That was a blooper. But even after correcting, it still isn't working.
Still getting the same error.
Here are the configs again:
*Kafka config: *
KafkaServer {
org.apache.kafka.common.security.plain.PlainLoginModule required
username="admin"
password="admin-secret"
user_admin="admin-secret"
user_dip="dip";
};
KafkaClient {
org.apache.kafka.common.security.plain.PlainLoginModule required
username="dip"
password="dip-secret";
};
*Zookeeper config:*
Server {
org.apache.kafka.common.security.plain.PlainLoginModule required
username="admin"
password="admin-secret"
user_admin="admin-secret";
};
On Mon, Apr 8, 2019 at 2:11 PM [email protected] <[email protected]> wrote:
>
>
> On 2019/04/03 13:08:45, Shantanu Deshmukh <[email protected]> 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
>
