![](/img/trans.png)
[英]How to disable 'spark.security.credentials.${service}.enabled' in Structured streaming while connecting to a kafka cluster
[英]Kafka NodePort service is unreachable outside of cluster
我一直在嘗試使用Helm圖表部署Kafka。 所以我為Kafka pod定義了NodePort服務。 我檢查了控制台Kafka生產者和消費者使用相同的主機和端口 - 他們正常工作。 但是,當我創建Spark應用程序作為數據使用者而Kafka作為生產者時,他們無法連接到Kafka service0。 我使用minikube ip(而不是node ip)作為主機和服務NodePort端口。 雖然,在Spark日志中,我看到NodePort服務解析了端點,並且發現了代理作為pods和端口的代理:
INFO AbstractCoordinator: [Consumer clientId=consumer-1, groupId=avro_data] Discovered group coordinator 172.17.0.20:9092 (id: 2147483645 rack: null)
INFO ConsumerCoordinator: [Consumer clientId=consumer-1, groupId=avro_data] Revoking previously assigned partitions []
INFO AbstractCoordinator: [Consumer clientId=consumer-1, groupId=avro_data] (Re-)joining group
WARN NetworkClient: [Consumer clientId=consumer-1, groupId=avro_data] Connection to node 2147483645 (/172.17.0.20:9092) could not be established. Broker may not be available.
INFO AbstractCoordinator: [Consumer clientId=consumer-1, groupId=avro_data] Group coordinator 172.17.0.20:9092 (id: 2147483645 rack: null) is unavailable or invalid, will attempt rediscovery
WARN NetworkClient: [Consumer clientId=consumer-1, groupId=avro_data] Connection to node 2 (/172.17.0.20:9092) could not be established. Broker may not be available.
WARN NetworkClient: [Consumer clientId=consumer-1, groupId=avro_data] Connection to node 0 (/172.17.0.12:9092) could not be established. Broker may not be available.
如何改變這種行為?
NodePort服務定義如下所示:
kind: Service
apiVersion: v1
metadata:
name: kafka-service
spec:
selector:
app: cp-kafka
release: my-confluent-oss
ports:
- protocol: TCP
targetPort: 9092
port: 32400
nodePort: 32400
type: NodePort
Spark消費者配置:
def kafkaParams() = Map[String, Object](
"bootstrap.servers" -> "192.168.99.100:32400",
"schema.registry.url" -> "http://192.168.99.100:8081",
"key.deserializer" -> classOf[StringDeserializer],
"value.deserializer" -> classOf[KafkaAvroDeserializer],
"group.id" -> "avro_data",
"auto.offset.reset" -> "earliest",
"enable.auto.commit" -> (false: java.lang.Boolean)
)
Kafka制作人配置:
props.put("bootstrap.servers", "192.168.99.100:32400")
props.put("client.id", "avro_data")
props.put("key.serializer", "org.apache.kafka.common.serialization.StringSerializer")
props.put("value.serializer", "io.confluent.kafka.serializers.KafkaAvroSerializer")
props.put("schema.registry.url", "http://192.168.99.100:32500")
Kafka的所有K8服務:
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
kafka-service NodePort 10.99.113.234 <none> 32400:32400/TCP 6m34s
kubernetes ClusterIP 10.96.0.1 <none> 443/TCP 27d
my-confluent-oss-cp-kafka ClusterIP 10.100.156.108 <none> 9092/TCP 102m
my-confluent-oss-cp-kafka-connect ClusterIP 10.99.78.89 <none> 8083/TCP 102m
my-confluent-oss-cp-kafka-headless ClusterIP None <none> 9092/TCP 102m
my-confluent-oss-cp-kafka-rest ClusterIP 10.100.152.109 <none> 8082/TCP 102m
my-confluent-oss-cp-ksql-server ClusterIP 10.96.249.202 <none> 8088/TCP 102m
my-confluent-oss-cp-schema-registry ClusterIP 10.109.27.45 <none> 8081/TCP 102m
my-confluent-oss-cp-zookeeper ClusterIP 10.102.182.90 <none> 2181/TCP 102m
my-confluent-oss-cp-zookeeper-headless ClusterIP None <none> 2888/TCP,3888/TCP 102m
schema-registry-service NodePort 10.103.100.64 <none> 32500:32500/TCP 33m
zookeeper-np NodePort 10.98.180.130 <none> 32181:32181/TCP 53m
當我試圖從外面訪問在minikube上運行的kafka broker( cp-helm-chart )時,我遇到了類似的問題。
我在這里如何解決它。 在從本地存儲庫使用helm install安裝之前。
現在,您可以通過將bootstrap.servers指向196.169.99.100:31090來從外部訪問在k8s集群中運行的kafka代理
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.