forked from apache/beam
-
Notifications
You must be signed in to change notification settings - Fork 0
/
group_by_key.go
89 lines (78 loc) · 2.51 KB
/
group_by_key.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
// Licensed to the Apache Software Foundation (ASF) 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.
// This is GroupByKey load test with Synthetic Source.
package main
import (
"context"
"flag"
"github.com/apache/beam/sdks/go/pkg/beam"
"github.com/apache/beam/sdks/go/pkg/beam/io/synthetic"
"github.com/apache/beam/sdks/go/pkg/beam/log"
"github.com/apache/beam/sdks/go/pkg/beam/x/beamx"
"github.com/apache/beam/sdks/go/test/load"
)
var (
fanout = flag.Int(
"fanout",
1,
"A number of GroupByKey operations to perform in parallel.")
iterations = flag.Int(
"iterations",
1,
"A number of reiterations over per-key-grouped values to perform.")
syntheticConfig = flag.String(
"input_options",
"",
"A JSON object that describes the configuration for synthetic source.")
)
func parseSyntheticConfig() synthetic.SourceConfig {
if *syntheticConfig == "" {
panic("--input_options not provided")
} else {
encoded := []byte(*syntheticConfig)
return synthetic.DefaultSourceConfig().BuildFromJSON(encoded)
}
}
func main() {
flag.Parse()
beam.Init()
ctx := context.Background()
p, s := beam.NewPipelineWithRoot()
src := synthetic.SourceSingle(s, parseSyntheticConfig())
src = beam.ParDo(s, &load.RuntimeMonitor{}, src)
for i := 0; i < *fanout; i++ {
pcoll := beam.GroupByKey(s, src)
pcoll = beam.ParDo(s, func(key []byte, values func(*[]byte) bool) ([]byte, []byte) {
for i := 0; i < *iterations; i++ {
var value []byte
for values(&value) {
if i == *iterations-1 {
return key, value
}
}
}
return key, []byte{0}
}, pcoll)
pcoll = beam.ParDo(s, &load.RuntimeMonitor{}, pcoll)
}
presult, err := beamx.RunWithMetrics(ctx, p)
if err != nil {
log.Fatalf(ctx, "Failed to execute job: %v", err)
}
if presult != nil {
metrics := presult.Metrics().AllMetrics()
load.PublishMetrics(metrics)
}
}