spark消费kafka(cdh启用kerberos)

不生产博客，只是别人博客的裁缝 一入kerberos深似海，从此节操是个玩意儿

之前写过一篇spark消费kafka问题记录(cdh5.16.2)，主要记录了安装spark2后，spark的问题，和本地可以执行，而一提集群缺包的问题，这篇主要记录下启用kerberos后的一些问题

版本信息如下

集群启用kerberos后，想用命令行测下kafka

kafka-topics --create --zookeeper ip:port --replication-factor 1 --partitions 1 --topic test

创建成功，虽然没有kinit 

然后命令行模拟生产消费

kafka-console-producer --broker-list ip:port --topic test

kafka-console-consumer --bootstrap-server ip:port --topic test

 

生产者那刚输了个字符串然后回车，都报下面的错

 WARN clients.NetworkClient: Bootstrap broker host:9092 (id: -3 rack: null) disconnected

 WARN clients.NetworkClient: Bootstrap broker host:9092 (id: -1 rack: null) disconnected

 WARN clients.NetworkClient: Bootstrap broker host:9092 (id: -2 rack: null) disconnected

然后网上搜，解决办法是这样的

7180 kafka搜security.inter.broker.protocol，默认是第二个，改为SASL_PLAINTEXT

 然后创建两个文件client.properties、jaas.conf

 

添加环境变量:

export KAFKA_OPTS="-Djava.security.auth.login.config=/home/cdh/kafka/jaas.conf"

然后记得kinit下，哪个用户都可以，反正没acl，不kinit会报错，报错信息如下

 

javax.security.auth.login.LoginException: Could not login: the client is being asked for a password, but the Kafka client code does not currently support obtaining a password from the user. not available to garner  authentication information from the user

 

Could not login: the client is being asked for a password, but the Kafka client code does not currently support obtaining a password from the user. not available to garner  authentication information from the user

 

然后加参数，继续执行，不报错了

 

kafka-console-producer --broker-list ip:port --topic test --producer.config /home/cdh/kafka/client.properties

kafka-console-consumer --bootstrap-server ip:port --topic test --consumer.config /home/cdh/kafka/client.properties

 

 

然后再说spark消费kafka，代码中需添加如下:

def main(args: Array[String]): Unit = { //System.setProperty("java.security.krb5.conf", "C:\\ProgramData\\MIT\\Kerberos5\\krb5.ini") //System.setProperty("java.security.auth.login.config", "C:\\temp\\jass.conf") System.setProperty("java.security.krb5.conf", "/etc/krb5.conf") System.setProperty("java.security.auth.login.config", "/home/cdh/kakfa/jaas.conf") ..... }

因为我在本地测试，所以注释掉的前两行是本地测试用的，然后kafka的参数也需要添加

val kafkaParams = Map[String, Object]( "bootstrap.servers" -> "ip:port", "key.deserializer" -> classOf[StringDeserializer], "value.deserializer" -> classOf[StringDeserializer], "group.id" -> "zlq_test", "auto.offset.reset" -> "earliest", "security.protocol" -> "SASL_PLAINTEXT",//需要添加 "sasl.kerberos.service.name" -> "kafka",//需要添加 "enable.auto.commit" -> (false: java.lang.Boolean) )

记得本地测试或者提交集群的时候，记得kinit，本地的登陆下，get Ticket

win版kerberos的安装可以看我后面写的博客