java kafka producer,Kafka Java Producer和kerberos

Getting error while sending message to kafka topic in kerberosed enviornment. We have cluster on hdp 2.3

But for sending messages, I have to do kinit explicitly first, then only I am able to send message to kafka topic.

I tried to do knit through java class but that also doesn't work.

PFB code:

package com.ct.test.kafka;

import java.util.Date;

import java.util.Properties;

import java.util.Random;

import kafka.javaapi.producer.Producer;

import kafka.producer.KeyedMessage;

import kafka.producer.ProducerConfig;

public class TestProducer {

public static void main(String[] args) {

String principalName = "ctadmin";

String keyTabPath = "/etc/security/keytabs/ctadmin.keytab";

boolean authStatus = CTSecurityUtil.loginUserFromKeytab(principalName, keyTabPath);

if (!authStatus) {

System.out.println("Authntication fails, try something else " + authStatus);

} else {

System.out.println("Authntication successfull " + authStatus);

}

System.setProperty("java.security.krb5.conf", "/etc/krb5.conf");

System.setProperty("java.security.auth.login.config", "/etc/kafka/2.3.4.0-3485/0/kafka_jaas.conf");

System.setProperty("javax.security.auth.useSubjectCredsOnly", "false");

System.setProperty("sun.security.krb5.debug", "true");

try {

long events = Long.parseLong("3");

Random rnd = new Random();

Properties props = new Properties();

System.out.println("After broker list- " + args[0]);

props.put("metadata.broker.list", args[0]);

props.put("serializer.class", "kafka.serializer.StringEncoder");

props.put("request.required.acks", "1");

props.put("security.protocol", "PLAINTEXTSASL");

//props.put("partitioner.class", "com.ct.test.kafka.SimplePartitioner");

System.out.println("After config prop -1");

ProducerConfig config = new ProducerConfig(props);

System.out.println("After config prop -2 config" + config);

Producer producer = new Producer(config);

System.out.println("After config prop -3");

for (long nEvents = 0L; nEvents < events; nEvents += 1L) {

Date runtime = new Date();

String ip = "192.168.2" + rnd.nextInt(255);

String msg = runtime + " www.example.com, " + ip;

KeyedMessage data = new KeyedMessage("test_march4", ip, msg);

System.out.println("After config prop -1 data" + data);

producer.send(data);

}

producer.close();

} catch (Throwable th) {

th.printStackTrace();

}

}

}

Pom.xml : All dependency downloaded from hortonworks repo.

org.apache.kafka

kafka_2.10

0.9.0.2.3.4.0-3485

org.apache.kafka

kafka-clients

0.9.0.2.3.4.0-3485

org.jasypt

jasypt-spring31

1.9.2

compile

org.apache.hadoop

hadoop-common

2.7.1.2.3.4.0-3485

Error :

Case1 : when I specify myuser kafka_jass.conf

log4j:WARN No appenders could be found for logger (kafka.utils.VerifiableProperties).

log4j:WARN Please initialize the log4j system properly.

log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.

After config prop -2 configkafka.producer.ProducerConfig@643293ae

java.lang.SecurityException: Configuration Error:

Line 6: expected [controlFlag]

at com.sun.security.auth.login.ConfigFile.(ConfigFile.java:110)

at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)

at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)

at java.lang.reflect.Constructor.newInstance(Constructor.java:526)

at java.lang.Class.newInstance(Class.java:379)

at javax.security.auth.login.Configuration$2.run(Configuration.java:258)

at javax.security.auth.login.Configuration$2.run(Configuration.java:250)

at java.security.AccessController.doPrivileged(Native Method)

at javax.security.auth.login.Configuration.getConfiguration(Configuration.java:249)

at org.apache.kafka.common.security.kerberos.Login.login(Login.java:291)

at org.apache.kafka.common.security.kerberos.Login.(Login.java:104)

at kafka.common.security.LoginManager$.init(LoginManager.scala:36)

at kafka.producer.Producer.(Producer.scala:50)

at kafka.producer.Producer.(Producer.scala:73)

at kafka.javaapi.producer.Producer.(Producer.scala:26)

at com.ct.test.kafka.TestProducer.main(TestProducer.java:51)

Caused by: java.io.IOException: Configuration Error:

Line 6: expected [controlFlag]

at com.sun.security.auth.login.ConfigFile.match(ConfigFile.java:563)

at com.sun.security.auth.login.ConfigFile.parseLoginEntry(ConfigFile.java:413)

at com.sun.security.auth.login.ConfigFile.readConfig(ConfigFile.java:383)

at com.sun.security.auth.login.ConfigFile.init(ConfigFile.java:283)

at com.sun.security.auth.login.ConfigFile.init(ConfigFile.java:219)

at com.sun.security.auth.login.ConfigFile.(ConfigFile.java:108)

MyUser_Kafka_jass.conf

KafkaClient {

com.sun.security.auth.module.Krb5LoginModule required

doNotPrompt=true

useTicketCache=true

renewTicket=true

principal="ctadmin/[email protected]";

useKeyTab=true

serviceName="kafka"

keyTab="/etc/security/keytabs/ctadmin.keytab"

client=true;

};

Client {

com.sun.security.auth.module.Krb5LoginModule required

useKeyTab=true

keyTab="/etc/security/keytabs/ctadmin.keytab"

storeKey=true

useTicketCache=true

serviceName="zookeeper"

principal="ctadmin/[email protected]";

};

case2 : When I specify Kafkas own jaas file

Java config name: /etc/krb5.conf

Loaded from Java config

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. Make sure -Djava.security.auth.login.config property passed to JVM and the client is configured to use a ticket cache (using the JAAS configuration setting 'useTicketCache=true)'. Make sure you are using FQDN of the Kafka broker you are trying to connect to. not available to garner authentication information from the user

at com.sun.security.auth.module.Krb5LoginModule.promptForPass(Krb5LoginModule.java:899)

at com.sun.security.auth.module.Krb5LoginModule.attemptAuthentication(Krb5LoginModule.java:719)

at com.sun.security.auth.module.Krb5LoginModule.login(Krb5LoginModule.java:584)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.lang.reflect.Method.invoke(Method.java:606)

at javax.security.auth.login.LoginContext.invoke(LoginContext.java:762)

at javax.security.auth.login.LoginContext.access$000(LoginContext.java:203)

at javax.security.auth.login.LoginContext$4.run(LoginContext.java:690)

at javax.security.auth.login.LoginContext$4.run(LoginContext.java:688)

at java.security.AccessController.doPrivileged(Native Method)

at javax.security.auth.login.LoginContext.invokePriv(LoginContext.java:687)

at javax.security.auth.login.LoginContext.login(LoginContext.java:595)

at org.apache.kafka.common.security.kerberos.Login.login(Login.java:298)

at org.apache.kafka.common.security.kerberos.Login.(Login.java:104)

at kafka.common.security.LoginManager$.init(LoginManager.scala:36)

at kafka.producer.Producer.(Producer.scala:50)

at kafka.producer.Producer.(Producer.scala:73)

at kafka.javaapi.producer.Producer.(Producer.scala:26)

at com.ct.test.kafka.TestProducer.main(TestProducer.java:51)

This works fine, if I do kinit before running this app, else it will through above error.

I cant do this in my production environment, if there is any way to do this by our app itself then please help me out.

Please let me know if you need any more details.

Thanks:)

解决方案

I don't know what mistake did first time, below things I did again, and it works fine.

First give all access to topic:

bin/kafka-acls.sh --add --allow-principals user:ctadmin --operation ALL --topic marchTesting --authorizer-properties zookeeper.connect={hostname}:2181

create jass file:

kafka-jaas.conf

KafkaClient {

com.sun.security.auth.module.Krb5LoginModule required

doNotPrompt=true

useTicketCache=true

principal="[email protected]"

useKeyTab=true

serviceName="kafka"

keyTab="/etc/security/keytabs/ctadmin.keytab"

client=true;

};

Java Program:

package com.ct.test.kafka;

import java.util.Date;

import java.util.Properties;

import kafka.javaapi.producer.Producer;

import kafka.producer.KeyedMessage;

import kafka.producer.ProducerConfig;

public class KafkaProducer {

public static void main(String[] args) {

String topic = args[0];

Properties props = new Properties();

props.put("metadata.broker.list", "{Hostname}:6667");

props.put("serializer.class", "kafka.serializer.StringEncoder");

props.put("request.required.acks", "1");

props.put("security.protocol", "PLAINTEXTSASL");

ProducerConfig config = new ProducerConfig(props);

Producer producer = new Producer(config);

for (int i = 0; i < 10; i++){

producer.send(new KeyedMessage(topic, "Test Date: " + new Date()));

}

}

}

Run application:

java -Djava.security.auth.login.config=/home/ctadmin/kafka-jaas.conf -Djava.security.krb5.conf=/etc/krb5.conf -Djavax.security.auth.useSubjectCredsOnly=true -cp kafka-testing-0.0.1-jar-with-dependencies.jar com.ct.test.kafka.KafkaProducer