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https://gitee.com/milvus-io/milvus.git
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issue: https://github.com/milvus-io/milvus/issues/41690 This commit implements partial search result functionality when query nodes go down, improving system availability during node failures. The changes include: - Enhanced load balancing in proxy (lb_policy.go) to handle node failures with retry support - Added partial search result capability in querynode delegator and distribution logic - Implemented tests for various partial result scenarios when nodes go down - Added metrics to track partial search results in querynode_metrics.go - Updated parameter configuration to support partial result required data ratio - Replaced old partial_search_test.go with more comprehensive partial_result_on_node_down_test.go - Updated proto definitions and improved retry logic These changes improve query resilience by returning partial results to users when some query nodes are unavailable, ensuring that queries don't completely fail when a portion of data remains accessible. --------- Signed-off-by: Wei Liu <wei.liu@zilliz.com>
237 lines
7.1 KiB
Go
237 lines
7.1 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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"testing"
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"time"
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"github.com/stretchr/testify/mock"
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"github.com/stretchr/testify/suite"
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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/types"
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"github.com/milvus-io/milvus/pkg/v2/common"
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"github.com/milvus-io/milvus/pkg/v2/proto/internalpb"
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"github.com/milvus-io/milvus/pkg/v2/proto/querypb"
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"github.com/milvus-io/milvus/pkg/v2/util/merr"
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"github.com/milvus-io/milvus/pkg/v2/util/paramtable"
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"github.com/milvus-io/milvus/pkg/v2/util/typeutil"
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)
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type StatisticTaskSuite struct {
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suite.Suite
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mixc types.MixCoordClient
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qn *mocks.MockQueryNodeClient
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lb LBPolicy
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collectionName string
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collectionID int64
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}
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func (s *StatisticTaskSuite) SetupSuite() {
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paramtable.Init()
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}
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func (s *StatisticTaskSuite) SetupTest() {
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successStatus := commonpb.Status{ErrorCode: commonpb.ErrorCode_Success}
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mixc := NewMixCoordMock()
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mixc.GetShardLeadersFunc = func(ctx context.Context, req *querypb.GetShardLeadersRequest, opts ...grpc.CallOption) (*querypb.GetShardLeadersResponse, error) {
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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: "channel-1",
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NodeIds: []int64{1, 2, 3},
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NodeAddrs: []string{"localhost:9000", "localhost:9001", "localhost:9002"},
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Serviceable: []bool{true, true, true},
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},
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},
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}, nil
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}
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mixc.ShowLoadPartitionsFunc = func(ctx context.Context, req *querypb.ShowPartitionsRequest, opts ...grpc.CallOption) (*querypb.ShowPartitionsResponse, error) {
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return &querypb.ShowPartitionsResponse{
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Status: &successStatus,
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PartitionIDs: []int64{1, 2, 3},
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}, nil
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}
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s.mixc = mixc
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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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mgr := NewMockShardClientManager(s.T())
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mgr.EXPECT().GetClient(mock.Anything, mock.Anything).Return(s.qn, nil).Maybe()
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s.lb = NewLBPolicyImpl(mgr)
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err := InitMetaCache(context.Background(), s.mixc, mgr)
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s.NoError(err)
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s.collectionName = "test_statistics_task"
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s.loadCollection()
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}
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func (s *StatisticTaskSuite) 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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Schema: marshaledSchema,
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ShardsNum: common.DefaultShardsNum,
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},
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ctx: ctx,
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mixCoord: s.mixc,
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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, GetCurDBNameFromContextOrDefault(ctx), s.collectionName)
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s.NoError(err)
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status, err := s.mixc.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 *StatisticTaskSuite) TearDownSuite() {
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s.mixc.Close()
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}
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func (s *StatisticTaskSuite) TestStatisticTask_Timeout() {
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ctx := context.Background()
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task := s.getStatisticsTask(ctx)
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s.NoError(task.OnEnqueue())
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// test query task with timeout
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ctx1, cancel1 := context.WithTimeout(ctx, 10*time.Second)
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defer cancel1()
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// before preExecute
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s.Equal(typeutil.ZeroTimestamp, task.TimeoutTimestamp)
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task.ctx = ctx1
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s.NoError(task.PreExecute(ctx))
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// after preExecute
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s.Greater(task.TimeoutTimestamp, typeutil.ZeroTimestamp)
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}
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func (s *StatisticTaskSuite) getStatisticsTask(ctx context.Context) *getStatisticsTask {
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return &getStatisticsTask{
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Condition: NewTaskCondition(ctx),
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ctx: ctx,
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collectionName: s.collectionName,
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result: &milvuspb.GetStatisticsResponse{
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Status: merr.Success(),
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},
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request: &milvuspb.GetStatisticsRequest{
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Base: &commonpb.MsgBase{
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MsgType: commonpb.MsgType_Retrieve,
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SourceID: paramtable.GetNodeID(),
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},
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CollectionName: s.collectionName,
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},
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mixc: s.mixc,
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lb: s.lb,
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}
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}
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func (s *StatisticTaskSuite) TestStatisticTask_NotShardLeader() {
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ctx := context.Background()
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task := s.getStatisticsTask(ctx)
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s.NoError(task.OnEnqueue())
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task.fromQueryNode = true
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s.qn.EXPECT().GetStatistics(mock.Anything, mock.Anything).Return(&internalpb.GetStatisticsResponse{
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Status: &commonpb.Status{
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ErrorCode: commonpb.ErrorCode_NotShardLeader,
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Reason: "error",
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},
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}, nil)
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s.NoError(task.PreExecute(ctx))
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s.Error(task.Execute(ctx))
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s.NoError(task.PostExecute(ctx))
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}
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func (s *StatisticTaskSuite) TestStatisticTask_UnexpectedError() {
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ctx := context.Background()
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task := s.getStatisticsTask(ctx)
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s.NoError(task.OnEnqueue())
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task.fromQueryNode = true
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s.qn.EXPECT().GetStatistics(mock.Anything, mock.Anything).Return(&internalpb.GetStatisticsResponse{
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Status: &commonpb.Status{
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ErrorCode: commonpb.ErrorCode_UnexpectedError,
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Reason: "error",
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},
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}, nil)
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s.NoError(task.PreExecute(ctx))
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s.Error(task.Execute(ctx))
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s.NoError(task.PostExecute(ctx))
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}
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func (s *StatisticTaskSuite) TestStatisticTask_Success() {
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ctx := context.Background()
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task := s.getStatisticsTask(ctx)
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s.NoError(task.OnEnqueue())
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s.qn.EXPECT().GetStatistics(mock.Anything, mock.Anything).Return(nil, nil)
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s.NoError(task.PreExecute(ctx))
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task.fromQueryNode = true
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task.fromDataCoord = false
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s.NoError(task.Execute(ctx))
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s.NoError(task.PostExecute(ctx))
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}
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func TestStatisticTaskSuite(t *testing.T) {
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suite.Run(t, new(StatisticTaskSuite))
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}
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