milvus/internal/querynode/flow_graph_service_time_node.go

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// 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 querynode
import (
"context"
"go.uber.org/zap"
"github.com/milvus-io/milvus/internal/log"
"github.com/milvus-io/milvus/internal/msgstream"
"github.com/milvus-io/milvus/internal/util/flowgraph"
)
type serviceTimeNode struct {
baseNode
loadType loadType
collectionID UniqueID
partitionID UniqueID
vChannel Channel
tSafeReplica TSafeReplicaInterface
timeTickMsgStream msgstream.MsgStream
}
func (stNode *serviceTimeNode) Name() string {
return "stNode"
}
func (stNode *serviceTimeNode) Close() {
//stNode.timeTickMsgStream.Close()
}
func (stNode *serviceTimeNode) Operate(in []flowgraph.Msg) []flowgraph.Msg {
//log.Debug("Do serviceTimeNode operation")
if len(in) != 1 {
log.Error("Invalid operate message input in serviceTimeNode, input length = ", zap.Int("input node", len(in)))
// TODO: add error handling
}
serviceTimeMsg, ok := in[0].(*serviceTimeMsg)
if !ok {
log.Error("type assertion failed for serviceTimeMsg")
// TODO: add error handling
}
if serviceTimeMsg == nil {
return []Msg{}
}
// update service time
var id UniqueID
if stNode.loadType == loadTypePartition {
id = stNode.partitionID
} else {
id = stNode.collectionID
}
stNode.tSafeReplica.setTSafe(stNode.vChannel, id, serviceTimeMsg.timeRange.timestampMax)
//log.Debug("update tSafe:",
// zap.Int64("tSafe", int64(serviceTimeMsg.timeRange.timestampMax)),
// zap.Any("collectionID", stNode.collectionID),
// zap.Any("id", id),
// zap.Any("channel", stNode.vChannel),
//)
//if err := stNode.sendTimeTick(serviceTimeMsg.timeRange.timestampMax); err != nil {
// log.Error("Error: send time tick into pulsar channel failed", zap.Error(err))
//}
var res Msg = &gcMsg{
gcRecord: serviceTimeMsg.gcRecord,
timeRange: serviceTimeMsg.timeRange,
}
return []Msg{res}
}
//func (stNode *serviceTimeNode) sendTimeTick(ts Timestamp) error {
// msgPack := msgstream.MsgPack{}
// timeTickMsg := msgstream.TimeTickMsg{
// BaseMsg: msgstream.BaseMsg{
// BeginTimestamp: ts,
// EndTimestamp: ts,
// HashValues: []uint32{0},
// },
// TimeTickMsg: internalpb.TimeTickMsg{
// Base: &commonpb.MsgBase{
// MsgType: commonpb.MsgType_TimeTick,
// MsgID: 0,
// Timestamp: ts,
// SourceID: Params.QueryNodeID,
// },
// },
// }
// msgPack.Msgs = append(msgPack.Msgs, &timeTickMsg)
// return stNode.timeTickMsgStream.Produce(&msgPack)
//}
func newServiceTimeNode(ctx context.Context,
tSafeReplica TSafeReplicaInterface,
loadType loadType,
collectionID UniqueID,
partitionID UniqueID,
channel Channel,
factory msgstream.Factory) *serviceTimeNode {
maxQueueLength := Params.FlowGraphMaxQueueLength
maxParallelism := Params.FlowGraphMaxParallelism
baseNode := baseNode{}
baseNode.SetMaxQueueLength(maxQueueLength)
baseNode.SetMaxParallelism(maxParallelism)
timeTimeMsgStream, err := factory.NewMsgStream(ctx)
if err != nil {
log.Error(err.Error())
} else {
// TODO: use param table
timeTickChannel := "query-node-time-tick-0"
timeTimeMsgStream.AsProducer([]string{timeTickChannel})
log.Debug("query node AsProducer: " + timeTickChannel)
}
return &serviceTimeNode{
baseNode: baseNode,
loadType: loadType,
collectionID: collectionID,
partitionID: partitionID,
vChannel: channel,
tSafeReplica: tSafeReplica,
timeTickMsgStream: timeTimeMsgStream,
}
}