// 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 querynode import ( "context" "fmt" "go.uber.org/zap" "github.com/milvus-io/milvus/internal/common" "github.com/milvus-io/milvus/internal/log" "github.com/milvus-io/milvus/internal/proto/commonpb" "github.com/milvus-io/milvus/internal/proto/internalpb" "github.com/milvus-io/milvus/internal/proto/milvuspb" queryPb "github.com/milvus-io/milvus/internal/proto/querypb" "github.com/milvus-io/milvus/internal/util/metricsinfo" "github.com/milvus-io/milvus/internal/util/typeutil" ) // GetComponentStates returns information about whether the node is healthy func (node *QueryNode) GetComponentStates(ctx context.Context) (*internalpb.ComponentStates, error) { log.Debug("Get QueryNode component states") stats := &internalpb.ComponentStates{ Status: &commonpb.Status{ ErrorCode: commonpb.ErrorCode_Success, }, } code, ok := node.stateCode.Load().(internalpb.StateCode) if !ok { errMsg := "unexpected error in type assertion" stats.Status = &commonpb.Status{ ErrorCode: commonpb.ErrorCode_UnexpectedError, Reason: errMsg, } return stats, nil } nodeID := common.NotRegisteredID if node.session != nil && node.session.Registered() { nodeID = node.session.ServerID } info := &internalpb.ComponentInfo{ NodeID: nodeID, Role: typeutil.QueryNodeRole, StateCode: code, } stats.State = info log.Debug("Get QueryNode component state done", zap.Any("stateCode", info.StateCode)) return stats, nil } // GetTimeTickChannel returns the time tick channel // TimeTickChannel contains many time tick messages, which will be sent by query nodes func (node *QueryNode) GetTimeTickChannel(ctx context.Context) (*milvuspb.StringResponse, error) { return &milvuspb.StringResponse{ Status: &commonpb.Status{ ErrorCode: commonpb.ErrorCode_Success, Reason: "", }, Value: Params.MsgChannelCfg.QueryCoordTimeTick, }, nil } // GetStatisticsChannel returns the statistics channel // Statistics channel contains statistics infos of query nodes, such as segment infos, memory infos func (node *QueryNode) GetStatisticsChannel(ctx context.Context) (*milvuspb.StringResponse, error) { return &milvuspb.StringResponse{ Status: &commonpb.Status{ ErrorCode: commonpb.ErrorCode_Success, Reason: "", }, Value: Params.MsgChannelCfg.QueryNodeStats, }, nil } // AddQueryChannel watch queryChannel of the collection to receive query message func (node *QueryNode) AddQueryChannel(ctx context.Context, in *queryPb.AddQueryChannelRequest) (*commonpb.Status, error) { code := node.stateCode.Load().(internalpb.StateCode) if code != internalpb.StateCode_Healthy { err := fmt.Errorf("query node %d is not ready", Params.QueryNodeCfg.QueryNodeID) status := &commonpb.Status{ ErrorCode: commonpb.ErrorCode_UnexpectedError, Reason: err.Error(), } return status, nil } dct := &addQueryChannelTask{ baseTask: baseTask{ ctx: ctx, done: make(chan error), }, req: in, node: node, } err := node.scheduler.queue.Enqueue(dct) if err != nil { status := &commonpb.Status{ ErrorCode: commonpb.ErrorCode_UnexpectedError, Reason: err.Error(), } log.Error(err.Error()) return status, nil } log.Debug("addQueryChannelTask Enqueue done", zap.Int64("collectionID", in.CollectionID), zap.String("queryChannel", in.QueryChannel), zap.String("queryResultChannel", in.QueryResultChannel), ) waitFunc := func() (*commonpb.Status, error) { err = dct.WaitToFinish() if err != nil { status := &commonpb.Status{ ErrorCode: commonpb.ErrorCode_UnexpectedError, Reason: err.Error(), } log.Error(err.Error()) return status, nil } log.Debug("addQueryChannelTask WaitToFinish done", zap.Int64("collectionID", in.CollectionID), zap.String("queryChannel", in.QueryChannel), zap.String("queryResultChannel", in.QueryResultChannel), ) return &commonpb.Status{ ErrorCode: commonpb.ErrorCode_Success, }, nil } return waitFunc() } // RemoveQueryChannel remove queryChannel of the collection to stop receiving query message func (node *QueryNode) RemoveQueryChannel(ctx context.Context, in *queryPb.RemoveQueryChannelRequest) (*commonpb.Status, error) { // if node.searchService == nil || node.searchService.searchMsgStream == nil { // errMsg := "null search service or null search result message stream" // status := &commonpb.Status{ // ErrorCode: commonpb.ErrorCode_UnexpectedError, // Reason: errMsg, // } // return status, errors.New(errMsg) // } // searchStream, ok := node.searchService.searchMsgStream.(*pulsarms.PulsarMsgStream) // if !ok { // errMsg := "type assertion failed for search message stream" // status := &commonpb.Status{ // ErrorCode: commonpb.ErrorCode_UnexpectedError, // Reason: errMsg, // } // return status, errors.New(errMsg) // } // resultStream, ok := node.searchService.searchResultMsgStream.(*pulsarms.PulsarMsgStream) // if !ok { // errMsg := "type assertion failed for search result message stream" // status := &commonpb.Status{ // ErrorCode: commonpb.ErrorCode_UnexpectedError, // Reason: errMsg, // } // return status, errors.New(errMsg) // } // // remove request channel // consumeChannels := []string{in.RequestChannelID} // consumeSubName := Params.MsgChannelSubName // // TODO: searchStream.RemovePulsarConsumers(producerChannels) // searchStream.AsConsumer(consumeChannels, consumeSubName) // // remove result channel // producerChannels := []string{in.ResultChannelID} // // TODO: resultStream.RemovePulsarProducer(producerChannels) // resultStream.AsProducer(producerChannels) status := &commonpb.Status{ ErrorCode: commonpb.ErrorCode_Success, } return status, nil } // WatchDmChannels create consumers on dmChannels to receive Incremental data,which is the important part of real-time query func (node *QueryNode) WatchDmChannels(ctx context.Context, in *queryPb.WatchDmChannelsRequest) (*commonpb.Status, error) { code := node.stateCode.Load().(internalpb.StateCode) if code != internalpb.StateCode_Healthy { err := fmt.Errorf("query node %d is not ready", Params.QueryNodeCfg.QueryNodeID) status := &commonpb.Status{ ErrorCode: commonpb.ErrorCode_UnexpectedError, Reason: err.Error(), } return status, nil } dct := &watchDmChannelsTask{ baseTask: baseTask{ ctx: ctx, done: make(chan error), }, req: in, node: node, } err := node.scheduler.queue.Enqueue(dct) if err != nil { status := &commonpb.Status{ ErrorCode: commonpb.ErrorCode_UnexpectedError, Reason: err.Error(), } log.Error(err.Error()) return status, nil } log.Debug("watchDmChannelsTask Enqueue done", zap.Int64("collectionID", in.CollectionID), zap.Int64("nodeID", Params.QueryNodeCfg.QueryNodeID)) waitFunc := func() (*commonpb.Status, error) { err = dct.WaitToFinish() if err != nil { status := &commonpb.Status{ ErrorCode: commonpb.ErrorCode_UnexpectedError, Reason: err.Error(), } log.Error(err.Error()) return status, nil } log.Debug("watchDmChannelsTask WaitToFinish done", zap.Int64("collectionID", in.CollectionID), zap.Int64("nodeID", Params.QueryNodeCfg.QueryNodeID)) return &commonpb.Status{ ErrorCode: commonpb.ErrorCode_Success, }, nil } return waitFunc() } // WatchDeltaChannels create consumers on dmChannels to receive Incremental data,which is the important part of real-time query func (node *QueryNode) WatchDeltaChannels(ctx context.Context, in *queryPb.WatchDeltaChannelsRequest) (*commonpb.Status, error) { code := node.stateCode.Load().(internalpb.StateCode) if code != internalpb.StateCode_Healthy { err := fmt.Errorf("query node %d is not ready", Params.QueryNodeCfg.QueryNodeID) status := &commonpb.Status{ ErrorCode: commonpb.ErrorCode_UnexpectedError, Reason: err.Error(), } return status, nil } dct := &watchDeltaChannelsTask{ baseTask: baseTask{ ctx: ctx, done: make(chan error), }, req: in, node: node, } err := node.scheduler.queue.Enqueue(dct) if err != nil { status := &commonpb.Status{ ErrorCode: commonpb.ErrorCode_UnexpectedError, Reason: err.Error(), } log.Error(err.Error()) return status, nil } log.Debug("watchDeltaChannelsTask Enqueue done", zap.Int64("collectionID", in.CollectionID), zap.Int64("nodeID", Params.QueryNodeCfg.QueryNodeID)) waitFunc := func() (*commonpb.Status, error) { err = dct.WaitToFinish() if err != nil { status := &commonpb.Status{ ErrorCode: commonpb.ErrorCode_UnexpectedError, Reason: err.Error(), } log.Error(err.Error()) return status, nil } log.Debug("watchDeltaChannelsTask WaitToFinish done", zap.Int64("collectionID", in.CollectionID), zap.Int64("nodeID", Params.QueryNodeCfg.QueryNodeID)) return &commonpb.Status{ ErrorCode: commonpb.ErrorCode_Success, }, nil } return waitFunc() } // LoadSegments load historical data into query node, historical data can be vector data or index func (node *QueryNode) LoadSegments(ctx context.Context, in *queryPb.LoadSegmentsRequest) (*commonpb.Status, error) { code := node.stateCode.Load().(internalpb.StateCode) if code != internalpb.StateCode_Healthy { err := fmt.Errorf("query node %d is not ready", Params.QueryNodeCfg.QueryNodeID) status := &commonpb.Status{ ErrorCode: commonpb.ErrorCode_UnexpectedError, Reason: err.Error(), } return status, nil } dct := &loadSegmentsTask{ baseTask: baseTask{ ctx: ctx, done: make(chan error), }, req: in, node: node, } err := node.scheduler.queue.Enqueue(dct) if err != nil { status := &commonpb.Status{ ErrorCode: commonpb.ErrorCode_UnexpectedError, Reason: err.Error(), } log.Error(err.Error()) return status, nil } segmentIDs := make([]UniqueID, 0) for _, info := range in.Infos { segmentIDs = append(segmentIDs, info.SegmentID) } log.Debug("loadSegmentsTask Enqueue done", zap.Int64("collectionID", in.CollectionID), zap.Int64s("segmentIDs", segmentIDs), zap.Int64("nodeID", Params.QueryNodeCfg.QueryNodeID)) waitFunc := func() (*commonpb.Status, error) { err = dct.WaitToFinish() if err != nil { status := &commonpb.Status{ ErrorCode: commonpb.ErrorCode_UnexpectedError, Reason: err.Error(), } log.Error(err.Error()) return status, nil } log.Debug("loadSegmentsTask WaitToFinish done", zap.Int64("collectionID", in.CollectionID), zap.Int64s("segmentIDs", segmentIDs), zap.Int64("nodeID", Params.QueryNodeCfg.QueryNodeID)) return &commonpb.Status{ ErrorCode: commonpb.ErrorCode_Success, }, nil } return waitFunc() } // ReleaseCollection clears all data related to this collection on the querynode func (node *QueryNode) ReleaseCollection(ctx context.Context, in *queryPb.ReleaseCollectionRequest) (*commonpb.Status, error) { code := node.stateCode.Load().(internalpb.StateCode) if code != internalpb.StateCode_Healthy { err := fmt.Errorf("query node %d is not ready", Params.QueryNodeCfg.QueryNodeID) status := &commonpb.Status{ ErrorCode: commonpb.ErrorCode_UnexpectedError, Reason: err.Error(), } return status, nil } dct := &releaseCollectionTask{ baseTask: baseTask{ ctx: ctx, done: make(chan error), }, req: in, node: node, } err := node.scheduler.queue.Enqueue(dct) if err != nil { status := &commonpb.Status{ ErrorCode: commonpb.ErrorCode_UnexpectedError, Reason: err.Error(), } log.Error(err.Error()) return status, nil } log.Debug("releaseCollectionTask Enqueue done", zap.Int64("collectionID", in.CollectionID)) func() { err = dct.WaitToFinish() if err != nil { log.Error(err.Error()) return } log.Debug("releaseCollectionTask WaitToFinish done", zap.Int64("collectionID", in.CollectionID)) }() status := &commonpb.Status{ ErrorCode: commonpb.ErrorCode_Success, } return status, nil } // ReleasePartitions clears all data related to this partition on the querynode func (node *QueryNode) ReleasePartitions(ctx context.Context, in *queryPb.ReleasePartitionsRequest) (*commonpb.Status, error) { code := node.stateCode.Load().(internalpb.StateCode) if code != internalpb.StateCode_Healthy { err := fmt.Errorf("query node %d is not ready", Params.QueryNodeCfg.QueryNodeID) status := &commonpb.Status{ ErrorCode: commonpb.ErrorCode_UnexpectedError, Reason: err.Error(), } return status, nil } dct := &releasePartitionsTask{ baseTask: baseTask{ ctx: ctx, done: make(chan error), }, req: in, node: node, } err := node.scheduler.queue.Enqueue(dct) if err != nil { status := &commonpb.Status{ ErrorCode: commonpb.ErrorCode_UnexpectedError, Reason: err.Error(), } log.Error(err.Error()) return status, nil } log.Debug("releasePartitionsTask Enqueue done", zap.Int64("collectionID", in.CollectionID), zap.Int64s("partitionIDs", in.PartitionIDs)) func() { err = dct.WaitToFinish() if err != nil { log.Error(err.Error()) return } log.Debug("releasePartitionsTask WaitToFinish done", zap.Int64("collectionID", in.CollectionID), zap.Int64s("partitionIDs", in.PartitionIDs)) }() status := &commonpb.Status{ ErrorCode: commonpb.ErrorCode_Success, } return status, nil } // ReleaseSegments remove the specified segments from query node according segmentIDs, partitionIDs, and collectionID func (node *QueryNode) ReleaseSegments(ctx context.Context, in *queryPb.ReleaseSegmentsRequest) (*commonpb.Status, error) { code := node.stateCode.Load().(internalpb.StateCode) if code != internalpb.StateCode_Healthy { err := fmt.Errorf("query node %d is not ready", Params.QueryNodeCfg.QueryNodeID) status := &commonpb.Status{ ErrorCode: commonpb.ErrorCode_UnexpectedError, Reason: err.Error(), } return status, nil } status := &commonpb.Status{ ErrorCode: commonpb.ErrorCode_Success, } for _, id := range in.SegmentIDs { err := node.historical.replica.removeSegment(id) if err != nil { // not return, try to release all segments status.ErrorCode = commonpb.ErrorCode_UnexpectedError status.Reason = err.Error() } err = node.streaming.replica.removeSegment(id) if err != nil { // not return, try to release all segments status.ErrorCode = commonpb.ErrorCode_UnexpectedError status.Reason = err.Error() } } log.Debug("release segments done", zap.Int64("collectionID", in.CollectionID), zap.Int64s("segmentIDs", in.SegmentIDs)) return status, nil } // GetSegmentInfo returns segment information of the collection on the queryNode, and the information includes memSize, numRow, indexName, indexID ... func (node *QueryNode) GetSegmentInfo(ctx context.Context, in *queryPb.GetSegmentInfoRequest) (*queryPb.GetSegmentInfoResponse, error) { code := node.stateCode.Load().(internalpb.StateCode) if code != internalpb.StateCode_Healthy { err := fmt.Errorf("query node %d is not ready", Params.QueryNodeCfg.QueryNodeID) res := &queryPb.GetSegmentInfoResponse{ Status: &commonpb.Status{ ErrorCode: commonpb.ErrorCode_UnexpectedError, Reason: err.Error(), }, } return res, nil } infos := make([]*queryPb.SegmentInfo, 0) // get info from historical // node.historical.replica.printReplica() historicalSegmentInfos, err := node.historical.replica.getSegmentInfosByColID(in.CollectionID) if err != nil { log.Debug("GetSegmentInfo: get historical segmentInfo failed", zap.Int64("collectionID", in.CollectionID), zap.Error(err)) res := &queryPb.GetSegmentInfoResponse{ Status: &commonpb.Status{ ErrorCode: commonpb.ErrorCode_UnexpectedError, Reason: err.Error(), }, } return res, nil } infos = append(infos, historicalSegmentInfos...) // get info from streaming // node.streaming.replica.printReplica() streamingSegmentInfos, err := node.streaming.replica.getSegmentInfosByColID(in.CollectionID) if err != nil { log.Debug("GetSegmentInfo: get streaming segmentInfo failed", zap.Int64("collectionID", in.CollectionID), zap.Error(err)) res := &queryPb.GetSegmentInfoResponse{ Status: &commonpb.Status{ ErrorCode: commonpb.ErrorCode_UnexpectedError, Reason: err.Error(), }, } return res, nil } infos = append(infos, streamingSegmentInfos...) // log.Debug("GetSegmentInfo: get segment info from query node", zap.Int64("nodeID", node.session.ServerID), zap.Any("segment infos", infos)) return &queryPb.GetSegmentInfoResponse{ Status: &commonpb.Status{ ErrorCode: commonpb.ErrorCode_Success, }, Infos: infos, }, nil } // isHealthy checks if QueryNode is healthy func (node *QueryNode) isHealthy() bool { code := node.stateCode.Load().(internalpb.StateCode) return code == internalpb.StateCode_Healthy } // GetMetrics return system infos of the query node, such as total memory, memory usage, cpu usage ... // TODO(dragondriver): cache the Metrics and set a retention to the cache func (node *QueryNode) GetMetrics(ctx context.Context, req *milvuspb.GetMetricsRequest) (*milvuspb.GetMetricsResponse, error) { if !node.isHealthy() { log.Warn("QueryNode.GetMetrics failed", zap.Int64("node_id", Params.QueryNodeCfg.QueryNodeID), zap.String("req", req.Request), zap.Error(errQueryNodeIsUnhealthy(Params.QueryNodeCfg.QueryNodeID))) return &milvuspb.GetMetricsResponse{ Status: &commonpb.Status{ ErrorCode: commonpb.ErrorCode_UnexpectedError, Reason: msgQueryNodeIsUnhealthy(Params.QueryNodeCfg.QueryNodeID), }, Response: "", }, nil } metricType, err := metricsinfo.ParseMetricType(req.Request) if err != nil { log.Warn("QueryNode.GetMetrics failed to parse metric type", zap.Int64("node_id", Params.QueryNodeCfg.QueryNodeID), zap.String("req", req.Request), zap.Error(err)) return &milvuspb.GetMetricsResponse{ Status: &commonpb.Status{ ErrorCode: commonpb.ErrorCode_UnexpectedError, Reason: err.Error(), }, Response: "", }, nil } if metricType == metricsinfo.SystemInfoMetrics { metrics, err := getSystemInfoMetrics(ctx, req, node) if err != nil { log.Warn("QueryNode.GetMetrics failed", zap.Int64("node_id", Params.QueryNodeCfg.QueryNodeID), zap.String("req", req.Request), zap.String("metric_type", metricType), zap.Error(err)) } return metrics, nil } log.Debug("QueryNode.GetMetrics failed, request metric type is not implemented yet", zap.Int64("node_id", Params.QueryNodeCfg.QueryNodeID), zap.String("req", req.Request), zap.String("metric_type", metricType)) return &milvuspb.GetMetricsResponse{ Status: &commonpb.Status{ ErrorCode: commonpb.ErrorCode_UnexpectedError, Reason: metricsinfo.MsgUnimplementedMetric, }, Response: "", }, nil }