-
Notifications
You must be signed in to change notification settings - Fork 2.7k
/
input_node.go
201 lines (179 loc) · 5.87 KB
/
input_node.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
// 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 flowgraph
import (
"context"
"fmt"
"time"
"go.opentelemetry.io/otel"
"go.opentelemetry.io/otel/trace"
"go.uber.org/atomic"
"go.uber.org/zap"
"github.com/milvus-io/milvus-proto/go-api/v2/commonpb"
"github.com/milvus-io/milvus/pkg/log"
"github.com/milvus-io/milvus/pkg/metrics"
"github.com/milvus-io/milvus/pkg/mq/msgstream"
"github.com/milvus-io/milvus/pkg/util/paramtable"
"github.com/milvus-io/milvus/pkg/util/tsoutil"
"github.com/milvus-io/milvus/pkg/util/typeutil"
)
const (
CloseGracefully bool = true
CloseImmediately bool = false
)
// InputNode is the entry point of flowgragh
type InputNode struct {
BaseNode
input <-chan *msgstream.MsgPack
lastMsg *msgstream.MsgPack
name string
role string
nodeID int64
collectionID int64
dataType string
closeGracefully *atomic.Bool
skipMode bool
skipCount int
lastNotTimetickTime time.Time
}
// IsInputNode returns whether Node is InputNode
func (inNode *InputNode) IsInputNode() bool {
return true
}
func (inNode *InputNode) IsValidInMsg(in []Msg) bool {
return true
}
// Name returns node name
func (inNode *InputNode) Name() string {
return inNode.name
}
func (inNode *InputNode) SetCloseMethod(gracefully bool) {
inNode.closeGracefully.Store(gracefully)
log.Info("input node close method set",
zap.String("node", inNode.Name()),
zap.Int64("collection", inNode.collectionID),
zap.Bool("gracefully", gracefully))
}
// Operate consume a message pack from msgstream and return
func (inNode *InputNode) Operate(in []Msg) []Msg {
msgPack, ok := <-inNode.input
if !ok {
log := log.With(
zap.String("node", inNode.Name()),
zap.Int64("collection", inNode.collectionID),
)
log.Info("input node message stream closed",
zap.Bool("closeGracefully", inNode.closeGracefully.Load()),
)
if inNode.lastMsg != nil && inNode.closeGracefully.Load() {
log.Info("input node trigger force sync",
zap.Any("position", inNode.lastMsg.EndPositions))
return []Msg{&MsgStreamMsg{
BaseMsg: NewBaseMsg(true),
tsMessages: []msgstream.TsMsg{},
timestampMin: inNode.lastMsg.BeginTs,
timestampMax: inNode.lastMsg.EndTs,
startPositions: inNode.lastMsg.StartPositions,
endPositions: inNode.lastMsg.EndPositions,
}}
}
return []Msg{&MsgStreamMsg{
BaseMsg: NewBaseMsg(true),
}}
}
// TODO: add status
if msgPack == nil {
return []Msg{}
}
inNode.lastMsg = msgPack
sub := tsoutil.SubByNow(msgPack.EndTs)
if inNode.role == typeutil.DataNodeRole {
metrics.DataNodeConsumeMsgCount.
WithLabelValues(fmt.Sprint(inNode.nodeID), inNode.dataType, fmt.Sprint(inNode.collectionID)).
Inc()
metrics.DataNodeConsumeTimeTickLag.
WithLabelValues(fmt.Sprint(inNode.nodeID), inNode.dataType, fmt.Sprint(inNode.collectionID)).
Set(float64(sub))
}
var spans []trace.Span
defer func() {
for _, span := range spans {
span.End()
}
}()
for _, msg := range msgPack.Msgs {
ctx := msg.TraceCtx()
if ctx == nil {
ctx = context.Background()
}
ctx, sp := otel.Tracer(inNode.role).Start(ctx, "Operate")
sp.AddEvent("input_node name" + inNode.Name())
spans = append(spans, sp)
msg.SetTraceCtx(ctx)
}
// skip timetick message feature
if inNode.role == typeutil.DataNodeRole &&
len(msgPack.Msgs) > 0 &&
paramtable.Get().DataNodeCfg.FlowGraphSkipModeEnable.GetAsBool() {
if msgPack.Msgs[0].Type() == commonpb.MsgType_TimeTick {
if inNode.skipMode {
// if empty timetick message and in skipMode, will skip some of the timetick messages to reduce downstream work
if inNode.skipCount == paramtable.Get().DataNodeCfg.FlowGraphSkipModeSkipNum.GetAsInt() {
inNode.skipCount = 0
} else {
inNode.skipCount = inNode.skipCount + 1
return []Msg{}
}
} else {
cd := paramtable.Get().DataNodeCfg.FlowGraphSkipModeColdTime.GetAsInt()
if time.Since(inNode.lastNotTimetickTime) > time.Second*time.Duration(cd) {
inNode.skipMode = true
}
}
} else {
// if non empty message, refresh the lastNotTimetickTime and close skip mode
inNode.skipMode = false
inNode.skipCount = 0
inNode.lastNotTimetickTime = time.Now()
}
}
var msgStreamMsg Msg = &MsgStreamMsg{
tsMessages: msgPack.Msgs,
timestampMin: msgPack.BeginTs,
timestampMax: msgPack.EndTs,
startPositions: msgPack.StartPositions,
endPositions: msgPack.EndPositions,
}
return []Msg{msgStreamMsg}
}
// NewInputNode composes an InputNode with provided input channel, name and parameters
func NewInputNode(input <-chan *msgstream.MsgPack, nodeName string, maxQueueLength int32, maxParallelism int32, role string, nodeID int64, collectionID int64, dataType string) *InputNode {
baseNode := BaseNode{}
baseNode.SetMaxQueueLength(maxQueueLength)
baseNode.SetMaxParallelism(maxParallelism)
return &InputNode{
BaseNode: baseNode,
input: input,
name: nodeName,
role: role,
nodeID: nodeID,
collectionID: collectionID,
dataType: dataType,
closeGracefully: atomic.NewBool(CloseImmediately),
skipCount: 0,
lastNotTimetickTime: time.Now(),
}
}