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8ca120b841
issue: #45452 pr: #45506 - alias/rename related DDL should use database level exclusive lock - alias cannot use as the resource key of lock, use collection name instead - transfer replica should use WAL-based framework Signed-off-by: chyezh <chyezh@outlook.com>
92 lines
3.3 KiB
Go
92 lines
3.3 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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"github.com/cockroachdb/errors"
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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/pkg/v2/log"
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"github.com/milvus-io/milvus/pkg/v2/streaming/util/message"
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"github.com/milvus-io/milvus/pkg/v2/util/merr"
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"github.com/milvus-io/milvus/pkg/v2/util/typeutil"
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)
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type dropCollectionTask struct {
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*Core
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Req *milvuspb.DropCollectionRequest
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header *message.DropCollectionMessageHeader
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body *message.DropCollectionRequest
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vchannels []string
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}
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func (t *dropCollectionTask) validate(ctx context.Context) error {
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// Critical promise here, also see comment of startBroadcastWithCollectionLock.
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if t.meta.IsAlias(ctx, t.Req.GetDbName(), t.Req.GetCollectionName()) {
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return fmt.Errorf("cannot drop the collection via alias = %s", t.Req.CollectionName)
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}
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// use max ts to check if latest collection exists.
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// we cannot handle case that
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// dropping collection with `ts1` but a collection exists in catalog with newer ts which is bigger than `ts1`.
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// fortunately, if ddls are promised to execute in sequence, then everything is OK. The `ts1` will always be latest.
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collMeta, err := t.meta.GetCollectionByName(ctx, t.Req.GetDbName(), t.Req.GetCollectionName(), typeutil.MaxTimestamp)
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if err != nil {
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if errors.Is(err, merr.ErrCollectionNotFound) || errors.Is(err, merr.ErrDatabaseNotFound) {
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return errIgnoredDropCollection
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}
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return err
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}
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// meta cache of all aliases should also be cleaned.
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aliases := t.meta.ListAliasesByID(ctx, collMeta.CollectionID)
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// Check if all aliases have been dropped.
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if len(aliases) > 0 {
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err = fmt.Errorf("unable to drop the collection [%s] because it has associated aliases %v, please remove all aliases before dropping the collection", t.Req.GetCollectionName(), aliases)
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log.Ctx(ctx).Warn("drop collection failed", zap.String("database", t.Req.GetDbName()), zap.Error(err))
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return err
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}
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// fill the message body and header
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// TODO: cleanupMetricsStep
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t.header = &message.DropCollectionMessageHeader{
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CollectionId: collMeta.CollectionID,
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DbId: collMeta.DBID,
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}
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t.body = &message.DropCollectionRequest{
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Base: &commonpb.MsgBase{
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MsgType: commonpb.MsgType_DropCollection,
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},
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CollectionID: collMeta.CollectionID,
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DbID: collMeta.DBID,
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CollectionName: t.Req.CollectionName,
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DbName: collMeta.DBName,
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}
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t.vchannels = collMeta.VirtualChannelNames
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return nil
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}
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func (t *dropCollectionTask) Prepare(ctx context.Context) error {
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return t.validate(ctx)
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}
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