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From 1095193290@qq.com <1095193...@qq.com>
Subject Re: Kafka SASL auth setup error: Connection to node 0 (localhost/127.0.0.1:9092) terminated during authentication
Date Mon, 08 Apr 2019 08:41:08 GMT


On 2019/04/03 13:08:45, Shantanu Deshmukh <shantanu88d@gmail.com> wrote: 
> Hello everyone,
> 
> I am trying to setup Kafka SASL authentication on my single node Kafka on
> my local machine. version 2.
> 
> Here's my Kafka broker JAAS file:
> 
> KafkaServer {
>    org.apache.kafka.common.security.plain.PlainLoginModule required
>    username="admin"
>    password="admin"
>    user_admin="admin"
>    user_dip="dip";
> };
> Client {
>    org.apache.kafka.common.security.plain.PlainLoginModule required
>    username="admin"
>    password="admin-secret";
> };
> 
> Zookeeper JAAS file:
> 
> Server {
>    org.apache.kafka.common.security.plain.PlainLoginModule required
>    username="admin"
>    password="admin-secret"
>    user_admin="admin-secret";
> };
> 
> Kafka broker properties
> 
> listeners=SASL_PLAINTEXT://localhost:9092authroizer.class.name=kafka.security.auth.SimpleAclAuthorizer
> security.inter.broker.protocol=SASL_PLAINTEXT
> sasl.mechanism.inter.broker.protocol=PLAINTEXT
> sasl.enabled.mechanisms=PLAINTEXT
> 
> Zookeeper properties:
> 
> authProvider.1=org.apache.zookeeper.server.auth.SASLAuthenticationProvider
> requireClientAuthScheme=sasl
> jaasLoginRenew=3600000
> 
> When I try to start Kafka server I am continuously getting this error.
> 
> [2019-04-03 16:32:31,267] DEBUG Accepted connection from
> /127.0.0.1:45794 on /127.0.0.1:9092 and assigned it to processor 1,
> sendBufferSize [actual|requested]: [102400|102400] recvBufferSize
> [actual|requested]: [102400|102400] (kafka.network.Acceptor)
> [2019-04-03 16:32:31,267] DEBUG Processor 1 listening to new
> connection from /127.0.0.1:45794 (kafka.network.Processor)
> [2019-04-03 16:32:31,268] WARN [Controller id=0, targetBrokerId=0]
> Unexpected error from localhost/127.0.0.1; closing connection
> (org.apache.kafka.common.network.Selector)
> java.lang.NullPointerException
>     at org.apache.kafka.common.security.authenticator.SaslClientAuthenticator.sendSaslClientToken(SaslClientAuthenticator.java:266)
>     at org.apache.kafka.common.security.authenticator.SaslClientAuthenticator.authenticate(SaslClientAuthenticator.java:204)
>     at org.apache.kafka.common.network.KafkaChannel.prepare(KafkaChannel.java:141)
>     at org.apache.kafka.common.network.Selector.pollSelectionKeys(Selector.java:532)
>     at org.apache.kafka.common.network.Selector.poll(Selector.java:467)
>     at org.apache.kafka.clients.NetworkClient.poll(NetworkClient.java:535)
>     at org.apache.kafka.clients.NetworkClientUtils.awaitReady(NetworkClientUtils.java:74)
>     at kafka.controller.RequestSendThread.brokerReady(ControllerChannelManager.scala:279)
>     at kafka.controller.RequestSendThread.doWork(ControllerChannelManager.scala:233)
>     at kafka.utils.ShutdownableThread.run(ShutdownableThread.scala:82)
> [2019-04-03 16:32:31,268] WARN [Controller id=0, targetBrokerId=0]
> Connection to node 0 (localhost/127.0.0.1:9092) terminated during
> authentication. This may indicate that authentication failed due to
> invalid credentials. (org.apache.kafka.clients.NetworkClient)
> 
> Please help. Unable to understand this problem.
> 
> 
> Thanks & Regards,
> 
> Shantanu Deshmukh
> 
user_admin="admin" in KafkaServer is not consistent with  password="admin-secret" in Client

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