milvus/internal/dataservice/datanode_helper.go
congqixia 607a8ffa1f Update WatchDmChannels signature (#5447)
Signed-off-by: Congqi Xia <congqi.xia@zilliz.com>
2021-06-15 15:59:04 +08:00

89 lines
2.6 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 dataservice
import (
"github.com/milvus-io/milvus/internal/log"
"github.com/milvus-io/milvus/internal/proto/datapb"
"go.uber.org/zap"
)
type vchannel struct {
CollectionID UniqueID
DmlChannel string
DdlChannel string
}
// positionProvider provides vchannel pair related position pairs
type positionProvider interface {
GetVChanPositions(vchans []vchannel) ([]*datapb.VchannelPair, error)
GetDdlChannel() string
}
type dummyPosProvider struct{}
//GetVChanPositions implements positionProvider
func (dp dummyPosProvider) GetVChanPositions(vchans []vchannel) ([]*datapb.VchannelPair, error) {
pairs := make([]*datapb.VchannelPair, len(vchans))
for _, vchan := range vchans {
dmlPos := &datapb.PositionPair{}
ddlPos := &datapb.PositionPair{}
pairs = append(pairs, &datapb.VchannelPair{
CollectionID: vchan.CollectionID,
DmlVchannelName: vchan.DmlChannel,
DdlVchannelName: vchan.DmlChannel,
DdlPosition: ddlPos,
DmlPosition: dmlPos,
})
}
return pairs, nil
}
//GetDdlChannel implements positionProvider
func (dp dummyPosProvider) GetDdlChannel() string {
return "dummy_ddl"
}
//GetDdlChannel implements positionProvider
func (s *Server) GetDdlChannel() string {
s.getDDChannel()
return s.ddChannelMu.name
}
// getAllActiveVChannels get all vchannels with unflushed segments
func (s *Server) getAllActiveVChannels() []vchannel {
s.getDDChannel()
segments := s.meta.GetUnFlushedSegments()
mChanCol := make(map[string]UniqueID)
for _, segment := range segments {
ocid, has := mChanCol[segment.InsertChannel]
if has && ocid != segment.CollectionID {
log.Error("col:vchan not 1:N",
zap.Int64("colid 1", ocid),
zap.Int64("colid 2", segment.CollectionID),
zap.String("channel", segment.InsertChannel))
}
mChanCol[segment.InsertChannel] = segment.CollectionID
}
vchans := make([]vchannel, 0, len(mChanCol))
for dmChan, colID := range mChanCol {
vchans = append(vchans, vchannel{
CollectionID: colID,
DmlChannel: dmChan,
DdlChannel: s.ddChannelMu.name,
})
}
return vchans
}