milvus/internal/querynode/historical.go
sunby 7f2d7c1da3
Rename dataservice to datacoordinator (#5912)
Signed-off-by: sunby <bingyi.sun@zilliz.com>
2021-06-21 18:22:13 +08:00

152 lines
4.0 KiB
Go

// Copyright (C) 2019-2020 Zilliz. All rights reserved.
//
// Licensed 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"
"errors"
"fmt"
etcdkv "github.com/milvus-io/milvus/internal/kv/etcd"
"go.uber.org/zap"
"github.com/milvus-io/milvus/internal/log"
"github.com/milvus-io/milvus/internal/msgstream"
"github.com/milvus-io/milvus/internal/types"
)
type historical struct {
replica ReplicaInterface
loader *segmentLoader
statsService *statsService
//TODO
globalSealedSegments []UniqueID
}
func newHistorical(ctx context.Context,
rootCoord types.RootCoord,
dataCoord types.DataCoord,
indexCoord types.IndexCoord,
factory msgstream.Factory,
etcdKV *etcdkv.EtcdKV) *historical {
replica := newCollectionReplica(etcdKV)
loader := newSegmentLoader(ctx, rootCoord, indexCoord, dataCoord, replica, etcdKV)
ss := newStatsService(ctx, replica, loader.indexLoader.fieldStatsChan, factory)
return &historical{
replica: replica,
loader: loader,
statsService: ss,
}
}
func (h *historical) start() {
h.statsService.start()
}
func (h *historical) close() {
h.statsService.close()
// free collectionReplica
h.replica.freeAll()
}
func (h *historical) search(searchReqs []*searchRequest,
collID UniqueID,
partIDs []UniqueID,
plan *Plan,
searchTs Timestamp) ([]*SearchResult, []*Segment, error) {
searchResults := make([]*SearchResult, 0)
segmentResults := make([]*Segment, 0)
// get historical partition ids
var searchPartIDs []UniqueID
if len(partIDs) == 0 {
hisPartIDs, err := h.replica.getPartitionIDs(collID)
if len(hisPartIDs) == 0 {
// no partitions in collection, do empty search
return nil, nil, nil
}
if err != nil {
return searchResults, segmentResults, err
}
log.Debug("no partition specified, search all partitions",
zap.Any("collectionID", collID),
zap.Any("all partitions", hisPartIDs),
)
searchPartIDs = hisPartIDs
} else {
for _, id := range partIDs {
_, err := h.replica.getPartitionByID(id)
if err == nil {
log.Debug("append search partition id",
zap.Any("collectionID", collID),
zap.Any("partitionID", id),
)
searchPartIDs = append(searchPartIDs, id)
}
}
}
col, err := h.replica.getCollectionByID(collID)
if err != nil {
return nil, nil, err
}
// all partitions have been released
if len(searchPartIDs) == 0 && col.getLoadType() == loadTypePartition {
return nil, nil, errors.New("partitions have been released , collectionID = " +
fmt.Sprintln(collID) +
"target partitionIDs = " +
fmt.Sprintln(partIDs))
}
if len(searchPartIDs) == 0 && col.getLoadType() == loadTypeCollection {
if err = col.checkReleasedPartitions(partIDs); err != nil {
return nil, nil, err
}
return nil, nil, nil
}
log.Debug("doing search in historical",
zap.Any("collectionID", collID),
zap.Any("reqPartitionIDs", partIDs),
zap.Any("searchPartitionIDs", searchPartIDs),
)
for _, partID := range searchPartIDs {
segIDs, err := h.replica.getSegmentIDs(partID)
if err != nil {
return searchResults, segmentResults, err
}
for _, segID := range segIDs {
seg, err := h.replica.getSegmentByID(segID)
if err != nil {
return searchResults, segmentResults, err
}
if !seg.getOnService() {
continue
}
searchResult, err := seg.segmentSearch(plan, searchReqs, []Timestamp{searchTs})
if err != nil {
return searchResults, segmentResults, err
}
searchResults = append(searchResults, searchResult)
segmentResults = append(segmentResults, seg)
}
}
return searchResults, segmentResults, nil
}