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comparison of confluent-kafka-go vs sarama-cluster consumer performance
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package main | |
import ( | |
"crypto/tls" | |
"crypto/x509" | |
"flag" | |
"fmt" | |
"io/ioutil" | |
"log" | |
"os" | |
"os/signal" | |
"strings" | |
"time" | |
"github.com/Shopify/sarama" | |
"github.com/bsm/sarama-cluster" | |
"github.com/confluentinc/confluent-kafka-go/kafka" | |
"github.com/segmentio/ksuid" | |
) | |
var ( | |
brokers string | |
topic string | |
records int | |
certFile string | |
caFile string | |
keyFile string | |
) | |
func init() { | |
flag.StringVar(&brokers, "brokers", "localhost:9092", "broker addresses, comma-separated") | |
flag.StringVar(&topic, "topic", "topic", "topic to produce to") | |
flag.IntVar(&records, "records", 250000, "number of records to read from kafka") | |
flag.StringVar(&certFile, "cert", "_cert.pem", "tls cert") | |
flag.StringVar(&caFile, "ca", "_ca.pem", "tls ca") | |
flag.StringVar(&keyFile, "key", "_key.pem", "tls key") | |
flag.Parse() | |
} | |
func check(err error) { | |
if err != nil { | |
log.Fatalln(err) | |
} | |
} | |
func main() { | |
confluent() | |
saramago() | |
} | |
func confluent() { | |
groupID := ksuid.New().String() | |
cm := &kafka.ConfigMap{ | |
"session.timeout.ms": 6000, | |
"metadata.broker.list": brokers, | |
"enable.auto.commit": false, | |
"go.events.channel.enable": true, | |
"go.application.rebalance.enable": true, | |
"group.id": groupID, | |
"default.topic.config": kafka.ConfigMap{ | |
"auto.offset.reset": "earliest", | |
}, | |
"security.protocol": "ssl", | |
"ssl.ca.location": caFile, | |
"ssl.certificate.location": certFile, | |
"ssl.key.location": keyFile, | |
} | |
consumer, err := kafka.NewConsumer(cm) | |
check(err) | |
defer consumer.Close() | |
check(consumer.Subscribe(topic, nil)) | |
var start time.Time | |
count := 0 | |
loop: | |
for { | |
select { | |
case m, ok := <-consumer.Events(): | |
if !ok { | |
panic("unexpected eof") | |
} | |
switch event := m.(type) { | |
case kafka.AssignedPartitions: | |
consumer.Assign(event.Partitions) | |
case kafka.PartitionEOF: | |
// nop | |
case kafka.RevokedPartitions: | |
consumer.Unassign() | |
case *kafka.Message: | |
count++ | |
if count == 1 { | |
start = time.Now() | |
} | |
if count == records { | |
break loop | |
} | |
default: | |
panic(m) | |
} | |
} | |
} | |
elapsed := time.Now().Sub(start) | |
fmt.Printf("confluent: %v records, %v\n", count, elapsed) | |
} | |
func tlsConfig() *tls.Config { | |
certPEM, err := ioutil.ReadFile(certFile) | |
check(err) | |
caPEM, err := ioutil.ReadFile(caFile) | |
check(err) | |
keyPEM, err := ioutil.ReadFile(keyFile) | |
check(err) | |
if certPEM == nil || caPEM == nil || keyPEM == nil { | |
panic("tls configuration not available") | |
} | |
cert, err := tls.X509KeyPair([]byte(certPEM), []byte(keyPEM)) | |
check(err) | |
caCertPool := x509.NewCertPool() | |
caCertPool.AppendCertsFromPEM([]byte(caPEM)) | |
return &tls.Config{ | |
Certificates: []tls.Certificate{cert}, | |
RootCAs: caCertPool, | |
InsecureSkipVerify: true, | |
} | |
} | |
func saramago() { | |
// Code from the sarama-cluster same page with minimal changes for TLS and broker/topic | |
// | |
// init (custom) config, enable errors and notifications | |
config := cluster.NewConfig() | |
config.Consumer.Offsets.Initial = sarama.OffsetOldest | |
config.Consumer.Return.Errors = true | |
config.Group.Return.Notifications = true | |
config.Net.TLS.Enable = true | |
config.Net.TLS.Config = tlsConfig() | |
// init consumer | |
groupID := ksuid.New().String() | |
consumer, err := cluster.NewConsumer(strings.Split(brokers, ","), groupID, []string{topic}, config) | |
if err != nil { | |
panic(err) | |
} | |
defer consumer.Close() | |
// trap SIGINT to trigger a shutdown. | |
signals := make(chan os.Signal, 1) | |
signal.Notify(signals, os.Interrupt) | |
// consume errors | |
go func() { | |
for err := range consumer.Errors() { | |
log.Printf("Error: %s\n", err.Error()) | |
} | |
}() | |
// consume notifications | |
go func() { | |
for n := range consumer.Notifications() { | |
log.Printf("Notification: %v\n", n) | |
} | |
}() | |
var start time.Time | |
var count int | |
// consume messages, watch signals | |
loop: | |
for { | |
select { | |
case _, ok := <-consumer.Messages(): | |
if !ok { | |
panic("messages channel unexpectedly closed") | |
} | |
count++ | |
if count == 1 { | |
start = time.Now() | |
} | |
if count == records { | |
break loop | |
} | |
case <-signals: | |
return | |
} | |
} | |
elapsed := time.Now().Sub(start) | |
fmt.Printf("sarama-cluster: %v records, %v\n", count, elapsed) | |
} |
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kafka cluster 2.5.0
after enable auto commit: