Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

tmp #36

Draft
wants to merge 1 commit into
base: dev
Choose a base branch
from
Draft

tmp #36

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
138 changes: 138 additions & 0 deletions datasync/chaindatafetcher/kafka/consumer.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -23,6 +23,7 @@ import (
"fmt"
"log"
"os"
"strconv"
"time"

"github.com/Shopify/sarama"
Expand Down Expand Up @@ -70,13 +71,150 @@ func (s *Segment) String() string {
return fmt.Sprintf("key: %v, total: %v, index: %v, value: %v, version: %v, producerId: %v", s.key, s.total, s.index, string(s.value), s.version, s.producerId)
}

func newSegmentLegacy(msg *sarama.ConsumerMessage) (*Segment, error) {
headerLen := len(msg.Headers)
if headerLen != LegacyMsgHeaderLength {
return nil, fmt.Errorf("%v [header length: %v]", wrongHeaderNumberErrorMsg, headerLen)
}

// check the existence of KeyTotalSegments header
keyTotalSegments := string(msg.Headers[MsgHeaderTotalSegments].Key)
if keyTotalSegments != KeyTotalSegments {
return nil, fmt.Errorf("%v [expected: %v, actual: %v]", wrongHeaderKeyErrorMsg, KeyTotalSegments, keyTotalSegments)
}

// check the existence of MsgHeaderSegmentIdx header
keySegmentIdx := string(msg.Headers[MsgHeaderSegmentIdx].Key)
if keySegmentIdx != KeySegmentIdx {
return nil, fmt.Errorf("%v [expected: %v, actual: %v]", wrongHeaderKeyErrorMsg, KeySegmentIdx, keySegmentIdx)
}

key := string(msg.Key)
totalSegments := binary.BigEndian.Uint64(msg.Headers[MsgHeaderTotalSegments].Value)
segmentIdx := binary.BigEndian.Uint64(msg.Headers[MsgHeaderSegmentIdx].Value)
return &Segment{
orig: msg,
key: key,
total: totalSegments,
index: segmentIdx,
value: msg.Value,
}, nil
}

func newSegmentV1_0(msg *sarama.ConsumerMessage) (*Segment, error) {
headerLen := len(msg.Headers)
if headerLen != MsgHeaderLength {
return nil, fmt.Errorf("%v [header length: %v]", wrongHeaderNumberErrorMsg, headerLen)
}

keyVersion := string(msg.Headers[MsgHeaderVersion].Key)
if keyVersion != KeyVersion {
return nil, fmt.Errorf("%v [expected: %v, actual: %v]", wrongHeaderKeyErrorMsg, KeyVersion, keyVersion)
}
keyProducerId := string(msg.Headers[MsgHeaderProducerId].Key)
if keyProducerId != KeyProducerId {
return nil, fmt.Errorf("%v [expected: %v, actual: %v]", wrongHeaderKeyErrorMsg, KeyProducerId, keyProducerId)
}
producerId := string(msg.Headers[MsgHeaderProducerId].Value)

// check the existence of KeyTotalSegments header
keyTotalSegments := string(msg.Headers[MsgHeaderTotalSegments].Key)
if keyTotalSegments != KeyTotalSegments {
return nil, fmt.Errorf("%v [expected: %v, actual: %v]", wrongHeaderKeyErrorMsg, KeyTotalSegments, keyTotalSegments)
}

// check the existence of MsgHeaderSegmentIdx header
keySegmentIdx := string(msg.Headers[MsgHeaderSegmentIdx].Key)
if keySegmentIdx != KeySegmentIdx {
return nil, fmt.Errorf("%v [expected: %v, actual: %v]", wrongHeaderKeyErrorMsg, KeySegmentIdx, keySegmentIdx)
}

key := string(msg.Key)
totalSegments := binary.BigEndian.Uint64(msg.Headers[MsgHeaderTotalSegments].Value)
segmentIdx := binary.BigEndian.Uint64(msg.Headers[MsgHeaderSegmentIdx].Value)
return &Segment{
orig: msg,
key: key,
total: totalSegments,
index: segmentIdx,
value: msg.Value,
version: MsgVersion1_0,
producerId: producerId,
}, nil
}

func newSegmentV1_1(msg *sarama.ConsumerMessage) (*Segment, error) {
headerLen := len(msg.Headers)
if headerLen != MsgHeaderLength {
return nil, fmt.Errorf("%v [header length: %v]", wrongHeaderNumberErrorMsg, headerLen)
}

keyProducerId := string(msg.Headers[MsgHeaderProducerId].Key)
if keyProducerId != KeyProducerId {
return nil, fmt.Errorf("%v [expected: %v, actual: %v]", wrongHeaderKeyErrorMsg, KeyProducerId, keyProducerId)
}
producerId := string(msg.Headers[MsgHeaderProducerId].Value)

// check the existence of KeyTotalSegments header
keyTotalSegments := string(msg.Headers[MsgHeaderTotalSegments].Key)
if keyTotalSegments != KeyTotalSegments {
return nil, fmt.Errorf("%v [expected: %v, actual: %v]", wrongHeaderKeyErrorMsg, KeyTotalSegments, keyTotalSegments)
}

// check the existence of MsgHeaderSegmentIdx header
keySegmentIdx := string(msg.Headers[MsgHeaderSegmentIdx].Key)
if keySegmentIdx != KeySegmentIdx {
return nil, fmt.Errorf("%v [expected: %v, actual: %v]", wrongHeaderKeyErrorMsg, KeySegmentIdx, keySegmentIdx)
}

key := string(msg.Key)
totalSegments, err := strconv.ParseUint(string(msg.Headers[MsgHeaderTotalSegments].Value), 10, 64)
if err != nil {
return nil, fmt.Errorf("failed to parse totalSegments from message header (%v)", err)
}

segmentIdx, err := strconv.ParseUint(string(msg.Headers[MsgHeaderSegmentIdx].Value), 10, 64)
if err != nil {
return nil, fmt.Errorf("failed to parse segmentIdx from message header (%v)", err)
}

return &Segment{
orig: msg,
key: key,
total: totalSegments,
index: segmentIdx,
value: msg.Value,
version: MsgVersion1_1,
producerId: producerId,
}, nil
}

// newSegment creates a new segment structure after parsing the headers.
func newSegment(msg *sarama.ConsumerMessage) (*Segment, error) {
if msg == nil {
return nil, errors.New(nilConsumerMessageErrorMsg)
}

headerLen := len(msg.Headers)
if headerLen < MsgHeaderLength {
return newSegmentLegacy(msg)
}

keyVersion := string(msg.Headers[MsgHeaderVersion].Key)
if keyVersion != KeyVersion {
return nil, fmt.Errorf("%v [expected: %v, actual: %v]", wrongHeaderKeyErrorMsg, KeyVersion, keyVersion)
}

version := string(msg.Headers[MsgHeaderVersion].Value)
switch version {
case MsgVersion1_1:
return newSegmentV1_1(msg)
case MsgVersion1_0:
return newSegmentV1_0(msg)
default:
return nil, fmt.Errorf("%v [available: %v, %v]", wrongMsgVersionErrorMsg, MsgVersion1_0, MsgVersion1_1)
}

if headerLen != MsgHeaderLength && headerLen != LegacyMsgHeaderLength {
return nil, fmt.Errorf("%v [header length: %v]", wrongHeaderNumberErrorMsg, headerLen)
}
Expand Down
51 changes: 38 additions & 13 deletions datasync/chaindatafetcher/kafka/kafka.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -18,6 +18,7 @@ package kafka

import (
"encoding/json"
"strconv"

"github.com/Shopify/sarama"
"github.com/klaytn/klaytn/common"
Expand Down Expand Up @@ -46,6 +47,7 @@ const (

const (
MsgVersion1_0 = "1.0"
MsgVersion1_1 = "1.1"
)

type IKey interface {
Expand Down Expand Up @@ -164,19 +166,34 @@ func (k *Kafka) makeProducerMessage(topic, key string, segment []byte, segmentId
},
Value: sarama.ByteEncoder(segment),
}
return msg
}

if k.config.MsgVersion == MsgVersion1_0 {
extraHeaders := []sarama.RecordHeader{
{
Key: []byte(KeyVersion),
Value: []byte(k.config.MsgVersion),
},
{
Key: []byte(KeyProducerId),
Value: []byte(k.config.ProducerId),
},
}
msg.Headers = append(msg.Headers, extraHeaders...)
func (k *Kafka) makeProducerMessageV1_0(topic, key string, segment []byte, segmentIdx, totalSegments uint64) *sarama.ProducerMessage {
msg := k.makeProducerMessage(topic, key, segment, segmentIdx, totalSegments)
extraHeaders := []sarama.RecordHeader{
{
Key: []byte(KeyVersion),
Value: []byte(k.config.MsgVersion),
},
{
Key: []byte(KeyProducerId),
Value: []byte(k.config.ProducerId),
},
}
msg.Headers = append(msg.Headers, extraHeaders...)
return msg
}

func (k *Kafka) makeProducerMessageV1_1(topic, key string, segment []byte, segmentIdx, totalSegments uint64) *sarama.ProducerMessage {
msg := k.makeProducerMessageV1_0(topic, key, segment, segmentIdx, totalSegments)
msg.Headers[0] = sarama.RecordHeader{
Key: []byte(KeyTotalSegments),
Value: []byte(strconv.FormatUint(segmentIdx, 10)),
}
msg.Headers[1] = sarama.RecordHeader{
Key: []byte(KeySegmentIdx),
Value: []byte(strconv.FormatUint(totalSegments, 10)),
}
return msg
}
Expand All @@ -191,8 +208,16 @@ func (k *Kafka) Publish(topic string, data interface{}) error {
key = v.Key()
}
segments, totalSegments := k.split(dataBytes)
var msg *sarama.ProducerMessage
for idx, segment := range segments {
msg := k.makeProducerMessage(topic, key, segment, uint64(idx), uint64(totalSegments))
switch k.config.MsgVersion {
case MsgVersion1_1:
msg = k.makeProducerMessageV1_1(topic, key, segment, uint64(idx), uint64(totalSegments))
case MsgVersion1_0:
msg = k.makeProducerMessageV1_0(topic, key, segment, uint64(idx), uint64(totalSegments))
default:
msg = k.makeProducerMessage(topic, key, segment, uint64(idx), uint64(totalSegments))
}
_, _, err = k.producer.SendMessage(msg)
if err != nil {
logger.Error("sending kafka message is failed", "err", err, "segmentIdx", idx, "key", key)
Expand Down