Kafka 消費者抵消導出 golang -- sharma 或 confluent-kafka-go lib
[英]Kafka consumer offset export golang -- sharma or confluent-kafka-go lib
問題描述
我試圖找到一種對消費者組執行偏移重置操作的方法，例如在 Kafka 命令中是這樣的：
kafka-consumer-groups.sh --bootstrap-server $kfk --dry-run --reset-offsets --topic $t --group $cg1 --to-current --export | tee topic-offset.csv
kafka-consumer-groups.sh --bootstrap-server $kfk --dry-run --reset-offsets --topic $t --group $cg2 --to-current
然后基於該導出文件導入新的偏移量？
kafka-consumer-groups.sh --bootstrap-server $kfk --execute --reset-offsets --topic $t --group $cg2 --from-file topic-offset.csv
從文件導出導入不是問題...只是似乎找不到獲取然后設置偏移量的方法..
那么有人在使用sharma或confluent-kafka-go lib 玩這個嗎？
提前感謝您的任何建議:)
2 個解決方案
解決方案1
1 2022-04-29 19:51:27
好的，我想我發現它只需要實施完整的解決方案，但我應該擅長
func main() {
brokers := []string{BK}
kfk.Logger = log.New(os.Stdout, "", log.LstdFlags)
cfg := kfk.NewConfig()
cfg.ClientID = CID
client, _ := kfk.NewClient(brokers, cfg)
//fmt.Println(client)
offsetMg, _ := kfk.NewOffsetManagerFromClient(CG, client)
defer offsetMg.Close()
consumer, _ := kfk.NewConsumerFromClient(client)
defer consumer.Close()
partitions, _ := consumer.Partitions(TOPIC)
for _, p := range partitions {
pom, _ := offsetMg.ManagePartition(TOPIC, p)
ofs, pomStr := pom.NextOffset()
fmt.Printf("Partition: %v -> nextOffset: %v:%s\n", p, ofs, pomStr)
}
fmt.Println("--")
}
這給了我這個輸出：
Partition: 0 -> nextOffset: 31:
Partition: 1 -> nextOffset: 30:
Partition: 2 -> nextOffset: 45:
Partition: 3 -> nextOffset: 39:
Partition: 4 -> nextOffset: 45:
Partition: 5 -> nextOffset: 39:
Partition: 6 -> nextOffset: 37:
Partition: 7 -> nextOffset: 42:
Partition: 8 -> nextOffset: 43:
Partition: 9 -> nextOffset: 35:
Partition: 10 -> nextOffset: 41:
Partition: 11 -> nextOffset: 36:
這與 java 命令完全相同：
❯ kafka-consumer-groups.sh --bootstrap-server $kfk --dry-run --reset-offsets --topic $t --group $cg1 --to-current | sort -k3 -n
GROUP TOPIC PARTITION NEW-OFFSET
propertest-cg1 propertest 0 31
propertest-cg1 propertest 1 30
propertest-cg1 propertest 2 45
propertest-cg1 propertest 3 39
propertest-cg1 propertest 4 45
propertest-cg1 propertest 5 39
propertest-cg1 propertest 6 37
propertest-cg1 propertest 7 42
propertest-cg1 propertest 8 43
propertest-cg1 propertest 9 35
propertest-cg1 propertest 10 41
propertest-cg1 propertest 11 36
所以現在剩下的就是將這些數據導出到文件並使用函數
// ResetOffset resets to the provided offset, alongside a metadata string that
// represents the state of the partition consumer at that point in time. Reset
// acts as a counterpart to MarkOffset, the difference being that it allows to
// reset an offset to an earlier or smaller value, where MarkOffset only
// allows incrementing the offset. cf MarkOffset for more details.
ResetOffset(topic string, partition int32, offset int64, metadata string)
設置新的偏移量...
解決方案2
0 已采納 2022-05-24 04:28:09
這是一些簡單的基於 YMAL 配置的偏移重置
https://github.com/nXnUs25/kfk-offsets
用於 LAG 監控消費者組列表和偏移重置的命令行工具。
我們有相同的偏移量......現在模擬這個過程，我們將產生消息到主題並繼續消費其中一個消費者組propertest-cg1a11，我們將產生5條消息並在該消費者組上消費它們，這將為我們提供我們消費的信息
^CProcessed a total of 33 messages 28 + 5
❯ ./kfkgo lag
Using config file: ~/kfk-offsets/kfk-offset.yaml
GROUP TOPIC PARTITION CURRENT-OFFSET LOG-END-OFFSET LAG
propertest-cg1a11 propertest 0 183 183 0
propertest-cg1a11 propertest 1 165 165 0
propertest-cg1a11 propertest 2 192 192 0
propertest-cg1a11 propertest 3 177 177 0
propertest-cg1a11 propertest 4 192 192 0
propertest-cg1a11 propertest 5 169 169 0
propertest-cg1a11 propertest 6 180 180 0
propertest-cg1a11 propertest 7 164 164 0
propertest-cg1a11 propertest 8 195 195 0
propertest-cg1a11 propertest 9 188 188 0
propertest-cg1a11 propertest 10 184 184 0
propertest-cg1a11 propertest 11 184 184 0
TOTAL LAG: 0
❯ ./kfkgo lag -g propertest-cg -t propertest
Using config file: ~/kfk-offsets/kfk-offset.yaml
GROUP TOPIC PARTITION CURRENT-OFFSET LOG-END-OFFSET LAG
propertest-cg propertest 0 179 183 4
propertest-cg propertest 1 162 165 3
propertest-cg propertest 2 190 192 2
propertest-cg propertest 3 174 177 3
propertest-cg propertest 4 187 192 5
propertest-cg propertest 5 167 169 2
propertest-cg propertest 6 177 180 3
propertest-cg propertest 7 160 164 4
propertest-cg propertest 8 192 195 3
propertest-cg propertest 9 185 188 3
propertest-cg propertest 10 183 184 1
propertest-cg propertest 11 184 184 0
TOTAL LAG: 33
現在我們將從propertest-cg 的偏移量再次移回propertest-cg1a11，這將允許我們在該CG 上處理相同的消息。
❯ ./kfkgo offset -m
Using config file: ~/kfk-offsets/kfk-offset.yaml
moving
並再次驗證：
卡夫卡命令： kafka-consumer-groups.sh
propertest-cg1a11 propertest 0 179 183 4 - - -
propertest-cg1a11 propertest 1 162 165 3 - - -
propertest-cg1a11 propertest 2 190 192 2 - - -
propertest-cg1a11 propertest 3 174 177 3 - - -
propertest-cg1a11 propertest 4 187 192 5 - - -
propertest-cg1a11 propertest 5 167 169 2 - - -
propertest-cg1a11 propertest 6 177 180 3 - - -
propertest-cg1a11 propertest 7 160 164 4 - - -
propertest-cg1a11 propertest 8 192 195 3 - - -
propertest-cg1a11 propertest 9 185 188 3 - - -
propertest-cg1a11 propertest 10 183 184 1 - - -
propertest-cg1a11 propertest 11 184 184 0 - - -
Consumer group 'propertest-cg' has no active members.
propertest-cg propertest 0 179 183 4 - - -
propertest-cg propertest 1 162 165 3 - - -
propertest-cg propertest 2 190 192 2 - - -
propertest-cg propertest 3 174 177 3 - - -
propertest-cg propertest 4 187 192 5 - - -
propertest-cg propertest 5 167 169 2 - - -
propertest-cg propertest 6 177 180 3 - - -
propertest-cg propertest 7 160 164 4 - - -
propertest-cg propertest 8 192 195 3 - - -
propertest-cg propertest 9 185 188 3 - - -
propertest-cg propertest 10 183 184 1 - - -
propertest-cg propertest 11 184 184 0 - - -
❯ ./kfkgo lag -g propertest-cg -t propertest
Using config file: ~/kfk-offsets/kfk-offset.yaml
GROUP TOPIC PARTITION CURRENT-OFFSET LOG-END-OFFSET LAG
propertest-cg propertest 0 179 183 4
propertest-cg propertest 1 162 165 3
propertest-cg propertest 2 190 192 2
propertest-cg propertest 3 174 177 3
propertest-cg propertest 4 187 192 5
propertest-cg propertest 5 167 169 2
propertest-cg propertest 6 177 180 3
propertest-cg propertest 7 160 164 4
propertest-cg propertest 8 192 195 3
propertest-cg propertest 9 185 188 3
propertest-cg propertest 10 183 184 1
propertest-cg propertest 11 184 184 0
TOTAL LAG: 33
❯ ./kfkgo lag
Using config file: ~/kfk-offsets/kfk-offset.yaml
GROUP TOPIC PARTITION CURRENT-OFFSET LOG-END-OFFSET LAG
propertest-cg1a11 propertest 0 179 183 4
propertest-cg1a11 propertest 1 162 165 3
propertest-cg1a11 propertest 2 190 192 2
propertest-cg1a11 propertest 3 174 177 3
propertest-cg1a11 propertest 4 187 192 5
propertest-cg1a11 propertest 5 167 169 2
propertest-cg1a11 propertest 6 177 180 3
propertest-cg1a11 propertest 7 160 164 4
propertest-cg1a11 propertest 8 192 195 3
propertest-cg1a11 propertest 9 185 188 3
propertest-cg1a11 propertest 10 183 184 1
propertest-cg1a11 propertest 11 184 184 0
TOTAL LAG: 33
自述文件中的更多示例
如何在 confluent-kafka-go 中創建具有多個消費者的消費者組？
[英]how to create consumer group with multiple consumers in confluent-kafka-go?
如何使用confluent-kafka-go獲取kafka代理錯誤的事件
[英]How to get events for kafka broker errors using confluent-kafka-go
我們如何使用 confluent-kafka-go 客戶端確保可靠和低延遲的 kafka 編寫？
[英]How can we ensure reliable and low-latency kafka writing using confluent-kafka-go client?
librdkafka 和 confluent-kafka-go 是否支持基於 JKS 的 SSL 配置？
[英]Does librdkafka and confluent-kafka-go supports JKS based SSL Configuration?
如何設置消費者從Golang Kafka 10中的特定偏移量開始
[英]How to set consumer to start from a specific offset in Golang Kafka 10
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