[ https://issues.apache.org/jira/browse/KAFKA-5458?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Sagar Lad resolved KAFKA-5458. ------------------------------ Resolution: Fixed actually there were multiple consumers created from code - each with different config file. i missed SASL config for one of the consumer (for other it was working fine with appropriate logs). Resolved : i missed SASL config for one of the consumer - after adding it worked ! > SASL handshake fails for METADATA requests > ------------------------------------------ > > Key: KAFKA-5458 > URL: https://issues.apache.org/jira/browse/KAFKA-5458 > Project: Kafka > Issue Type: Bug > Components: KafkaConnect > Affects Versions: 0.10.1.1 > Reporter: Sagar Lad > Attachments: kafka_client_jaas.conf, kafka_server_jaas.conf, > producer.properties, server.properties > > > i have enabled SASL Authentication for my kafka with > {code:java} > listeners=SASL_PLAINTEXT://0.0.0.0:9092 > advertised.listeners=SASL_PLAINTEXT://0.0.0.0:9092 > sasl.enabled.mechanisms=PLAIN > security.protocol=SASL_PLAINTEXT > security.inter.broker.protocol=SASL_PLAINTEXT > sasl.mechanism=PLAIN > sasl.mechanism.inter.broker.protocol=PLAIN > {code} > but in kafkaServer.out getting > {code:java} > [2017-06-16 11:21:12,167] DEBUG Set SASL server state to HANDSHAKE_REQUEST > (org.apache.kafka.common.security.authenticator.SaslServerAuthenticator) > [2017-06-16 11:21:12,167] DEBUG Handle Kafka request METADATA > (org.apache.kafka.common.security.authenticator.SaslServerAuthenticator) > [2017-06-16 11:21:12,167] DEBUG Set SASL server state to FAILED > (org.apache.kafka.common.security.authenticator.SaslServerAuthenticator) > [2017-06-16 11:21:12,167] DEBUG Connection with /127.0.0.1 disconnected > (org.apache.kafka.common.network.Selector) > java.io.IOException: > org.apache.kafka.common.errors.IllegalSaslStateException: Unexpected Kafka > request of type METADATA during SASL handshake. > at > org.apache.kafka.common.security.authenticator.SaslServerAuthenticator.authenticate(SaslServerAuthenticator.java:243) > at > org.apache.kafka.common.network.KafkaChannel.prepare(KafkaChannel.java:64) > at > org.apache.kafka.common.network.Selector.pollSelectionKeys(Selector.java:338) > at org.apache.kafka.common.network.Selector.poll(Selector.java:291) > at kafka.network.Processor.poll(SocketServer.scala:476) > at kafka.network.Processor.run(SocketServer.scala:416) > at java.lang.Thread.run(Thread.java:745) > {code} > where as in client log i observed > {code:java} > #### 2017-06-16 11:33:33,501 WARN [kafka-producer-network-thread | > producer-7] NetworkClient.maybeHandleDisconnection (NetworkClient.java:568) > - Bootstrap broker 127.0.0.1:9092 disconnected > #### 2017-06-16 11:33:33,607 WARN [kafka-producer-network-thread | > producer-7] NetworkClient.maybeHandleDisconnection (NetworkClient.java:568) > - Bootstrap broker 127.0.0.1:9092 disconnected > #### 2017-06-16 11:33:33,721 WARN [kafka-producer-network-thread | > producer-7] NetworkClient.maybeHandleDisconnection (NetworkClient.java:568) > - Bootstrap broker 127.0.0.1:9092 disconnected > #### 2017-06-16 11:33:33,834 WARN [kafka-producer-network-thread | > producer-7] NetworkClient.maybeHandleDisconnection (NetworkClient.java:568) > - Bootstrap broker 127.0.0.1:9092 disconnected > #### 2017-06-16 11:33:33,952 WARN [kafka-producer-network-thread | > producer-7] NetworkClient.maybeHandleDisconnection (NetworkClient.java:568) > - Bootstrap broker 127.0.0.1:9092 disconnected > #### 2017-06-16 11:33:34,059 WARN [kafka-producer-network-thread | > producer-7] NetworkClient.maybeHandleDisconnection (NetworkClient.java:568) > - Bootstrap broker 127.0.0.1:9092 disconnected > #### 2017-06-16 11:33:34,162 WARN [kafka-producer-network-thread | > producer-7] NetworkClient.maybeHandleDisconnection (NetworkClient.java:568) > - Bootstrap broker 127.0.0.1:9092 disconnected > ### > {code} > metadata request are being every 100ms > *Problem* : > how can we make SASL handshake to support METADATA type requests -- This message was sent by Atlassian JIRA (v6.4.14#64029)