mirror of
https://gitee.com/milvus-io/milvus.git
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123 lines
4.3 KiB
Go
123 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 rootcoord
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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-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/internal/metastore/model"
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pb "github.com/milvus-io/milvus/internal/proto/etcdpb"
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"github.com/milvus-io/milvus/internal/util/proxyutil"
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"github.com/milvus-io/milvus/pkg/common"
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"github.com/milvus-io/milvus/pkg/log"
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)
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type dropPartitionTask struct {
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baseTask
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Req *milvuspb.DropPartitionRequest
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collMeta *model.Collection
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}
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func (t *dropPartitionTask) Prepare(ctx context.Context) error {
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if err := CheckMsgType(t.Req.GetBase().GetMsgType(), commonpb.MsgType_DropPartition); err != nil {
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return err
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}
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if t.Req.GetPartitionName() == Params.CommonCfg.DefaultPartitionName.GetValue() {
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return fmt.Errorf("default partition cannot be deleted")
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}
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collMeta, err := t.core.meta.GetCollectionByName(ctx, t.Req.GetDbName(), t.Req.GetCollectionName(), t.GetTs())
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if err != nil {
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// Is this idempotent?
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return err
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}
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t.collMeta = collMeta
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return nil
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}
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func (t *dropPartitionTask) Execute(ctx context.Context) error {
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partID := common.InvalidPartitionID
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for _, partition := range t.collMeta.Partitions {
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if partition.PartitionName == t.Req.GetPartitionName() {
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partID = partition.PartitionID
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break
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}
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}
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if partID == common.InvalidPartitionID {
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log.Warn("drop an non-existent partition", zap.String("collection", t.Req.GetCollectionName()), zap.String("partition", t.Req.GetPartitionName()))
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// make dropping partition idempotent.
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return nil
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}
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redoTask := newBaseRedoTask(t.core.stepExecutor)
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redoTask.AddSyncStep(&expireCacheStep{
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baseStep: baseStep{core: t.core},
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dbName: t.Req.GetDbName(),
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collectionNames: []string{t.collMeta.Name},
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collectionID: t.collMeta.CollectionID,
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partitionName: t.Req.GetPartitionName(),
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ts: t.GetTs(),
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opts: []proxyutil.ExpireCacheOpt{proxyutil.SetMsgType(commonpb.MsgType_DropPartition)},
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})
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redoTask.AddSyncStep(&changePartitionStateStep{
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baseStep: baseStep{core: t.core},
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collectionID: t.collMeta.CollectionID,
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partitionID: partID,
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state: pb.PartitionState_PartitionDropping,
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ts: t.GetTs(),
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})
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redoTask.AddAsyncStep(&deletePartitionDataStep{
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baseStep: baseStep{core: t.core},
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pchans: t.collMeta.PhysicalChannelNames,
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vchans: t.collMeta.VirtualChannelNames,
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partition: &model.Partition{
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PartitionID: partID,
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PartitionName: t.Req.GetPartitionName(),
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CollectionID: t.collMeta.CollectionID,
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},
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isSkip: t.Req.GetBase().GetReplicateInfo().GetIsReplicate(),
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})
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redoTask.AddAsyncStep(newConfirmGCStep(t.core, t.collMeta.CollectionID, partID))
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redoTask.AddAsyncStep(&removePartitionMetaStep{
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baseStep: baseStep{core: t.core},
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dbID: t.collMeta.DBID,
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collectionID: t.collMeta.CollectionID,
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partitionID: partID,
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// This ts is less than the ts when we notify data nodes to drop partition, but it's OK since we have already
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// marked this partition as deleted. If we want to make this ts greater than the notification's ts, we should
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// wrap a step who will have these children and connect them with ts.
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ts: t.GetTs(),
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})
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return redoTask.Execute(ctx)
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}
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func (t *dropPartitionTask) GetLockerKey() LockerKey {
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collection := t.core.getCollectionIDStr(t.ctx, t.Req.GetDbName(), t.Req.GetCollectionName(), 0)
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return NewLockerKeyChain(
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NewClusterLockerKey(false),
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NewDatabaseLockerKey(t.Req.GetDbName(), false),
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NewCollectionLockerKey(collection, true),
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)
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}
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