使用win7用idea進行kafka進行生產者消費者遠端連線時
出現

[kafka-producer-network-thread | producer-1] WARN org.apache.kafka.clients.NetworkClient - [Producer clientId=producer-1] Connection to node -3 could not be established. Broker may not be available.
[kafka-producer-network-thread | producer-1] WARN org.apache.kafka.clients.NetworkClient - [Producer clientId=producer-1] Connection to node -2 could not be established. Broker may not be available.
[kafka-producer-network-thread | producer-1] WARN org.apache.kafka.clients.NetworkClient - [Producer clientId=producer-1] Connection to node -3 could not be established. Broker may not be available.
[kafka-producer-network-thread | producer-1] WARN org.apache.kafka.clients.NetworkClient - [Producer clientId=producer-1] Connection to node -1 could not be established. Broker may not be available.

 

問題

百度了半天，無果，出現的都是伺服器上執行時的連線問題

解決方案：1.檢視伺服器防火牆是否關閉

service iptables status

關閉防火牆`service iptables stop

2.檢視伺服器埠是否開放

netstat -nltp

2.win7系統下點選win+r 輸入cmd
調出控制檯

ping 伺服器ip地址或者主機名

發現ip地址可以ping通，主機名不可以
修改win7資料夾將主機名配置，開啟C:\Windows\System32\drivers\etc

修改hosts檔案

注意此處ip地址，修改為地址+主機名
4.最後執行消費者，生產者
生產者：

[main] INFO org.apache.kafka.clients.producer.ProducerConfig - ProducerConfig values: 
	acks = all
	batch.size = 16384
	bootstrap.servers = [mini1:9092, mini2:9092, mini3:9092]
	buffer.memory = 33554432
	client.id = 
	compression.type = none
	connections.max.idle.ms = 540000
	enable.idempotence = false
	interceptor.classes = []
	key.serializer = class org.apache.kafka.common.serialization.StringSerializer
	linger.ms = 0
	max.block.ms = 60000
	max.in.flight.requests.per.connection = 5
	max.request.size = 1048576
	metadata.max.age.ms = 300000
	metric.reporters = []
	metrics.num.samples = 2
	metrics.recording.level = INFO
	metrics.sample.window.ms = 30000
	partitioner.class = class org.apache.kafka.clients.producer.internals.DefaultPartitioner
	receive.buffer.bytes = 32768
	reconnect.backoff.max.ms = 1000
	reconnect.backoff.ms = 50
	request.timeout.ms = 30000
	retries = 0
	retry.backoff.ms = 100
	sasl.jaas.config = null
	sasl.kerberos.kinit.cmd = /usr/bin/kinit
	sasl.kerberos.min.time.before.relogin = 60000
	sasl.kerberos.service.name = null
	sasl.kerberos.ticket.renew.jitter = 0.05
	sasl.kerberos.ticket.renew.window.factor = 0.8
	sasl.mechanism = GSSAPI
	security.protocol = PLAINTEXT
	send.buffer.bytes = 131072
	ssl.cipher.suites = null
	ssl.enabled.protocols = [TLSv1.2, TLSv1.1, TLSv1]
	ssl.endpoint.identification.algorithm = null
	ssl.key.password = null
	ssl.keymanager.algorithm = SunX509
	ssl.keystore.location = null
	ssl.keystore.password = null
	ssl.keystore.type = JKS
	ssl.protocol = TLS
	ssl.provider = null
	ssl.secure.random.implementation = null
	ssl.trustmanager.algorithm = PKIX
	ssl.truststore.location = null
	ssl.truststore.password = null
	ssl.truststore.type = JKS
	transaction.timeout.ms = 60000
	transactional.id = null
	value.serializer = class org.apache.kafka.common.serialization.StringSerializer

[main] INFO org.apache.kafka.common.utils.AppInfoParser - Kafka version : 1.1.0
[main] INFO org.apache.kafka.common.utils.AppInfoParser - Kafka commitId : fdcf75ea326b8e07
[kafka-producer-network-thread | producer-1] INFO org.apache.kafka.clients.Metadata - Cluster ID: 7qbMpXt1QeSRH6O5JoEnuA
[main] INFO org.apache.kafka.clients.producer.KafkaProducer - [Producer clientId=producer-1] Closing the Kafka producer with timeoutMillis = 9223372036854775807 ms.

 

資訊傳送成功
消費者：

提交成功
ok！！！！！！