milvus/internal/querycoordv2/job/undo.go

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// Licensed to the LF AI & Data foundation under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you 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 job
import (
"context"
"go.uber.org/zap"
"github.com/milvus-io/milvus/internal/querycoordv2/meta"
"github.com/milvus-io/milvus/internal/querycoordv2/observers"
"github.com/milvus-io/milvus/internal/querycoordv2/session"
"github.com/milvus-io/milvus/pkg/log"
)
type UndoList struct {
IsTargetUpdated bool // indicates if target updated during loading
IsReplicaCreated bool // indicates if created new replicas during loading
IsNewCollection bool // indicates if created new collection during loading
CollectionID int64
LackPartitions []int64
ctx context.Context
meta *meta.Meta
cluster session.Cluster
targetMgr meta.TargetManagerInterface
targetObserver *observers.TargetObserver
}
func NewUndoList(ctx context.Context, meta *meta.Meta,
cluster session.Cluster, targetMgr meta.TargetManagerInterface, targetObserver *observers.TargetObserver,
) *UndoList {
return &UndoList{
ctx: ctx,
meta: meta,
cluster: cluster,
targetMgr: targetMgr,
targetObserver: targetObserver,
}
}
func (u *UndoList) RollBack() {
log := log.Ctx(u.ctx).With(
zap.Int64("collectionID", u.CollectionID),
zap.Int64s("partitionIDs", u.LackPartitions),
)
log.Warn("rollback failed loading request...",
zap.Bool("isNewCollection", u.IsNewCollection),
zap.Bool("isReplicaCreated", u.IsReplicaCreated),
zap.Bool("isTargetUpdated", u.IsTargetUpdated),
)
var err error
if u.IsNewCollection || u.IsReplicaCreated {
err = u.meta.CollectionManager.RemoveCollection(u.CollectionID)
} else {
err = u.meta.CollectionManager.RemovePartition(u.CollectionID, u.LackPartitions...)
}
if err != nil {
log.Warn("failed to rollback collection from meta", zap.Error(err))
}
if u.IsTargetUpdated {
if u.IsNewCollection {
u.targetMgr.RemoveCollection(u.CollectionID)
u.targetObserver.ReleaseCollection(u.CollectionID)
} else {
u.targetMgr.RemovePartition(u.CollectionID, u.LackPartitions...)
}
}
}