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https://gitee.com/milvus-io/milvus.git
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134 lines
3.6 KiB
Go
134 lines
3.6 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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"go.uber.org/zap"
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"github.com/milvus-io/milvus/internal/log"
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"github.com/milvus-io/milvus/internal/proto/etcdpb"
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"github.com/milvus-io/milvus/internal/storage"
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"github.com/milvus-io/milvus/internal/util/funcutil"
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)
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type queryShard struct {
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ctx context.Context
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cancel context.CancelFunc
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collectionID UniqueID
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collection *Collection // quick reference from meta
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channel Channel
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deltaChannel Channel
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replicaID int64
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clusterService *ShardClusterService
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tSafeReplica TSafeReplicaInterface
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metaReplica ReplicaInterface
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vectorChunkManager *storage.VectorChunkManager
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localCacheEnabled bool
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localCacheSize int64
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}
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func newQueryShard(
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ctx context.Context,
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collectionID UniqueID,
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channel Channel,
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replicaID int64,
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clusterService *ShardClusterService,
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metaReplica ReplicaInterface,
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tSafeReplica TSafeReplicaInterface,
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localChunkManager storage.ChunkManager,
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remoteChunkManager storage.ChunkManager,
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localCacheEnabled bool,
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) (*queryShard, error) {
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collection, err := metaReplica.getCollectionByID(collectionID)
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if err != nil {
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return nil, err
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}
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if localChunkManager == nil {
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return nil, fmt.Errorf("can not create vector chunk manager for local chunk manager is nil")
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}
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if remoteChunkManager == nil {
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return nil, fmt.Errorf("can not create vector chunk manager for remote chunk manager is nil")
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}
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vectorChunkManager, err := storage.NewVectorChunkManager(localChunkManager, remoteChunkManager,
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&etcdpb.CollectionMeta{
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ID: collectionID,
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Schema: collection.schema,
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}, Params.QueryNodeCfg.CacheMemoryLimit, localCacheEnabled)
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if err != nil {
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return nil, err
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}
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ctx, cancel := context.WithCancel(ctx)
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qs := &queryShard{
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ctx: ctx,
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cancel: cancel,
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collectionID: collectionID,
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collection: collection,
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channel: channel,
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replicaID: replicaID,
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clusterService: clusterService,
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metaReplica: metaReplica,
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vectorChunkManager: vectorChunkManager,
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tSafeReplica: tSafeReplica,
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}
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deltaChannel, err := funcutil.ConvertChannelName(channel, Params.CommonCfg.RootCoordDml, Params.CommonCfg.RootCoordDelta)
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if err != nil {
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log.Warn("failed to convert dm channel to delta", zap.String("channel", channel), zap.Error(err))
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}
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qs.deltaChannel = deltaChannel
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return qs, nil
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}
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// Close cleans query shard
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func (q *queryShard) Close() {
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q.cancel()
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}
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type tsType int32
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const (
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tsTypeDML tsType = 1
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tsTypeDelta tsType = 2
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)
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func (tp tsType) String() string {
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switch tp {
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case tsTypeDML:
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return "DML tSafe"
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case tsTypeDelta:
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return "Delta tSafe"
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}
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return ""
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}
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func (q *queryShard) getServiceableTime(channel Channel) (Timestamp, error) {
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ts, err := q.tSafeReplica.getTSafe(channel)
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if err != nil {
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return 0, err
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}
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return ts, nil
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}
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