问题
When I deploy war of my simple kafka project (which works fine as a jar ) in wildfly v 10 , i get some zookeeper connection exception[1].This occurs when kafka listener starts to connect with zookeeper
[1]]
15:21:58,531 ERROR [org.jboss.msc.service.fail] (ServerService Thread Pool -- 82) MSC000001: Failed to start service jboss.deployment.unit."ratha.war".component.KafkaServiceBean.START: org.jboss.msc.service.StartException in service jboss.deployment.unit."ratha.war".component.KafkaServiceBean.START: java.lang.IllegalStateException: WFLYEE0042: Failed to construct component instance
at org.jboss.as.ee.component.ComponentStartService$1.run(ComponentStartService.java:57)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
at org.jboss.threads.JBossThread.run(JBossThread.java:320)
Caused by: java.lang.IllegalStateException: WFLYEE0042: Failed to construct component instance
at org.jboss.as.ee.component.BasicComponent.constructComponentInstance(BasicComponent.java:163)
at org.jboss.as.ee.component.BasicComponent.constructComponentInstance(BasicComponent.java:134)
at org.jboss.as.ee.component.BasicComponent.createInstance(BasicComponent.java:88)
at org.jboss.as.ejb3.component.singleton.SingletonComponent.getComponentInstance(SingletonComponent.java:124)
at org.jboss.as.ejb3.component.singleton.SingletonComponent.start(SingletonComponent.java:138)
at org.jboss.as.ee.component.ComponentStartService$1.run(ComponentStartService.java:54)
... 6 more
Caused by: javax.ejb.EJBException: org.apache.kafka.common.KafkaException: File jar:file:/Users/ratha/projects/wildfly-10.0.0.Final/modules/system/layers/base/org/picketbox/main/picketbox-4.9.4.Final.jar!/auth.confcannot be read.
at org.jboss.as.ejb3.tx.CMTTxInterceptor.handleExceptionInOurTx(CMTTxInterceptor.java:187)
at org.jboss.as.ejb3.tx.CMTTxInterceptor.invokeInOurTx(CMTTxInterceptor.java:277)
at org.jboss.as.ejb3.tx.CMTTxInterceptor.requiresNew(CMTTxInterceptor.java:349)
at org.jboss.as.ejb3.tx.LifecycleCMTTxInterceptor.processInvocation(LifecycleCMTTxInterceptor.java:66)
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340)
at org.jboss.as.weld.injection.WeldInjectionContextInterceptor.processInvocation(WeldInjectionContextInterceptor.java:43)
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340)
at org.jboss.as.ejb3.component.interceptors.CurrentInvocationContextInterceptor.processInvocation(CurrentInvocationContextInterceptor.java:41)
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340)
at org.jboss.as.ee.concurrent.ConcurrentContextInterceptor.processInvocation(ConcurrentContextInterceptor.java:45)
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340)
at org.jboss.invocation.ContextClassLoaderInterceptor.processInvocation(ContextClassLoaderInterceptor.java:64)
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340)
at org.jboss.invocation.InterceptorContext.run(InterceptorContext.java:356)
at org.jboss.invocation.PrivilegedWithCombinerInterceptor.processInvocation(PrivilegedWithCombinerInterceptor.java:80)
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340)
at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61)
at org.jboss.as.ee.component.BasicComponent.constructComponentInstance(BasicComponent.java:161)
... 11 more
Caused by: org.apache.kafka.common.KafkaException: File jar:file:/Users/ratha/projects/wildfly-10.0.0.Final/modules/system/layers/base/org/picketbox/main/picketbox-4.9.4.Final.jar!/auth.confcannot be read.
at org.apache.kafka.common.security.JaasUtils.isZkSecurityEnabled(JaasUtils.java:95)
at kafka.consumer.ZookeeperConsumerConnector.connectZk(ZookeeperConsumerConnector.scala:184)
at kafka.consumer.ZookeeperConsumerConnector.<init>(ZookeeperConsumerConnector.scala:129)
at kafka.javaapi.consumer.ZookeeperConsumerConnector.<init>(ZookeeperConsumerConnector.scala:66)
at kafka.javaapi.consumer.ZookeeperConsumerConnector.<init>(ZookeeperConsumerConnector.scala:69)
at kafka.consumer.Consumer$.createJavaConsumerConnector(ConsumerConnector.scala:120)
at kafka.consumer.Consumer.createJavaConsumerConnector(ConsumerConnector.scala)
回答1:
The error is caused by the following code in Kafka
String loginConfigFile = System.getProperty(JAVA_LOGIN_CONFIG_PARAM);
if (loginConfigFile != null && loginConfigFile.length() > 0) {
File configFile = new File(loginConfigFile);
if (!configFile.canRead()) {
throw new KafkaException("File " + loginConfigFile + "cannot be read.");
}
...
At Wildfly 10, the properties of JAVAX_LOGIN_CONFIG PARAM (java.security.auth.login.config) is set to jar:file:/opt/jboss/wildfly/modules/system/layers/base/org/picketbox/main/picketbox-4.9.4.Final.jar!/auth.conf.
At Wildfly 9, the above property is null. Thus, the quick workaround is to mimic Wildfly 9 by setting that property to null.
To do that, modify your standalone.conf with -Djava.security.auth.login.config= option, ie. empty value. My standalone.conf will look like this:
if [ "x$JAVA_OPTS" = "x" ]; then
JAVA_OPTS="-Xms2048m -Xmx2048m -XX:MetaspaceSize=96M -XX:MaxMetaspaceSize=256m -Djava.net.preferIPv4Stack=true"
JAVA_OPTS="$JAVA_OPTS -Djboss.modules.system.pkgs=$JBOSS_MODULES_SYSTEM_PKGS -Djava.awt.headless=true -Djava.security.auth.login.config="
else
echo "JAVA_OPTS already set in environment; overriding default settings with values: $JAVA_OPTS"
fi
来源：https://stackoverflow.com/questions/36761018/jboss-gives-org-apache-kafka-common-kafkaexception-auth-conf-cannot-be-read