName,
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collectionName: s.collectionName,
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collectionID: s.collectionID,
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channel: s.channels[0],
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shardLeaders: s.nodes,
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nq: 1,
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exec: func(ctx context.Context, ui UniqueID, qn types.QueryNodeClient, channel string) error {
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return nil
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},
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retryTimes: 1,
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})
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s.NoError(err)
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// test select node failed, expected error
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s.lbBalancer.ExpectedCalls = nil
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s.lbBalancer.EXPECT().RegisterNodeInfo(mock.Anything)
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s.lbBalancer.EXPECT().SelectNode(mock.Anything, mock.Anything, mock.Anything).Return(-1, merr.ErrNodeNotAvailable)
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err = s.lbPolicy.ExecuteWithRetry(ctx, ChannelWorkload{
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db: dbName,
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collectionName: s.collectionName,
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collectionID: s.collectionID,
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channel: s.channels[0],
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shardLeaders: s.nodes,
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nq: 1,
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exec: func(ctx context.Context, ui UniqueID, qn types.QueryNodeClient, channel string) error {
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return nil
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},
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retryTimes: 1,
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})
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s.ErrorIs(err, merr.ErrNodeNotAvailable)
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// test get client failed, and retry failed, expected success
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s.mgr.ExpectedCalls = nil
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s.mgr.EXPECT().ReleaseClientRef(mock.Anything)
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s.mgr.EXPECT().GetClient(mock.Anything, mock.Anything).Return(nil, errors.New("fake error")).Times(1)
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s.lbBalancer.ExpectedCalls = nil
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s.lbBalancer.EXPECT().RegisterNodeInfo(mock.Anything)
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s.lbBalancer.EXPECT().SelectNode(mock.Anything, mock.Anything, mock.Anything).Return(1, nil)
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s.lbBalancer.EXPECT().CancelWorkload(mock.Anything, mock.Anything)
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err = s.lbPolicy.ExecuteWithRetry(ctx, ChannelWorkload{
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db: dbName,
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collectionName: s.collectionName,
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collectionID: s.collectionID,
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channel: s.channels[0],
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shardLeaders: s.nodes,
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nq: 1,
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exec: func(ctx context.Context, ui UniqueID, qn types.QueryNodeClient, channel string) error {
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return nil
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},
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retryTimes: 1,
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})
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s.Error(err)
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s.mgr.ExpectedCalls = nil
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s.mgr.EXPECT().ReleaseClientRef(mock.Anything)
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s.mgr.EXPECT().GetClient(mock.Anything, mock.Anything).Return(nil, errors.New("fake error")).Times(1)
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s.mgr.EXPECT().GetClient(mock.Anything, mock.Anything).Return(s.qn, nil)
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s.lbBalancer.EXPECT().RegisterNodeInfo(mock.Anything)
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s.lbBalancer.EXPECT().CancelWorkload(mock.Anything, mock.Anything)
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err = s.lbPolicy.ExecuteWithRetry(ctx, ChannelWorkload{
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db: dbName,
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collectionName: s.collectionName,
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collectionID: s.collectionID,
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channel: s.channels[0],
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shardLeaders: s.nodes,
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nq: 1,
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exec: func(ctx context.Context, ui UniqueID, qn types.QueryNodeClient, channel string) error {
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return nil
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},
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retryTimes: 2,
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})
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s.NoError(err)
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// test exec failed, then retry success
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s.mgr.ExpectedCalls = nil
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s.mgr.EXPECT().ReleaseClientRef(mock.Anything)
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s.mgr.EXPECT().GetClient(mock.Anything, mock.Anything).Return(s.qn, nil)
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s.lbBalancer.ExpectedCalls = nil
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s.lbBalancer.EXPECT().RegisterNodeInfo(mock.Anything)
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s.lbBalancer.EXPECT().SelectNode(mock.Anything, mock.Anything, mock.Anything).Return(1, nil)
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s.lbBalancer.EXPECT().CancelWorkload(mock.Anything, mock.Anything)
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counter := 0
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err = s.lbPolicy.ExecuteWithRetry(ctx, ChannelWorkload{
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db: dbName,
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collectionName: s.collectionName,
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collectionID: s.collectionID,
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channel: s.channels[0],
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shardLeaders: s.nodes,
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nq: 1,
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exec: func(ctx context.Context, ui UniqueID, qn types.QueryNodeClient, channel string) error {
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counter++
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if counter == 1 {
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return errors.New("fake error")
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}
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return nil
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},
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retryTimes: 2,
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})
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s.NoError(err)
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// test exec timeout
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s.mgr.ExpectedCalls = nil
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s.mgr.EXPECT().GetClient(mock.Anything, mock.Anything).Return(s.qn, nil)
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s.mgr.EXPECT().ReleaseClientRef(mock.Anything)
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s.lbBalancer.EXPECT().CancelWorkload(mock.Anything, mock.Anything)
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s.qn.EXPECT().GetComponentStates(mock.Anything, mock.Anything).Return(nil, nil).Maybe()
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s.qn.EXPECT().Search(mock.Anything, mock.Anything).Return(nil, context.Canceled).Times(1)
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s.qn.EXPECT().Search(mock.Anything, mock.Anything).Return(nil, context.DeadlineExceeded)
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err = s.lbPolicy.ExecuteWithRetry(ctx, ChannelWorkload{
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db: dbName,
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collectionName: s.collectionName,
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collectionID: s.collectionID,
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channel: s.channels[0],
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shardLeaders: s.nodes,
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nq: 1,
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exec: func(ctx context.Context, ui UniqueID, qn types.QueryNodeClient, channel string) error {
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_, err := qn.Search(ctx, nil)
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return err
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},
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retryTimes: 2,
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})
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s.True(merr.IsCanceledOrTimeout(err))
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}
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func (s *LBPolicySuite) TestExecute() {
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ctx := context.Background()
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mockErr := errors.New("mock error")
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// test all channel success
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s.mgr.EXPECT().ReleaseClientRef(mock.Anything)
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s.mgr.EXPECT().GetClient(mock.Anything, mock.Anything).Return(s.qn, nil)
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s.lbBalancer.EXPECT().RegisterNodeInfo(mock.Anything)
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s.lbBalancer.EXPECT().SelectNode(mock.Anything, mock.Anything, mock.Anything).Return(1, nil)
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s.lbBalancer.EXPECT().CancelWorkload(mock.Anything, mock.Anything)
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err := s.lbPolicy.Execute(ctx, CollectionWorkLoad{
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db: dbName,
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collectionName: s.collectionName,
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collectionID: s.collectionID,
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nq: 1,
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exec: func(ctx context.Context, ui UniqueID, qn types.QueryNodeClient, channel string) error {
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return nil
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},
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})
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s.NoError(err)
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// test some channel failed
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counter := atomic.NewInt64(0)
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err = s.lbPolicy.Execute(ctx, CollectionWorkLoad{
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db: dbName,
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collectionName: s.collectionName,
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collectionID: s.collectionID,
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nq: 1,
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exec: func(ctx context.Context, ui UniqueID, qn types.QueryNodeClient, channel string) error {
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// succeed in first execute
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if counter.Add(1) == 1 {
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return nil
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}
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return mockErr
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},
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})
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s.Error(err)
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s.Equal(int64(11), counter.Load())
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// test get shard leader failed
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s.qc.ExpectedCalls = nil
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globalMetaCache.DeprecateShardCache(dbName, s.collectionName)
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s.qc.EXPECT().GetShardLeaders(mock.Anything, mock.Anything).Return(nil, mockErr)
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err = s.lbPolicy.Execute(ctx, CollectionWorkLoad{
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db: dbName,
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collectionName: s.collectionName,
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collectionID: s.collectionID,
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nq: 1,
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exec: func(ctx context.Context, ui UniqueID, qn types.QueryNodeClient, channel string) error {
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return nil
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},
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})
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s.ErrorIs(err, mockErr)
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}
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func (s *LBPolicySuite) TestUpdateCostMetrics() {
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s.lbBalancer.EXPECT().UpdateCostMetrics(mock.Anything, mock.Anything)
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s.lbPolicy.UpdateCostMetrics(1, &internalpb.CostAggregation{})
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}
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func (s *LBPolicySuite) TestNewLBPolicy() {
|
|
policy := NewLBPolicyImpl(s.mgr)
|
|
s.Equal(reflect.TypeOf(policy.getBalancer()).String(), "*proxy.LookAsideBalancer")
|
|
policy.Close()
|
|
|
|
Params.Save(Params.ProxyCfg.ReplicaSelectionPolicy.Key, "round_robin")
|
|
policy = NewLBPolicyImpl(s.mgr)
|
|
s.Equal(reflect.TypeOf(policy.getBalancer()).String(), "*proxy.RoundRobinBalancer")
|
|
policy.Close()
|
|
|
|
Params.Save(Params.ProxyCfg.ReplicaSelectionPolicy.Key, "look_aside")
|
|
policy = NewLBPolicyImpl(s.mgr)
|
|
s.Equal(reflect.TypeOf(policy.getBalancer()).String(), "*proxy.LookAsideBalancer")
|
|
policy.Close()
|
|
}
|
|
|
|
func (s *LBPolicySuite) TestGetShardLeaders() {
|
|
ctx := context.Background()
|
|
|
|
// ErrCollectionNotFullyLoaded is retriable, expected to retry until ctx done or success
|
|
counter := atomic.NewInt64(0)
|
|
globalMetaCache.DeprecateShardCache(dbName, s.collectionName)
|
|
s.qc.ExpectedCalls = nil
|
|
s.qc.EXPECT().GetShardLeaders(mock.Anything, mock.Anything).RunAndReturn(
|
|
func(ctx context.Context, req *querypb.GetShardLeadersRequest, opts ...grpc.CallOption) (*querypb.GetShardLeadersResponse, error) {
|
|
counter.Inc()
|
|
return nil, merr.ErrCollectionNotFullyLoaded
|
|
}).Times(5)
|
|
s.qc.EXPECT().GetShardLeaders(mock.Anything, mock.Anything).RunAndReturn(
|
|
func(ctx context.Context, req *querypb.GetShardLeadersRequest, opts ...grpc.CallOption) (*querypb.GetShardLeadersResponse, error) {
|
|
log.Info("return rpc success")
|
|
return nil, nil
|
|
}).Times(5)
|
|
_, err := s.lbPolicy.GetShardLeaders(ctx, dbName, s.collectionName, s.collectionID, true)
|
|
s.NoError(err)
|
|
s.Equal(int64(5), counter.Load())
|
|
|
|
// ErrServiceUnavailable is not retriable, expected to fail fast
|
|
counter.Store(0)
|
|
globalMetaCache.DeprecateShardCache(dbName, s.collectionName)
|
|
s.qc.ExpectedCalls = nil
|
|
s.qc.EXPECT().GetShardLeaders(mock.Anything, mock.Anything).RunAndReturn(
|
|
func(ctx context.Context, req *querypb.GetShardLeadersRequest, opts ...grpc.CallOption) (*querypb.GetShardLeadersResponse, error) {
|
|
counter.Inc()
|
|
return nil, merr.ErrCollectionNotLoaded
|
|
})
|
|
_, err = s.lbPolicy.GetShardLeaders(ctx, dbName, s.collectionName, s.collectionID, true)
|
|
log.Info("check err", zap.Error(err))
|
|
s.Error(err)
|
|
s.Equal(int64(1), counter.Load())
|
|
}
|
|
|
|
func TestLBPolicySuite(t *testing.T) {
|
|
suite.Run(t, new(LBPolicySuite))
|
|
}
|