Unable to start Kafka Server using SASL_PLAINTEXT authentication - batch-file

Question

I'm trying to run Apache Kafka on Windows Server 2016 with the following configurations
server.propertiers:
delete.topic.enable=true
security.inter.broker.protocol=SASL_PLAINTEXT
sasl.mechanism.inter.broker.protocol=PLAIN
sasl.enabled.mechanisms=PLAIN
authorizer.class.name=kafka.security.auth.SimpleAclAuthorizer
allow.everyone.if.no.acl.found=true
security.protocol=SASL_PLAINTEXT
listeners=SASL_PLAINTEXT://127.0.0.1:9092
advertised.listeners=SASL_PLAINTEXT://localhost:9092
listener.security.protocol.map=SASL_PLAINTEXT:SASL_PLAINTEXT
kafka_server_jaas.conf:
KafkaServer {
org.apache.kafka.common.security.plain.PlainLoginModule required
username="username"
password="password"
user_kafkaadmin="password2";
};
Client {};
start-kafka.bat:
#echo off
SET KAFKA_OPTS = "-Djava.security.auth.login.config=C:\Kafka\config\kafka_server_jaas.conf"
C:\Kafka\bin\windows\kafka-server-start.bat C:\Kafka\config\server.properties
However I'm getting the following error
ERROR [KafkaServer id=0] Fatal error during KafkaServer startup. Prepare to shutdown (kafka.server.KafkaServer)
java.lang.IllegalArgumentException: Could not find a 'KafkaServer' or 'sasl_plaintext.KafkaServer' entry in the JAAS configuration. System property 'java.security.auth.login.config' is not set
at org.apache.kafka.common.security.JaasContext.defaultContext(JaasContext.java:133)
at org.apache.kafka.common.security.JaasContext.load(JaasContext.java:98)
at org.apache.kafka.common.security.JaasContext.loadServerContext(JaasContext.java:70)
at org.apache.kafka.common.network.ChannelBuilders.create(ChannelBuilders.java:121)
at org.apache.kafka.common.network.ChannelBuilders.serverChannelBuilder(ChannelBuilders.java:85)
at kafka.network.Processor.<init>(SocketServer.scala:747)
at kafka.network.SocketServer.newProcessor(SocketServer.scala:394)
at kafka.network.SocketServer$$anonfun$kafka$network$SocketServer$$addDataPlaneProcessors$1.apply$mcVI$sp(SocketServer.scala:279)
at scala.collection.immutable.Range.foreach$mVc$sp(Range.scala:160)
at kafka.network.SocketServer.kafka$network$SocketServer$$addDataPlaneProcessors(SocketServer.scala:278)
at kafka.network.SocketServer$$anonfun$createDataPlaneAcceptorsAndProcessors$1.apply(SocketServer.scala:241)
at kafka.network.SocketServer$$anonfun$createDataPlaneAcceptorsAndProcessors$1.apply(SocketServer.scala:238)
at scala.collection.mutable.ResizableArray$class.foreach(ResizableArray.scala:59)
at scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:48)
at kafka.network.SocketServer.createDataPlaneAcceptorsAndProcessors(SocketServer.scala:238)
at kafka.network.SocketServer.startup(SocketServer.scala:121)
at kafka.server.KafkaServer.startup(KafkaServer.scala:263)
at kafka.server.KafkaServerStartable.startup(KafkaServerStartable.scala:44)
at kafka.Kafka$.main(Kafka.scala:84)
at kafka.Kafka.main(Kafka.scala)
Am I missing something in the configuration?
Thank you,

Answer 1

Try to remove spaces before and after the equal sign:
SET KAFKA_OPTS=-Djava.security.auth.login.config=C:\Kafka\config\kafka_server_jaas.conf
Because normally you should not put a space on either side of the equal sign. A space before the equal sign will become part of the name; a space after the equal sign will become part of the value.