2

I am trying to deploy two wars in a single tomcat server instance. but it is throwing errors. can anyone please help in this. PFB the error log.

19:39:28,294 ERROR pool-2-thread-1 context.ContextLoader:220 - Context initialization failed org.springframework.context.ApplicationContextException: Failed to start bean 'batchMBeanExporter'; nested exception is org.springframework.jmx.export.UnableToRegisterMBeanException: Unable to register MBean [org.springframework.batch.admin.jmx.SimpleJobExecutionMetrics@1f069c] with key 'spring.application:type=JobExecution,name=DATSFileFeeds'; nested exception is javax.management.InstanceAlreadyExistsException: spring.application:type=JobExecution,name=DATSFileFeeds at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:169) at org.springframework.context.support.DefaultLifecycleProcessor.access$1(DefaultLifecycleProcessor.java:154) at org.springframework.context.support.DefaultLifecycleProcessor$LifecycleGroup.start(DefaultLifecycleProcessor.java:335) at org.springframework.context.support.DefaultLifecycleProcessor.startBeans(DefaultLifecycleProcessor.java:143) at org.springframework.context.support.DefaultLifecycleProcessor.onRefresh(DefaultLifecycleProcessor.java:108) at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:908) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:428) at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:276) at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:197) at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:47) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4779) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5273) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:897) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:873) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:615) at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:958) at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1599) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) at java.util.concurrent.FutureTask.run(FutureTask.java:262) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:744) Caused by: org.springframework.jmx.export.UnableToRegisterMBeanException: Unable to register MBean [org.springframework.batch.admin.jmx.SimpleJobExecutionMetrics@1f069c] with key 'spring.application:type=JobExecution,name=DATSFileFeeds'; nested exception is javax.management.InstanceAlreadyExistsException: spring.application:type=JobExecution,name=DATSFileFeeds at org.springframework.jmx.export.MBeanExporter.registerBeanNameOrInstance(MBeanExporter.java:602) at org.springframework.batch.admin.jmx.BatchMBeanExporter.registerJobs(BatchMBeanExporter.java:190) at org.springframework.batch.admin.jmx.BatchMBeanExporter.doStart(BatchMBeanExporter.java:353) at org.springframework.batch.admin.jmx.BatchMBeanExporter.start(BatchMBeanExporter.java:307) at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:166) ... 22 more Caused by: javax.management.InstanceAlreadyExistsException: spring.application:type=JobExecution,name=DATSFileFeeds at com.sun.jmx.mbeanserver.Repository.addMBean(Repository.java:437) at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerWithRepository(DefaultMBeanServerInterceptor.java:1898) at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerDynamicMBean(DefaultMBeanServerInterceptor.java:966) at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerObject(DefaultMBeanServerInterceptor.java:900) at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerMBean(DefaultMBeanServerInterceptor.java:324) at com.sun.jmx.mbeanserver.JmxMBeanServer.registerMBean(JmxMBeanServer.java:522) at org.springframework.jmx.support.MBeanRegistrationSupport.doRegister(MBeanRegistrationSupport.java:169) at org.springframework.jmx.export.MBeanExporter.registerBeanInstance(MBeanExporter.java:655) at org.springframework.jmx.export.MBeanExporter.registerBeanNameOrInstance(MBeanExporter.java:598) ... 26 more

Rafeeq Ali Shaik
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  • i also tried this http://stackoverflow.com/questions/24613538/deploying-two-spring-batch-applications-in-same-cluster-in-a-single-weblogic-dom – Rafeeq Ali Shaik Oct 15 '15 at 14:33
  • After searching far and wide I found a solution for my version of this problem with https://stackoverflow.com/questions/28295503/migration-to-tomcat-8-instancealreadyexistsexception-datasource and wanted to point any wayward, lost soul in that direction. – Kosi Nov 26 '19 at 21:25

2 Answers2

5

You can configure the behavior for MBean registration using MBeanRegistrationSupport#setRegistrationPolicy method.

Currently there are three policies:

  1. FAIL_ON_EXISTING - Registration should fail when attempting to register an MBean under a name that already exists.
  2. IGNORE_EXISTING - Registration should ignore the affected MBean when attempting to register an MBean under a name that already exists.
  3. REPLACE_EXISTING - Registration should replace the affected MBean when attempting to register an MBean under a name that already exists.

For example:

@Bean
public AnnotationMBeanExporter annotationMBeanExporter() {
    AnnotationMBeanExporter annotationMBeanExporter = new AnnotationMBeanExporter();
    annotationMBeanExporter.setRegistrationPolicy(RegistrationPolicy.IGNORE_EXISTING);

    return annotationMBeanExporter;
}
Kosi
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kara
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0

You can register the MBean conditionally:

//Get the MBean server
MBeanServer mbs = ManagementFactory.getPlatformMBeanServer();
//register the MBean
number = new NumberOfSomething();
ObjectName name = new ObjectName("ru.pochta.abon.mbean:type=NumberOfSomething");
if (!mbs.isRegistered(name)) {
    mbs.registerMBean(number, name);
}
dimirsen Z
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