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104 lines
4.3 KiB
Go
104 lines
4.3 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 querynode
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import (
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"context"
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"fmt"
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"sync"
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"github.com/milvus-io/milvus/api/commonpb"
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"github.com/milvus-io/milvus/internal/log"
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"github.com/milvus-io/milvus/internal/metrics"
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"github.com/milvus-io/milvus/internal/util/timerecord"
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)
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// searchOnSegments performs search on listed segments
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// all segment ids are validated before calling this function
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func searchOnSegments(ctx context.Context, replica ReplicaInterface, segType segmentType, searchReq *searchRequest, segIDs []UniqueID) ([]*SearchResult, error) {
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// results variables
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searchResults := make([]*SearchResult, len(segIDs))
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errs := make([]error, len(segIDs))
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searchLabel := metrics.SealedSegmentLabel
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if segType == commonpb.SegmentState_Growing {
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searchLabel = metrics.GrowingSegmentLabel
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}
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// calling segment search in goroutines
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var wg sync.WaitGroup
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for i, segID := range segIDs {
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wg.Add(1)
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go func(segID UniqueID, i int) {
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defer wg.Done()
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seg, err := replica.getSegmentByID(segID, segType)
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if err != nil {
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log.Error(err.Error()) // should not happen but still ignore it since the result is still correct
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return
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}
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// record search time
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tr := timerecord.NewTimeRecorder("searchOnSegments")
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searchResult, err := seg.search(searchReq)
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errs[i] = err
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searchResults[i] = searchResult
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// update metrics
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metrics.QueryNodeSQSegmentLatency.WithLabelValues(fmt.Sprint(Params.QueryNodeCfg.GetNodeID()),
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metrics.SearchLabel, searchLabel).Observe(float64(tr.ElapseSpan().Milliseconds()))
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}(segID, i)
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}
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wg.Wait()
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for _, err := range errs {
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if err != nil {
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deleteSearchResults(searchResults)
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return nil, err
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}
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}
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return searchResults, nil
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}
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// search will search on the historical segments the target segments in historical.
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// if segIDs is not specified, it will search on all the historical segments speficied by partIDs.
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// if segIDs is specified, it will only search on the segments specified by the segIDs.
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// if partIDs is empty, it means all the partitions of the loaded collection or all the partitions loaded.
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func searchHistorical(ctx context.Context, replica ReplicaInterface, searchReq *searchRequest, collID UniqueID, partIDs []UniqueID, segIDs []UniqueID) ([]*SearchResult, []UniqueID, []UniqueID, error) {
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var err error
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var searchResults []*SearchResult
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var searchSegmentIDs []UniqueID
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var searchPartIDs []UniqueID
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searchPartIDs, searchSegmentIDs, err = validateOnHistoricalReplica(ctx, replica, collID, partIDs, segIDs)
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if err != nil {
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return searchResults, searchSegmentIDs, searchPartIDs, err
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}
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searchResults, err = searchOnSegments(ctx, replica, segmentTypeSealed, searchReq, searchSegmentIDs)
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return searchResults, searchPartIDs, searchSegmentIDs, err
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}
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// searchStreaming will search all the target segments in streaming
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// if partIDs is empty, it means all the partitions of the loaded collection or all the partitions loaded.
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func searchStreaming(ctx context.Context, replica ReplicaInterface, searchReq *searchRequest, collID UniqueID, partIDs []UniqueID, vChannel Channel) ([]*SearchResult, []UniqueID, []UniqueID, error) {
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var err error
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var searchResults []*SearchResult
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var searchPartIDs []UniqueID
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var searchSegmentIDs []UniqueID
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searchPartIDs, searchSegmentIDs, err = validateOnStreamReplica(ctx, replica, collID, partIDs, vChannel)
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if err != nil {
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return searchResults, searchSegmentIDs, searchPartIDs, err
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}
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searchResults, err = searchOnSegments(ctx, replica, segmentTypeGrowing, searchReq, searchSegmentIDs)
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return searchResults, searchPartIDs, searchSegmentIDs, err
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}
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