通过连接池将JMS消息发送到JBoss AS中的远程队列

时间:2010-06-24 16:59:09

标签: java jboss jms connection-pooling

我正在尝试从一个JBoss AS 5.1实例向另一个发送JMS消息。对于我的测试,我让它们都运行在localhost,具有正常端口设置的客户端JBoss AS实例和服务器JBoss AS以及所有端口偏移100的设置。

在客户端的EAR项目中,我在我的EAR根目录中的一个名为jmstest-service.xml的文件中定义了一个JMS提供程序加载器,其中包含以下内容:

jmstest-service.xml中:

<mbean code="org.jboss.jms.jndi.JMSProviderLoader" name="jboss.messaging:service=JMSProviderLoader,name=MyJMSProvider">
    <attribute name="ProviderName">MyJMSProvider</attribute>
    <attribute name="ProviderAdapterClass">org.jboss.jms.jndi.JNDIProviderAdapter</attribute>
    <attribute name="FactoryRef">java:/XAConnectionFactory</attribute>
    <attribute name="QueueFactoryRef">java:/XAConnectionFactory</attribute>
    <attribute name="TopicFactoryRef">java:/XAConnectionFactory</attribute>
    <attribute name="Properties">
        java.naming.factory.initial=org.jnp.interfaces.NamingContextFactory
        java.naming.factory.url.pkgs=org.jboss.naming:org.jnp.interfaces
        java.naming.provider.url=jnp://localhost:1199
    </attribute>      
</mbean>

在一个名为jmstest-ds.xml的文件中,我为连接工厂添加了一个定义:

jmstest-ds.xml中:

<tx-connection-factory>
    <jndi-name>MyJmsXA</jndi-name>
    <xa-transaction/>
    <rar-name>jms-ra.rar</rar-name>
    <connection-definition>org.jboss.resource.adapter.jms.JmsConnectionFactory</connection-definition>
    <config-property name="SessionDefaultType" type="java.lang.String">javax.jms.Topic</config-property>
    <config-property name="JmsProviderAdapterJNDI" type="java.lang.String">java:/MyJMSProvider</config-property>
    <max-pool-size>20</max-pool-size>       
    <depends>jboss.messaging:service=ServerPeer</depends>      
</tx-connection-factory>

启动客户端JBoss AS实例时,我看到正在创建连接工厂。所以,我编写了以下代码来发送JMS消息:

InitialContext context = new InitialContext();
QueueConnectionFactory factory = (QueueConnectionFactory)context.lookup("java:/MyJmsXA");
QueueConnection connect = factory.createQueueConnection();

QueueSession session = connect.createQueueSession(false, Session.AUTO_ACKNOWLEDGE);

Destination destination = (Destination)getRemoteContext().lookup("/queue/nsQueue");
MessageProducer sender = session.createProducer(destination);

ObjectMessage  message = session.createObjectMessage("bla");
sender.send(message);
connect.close();

将getRemoteContext()定义为:

InitialContext getRemoteContext() {
    Properties env = new Properties();
    env.put(Context.INITIAL_CONTEXT_FACTORY, "org.jnp.interfaces.NamingContextFactory" );
    env.put(Context.URL_PKG_PREFIXES, "org.jboss.naming:org.jnp.interfaces");
    env.put(Context.PROVIDER_URL, "jnp://localhost:1199");
    return new InitialContext(env);
}

直到这里它基本上都有效。我从JNDI获取了关于连接池和远程队列的引用。但是,当我实际尝试发送消息时,它失败并出现异常:

ERROR [ExceptionUtil] SessionEndpoint[pa-96fhptag-1-8wtzotag-7jdzy7-110j3] send [sa-mdkvptag-1-8wtzotag-7jdzy7-110j3]
javax.jms.JMSException: Failed to route Reference[20928781172555777]:RELIABLE to nsQueue
 at org.jboss.jms.server.endpoint.ServerConnectionEndpoint.sendMessage(ServerConnectionEndpoint.java:757)
 at org.jboss.jms.server.endpoint.ServerSessionEndpoint.send(ServerSessionEndpoint.java:399)
 at org.jboss.jms.server.endpoint.advised.SessionAdvised.org$jboss$jms$server$endpoint$advised$SessionAdvised$send$aop(SessionAdvised.java:87)
 at org.jboss.jms.server.endpoint.advised.SessionAdvised$send_7280680627620114891.invokeTarget(SessionAdvised$send_7280680627620114891.java)
 at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:111)
 at org.jboss.jms.server.container.SecurityAspect.handleSend(SecurityAspect.java:157)
 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
 at java.lang.reflect.Method.invoke(Method.java:597)
 at org.jboss.aop.advice.PerInstanceAdvice.invoke(PerInstanceAdvice.java:122)
 at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
 at org.jboss.jms.server.endpoint.advised.SessionAdvised.send(SessionAdvised.java)
 at org.jboss.jms.wireformat.SessionSendRequest.serverInvoke(SessionSendRequest.java:95)
 at org.jboss.jms.server.remoting.JMSServerInvocationHandler.invoke(JMSServerInvocationHandler.java:143)
 at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:891)
 at org.jboss.remoting.transport.local.LocalClientInvoker.invoke(LocalClientInvoker.java:106)
 at org.jboss.remoting.Client.invoke(Client.java:1724)
 at org.jboss.remoting.Client.invoke(Client.java:629)
 at org.jboss.remoting.Client.invoke(Client.java:617)
 at org.jboss.jms.client.delegate.DelegateSupport.doInvoke(DelegateSupport.java:189)
 at org.jboss.jms.client.delegate.DelegateSupport.doInvoke(DelegateSupport.java:160)
 at org.jboss.jms.client.delegate.ClientSessionDelegate.org$jboss$jms$client$delegate$ClientSessionDelegate$send$aop(ClientSessionDelegate.java:499)
 at org.jboss.jms.client.delegate.ClientSessionDelegate$send_6145266547759487588.invokeTarget(ClientSessionDelegate$send_6145266547759487588.java)
 at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:111)
 at org.jboss.jms.client.container.SessionAspect.handleSend(SessionAspect.java:661)
 at org.jboss.aop.advice.org.jboss.jms.client.container.SessionAspect_z_handleSend_1677669648.invoke(SessionAspect_z_handleSend_1677669648.java)
 at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
 at org.jboss.jms.client.container.FailoverValveInterceptor.invoke(FailoverValveInterceptor.java:92)
 at org.jboss.aop.advice.PerInstanceInterceptor.invoke(PerInstanceInterceptor.java:86)
 at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
 at org.jboss.jms.client.container.ClosedInterceptor.invoke(ClosedInterceptor.java:170)
 at org.jboss.aop.advice.PerInstanceInterceptor.invoke(PerInstanceInterceptor.java:86)
 at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
 at org.jboss.jms.client.delegate.ClientSessionDelegate.send(ClientSessionDelegate.java)
 at org.jboss.jms.client.container.ProducerAspect.handleSend(ProducerAspect.java:269)
 at org.jboss.aop.advice.org.jboss.jms.client.container.ProducerAspect_z_handleSend_1677669648.invoke(ProducerAspect_z_handleSend_1677669648.java)
 at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
 at org.jboss.jms.client.container.ClosedInterceptor.invoke(ClosedInterceptor.java:170)
 at org.jboss.aop.advice.PerInstanceInterceptor.invoke(PerInstanceInterceptor.java:86)
 at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
 at org.jboss.jms.client.delegate.ClientProducerDelegate.send(ClientProducerDelegate.java)
 at org.jboss.jms.client.JBossMessageProducer.send(JBossMessageProducer.java:164)
 at org.jboss.jms.client.JBossMessageProducer.send(JBossMessageProducer.java:207)
 at org.jboss.jms.client.JBossMessageProducer.send(JBossMessageProducer.java:145)
 at org.jboss.jms.client.JBossMessageProducer.send(JBossMessageProducer.java:136)
 at org.jboss.resource.adapter.jms.JmsMessageProducer.send(JmsMessageProducer.java:142)

此时我不仅有点卡住了:(

我试图稍微调试JMS,它似乎失败的地方是org.jboss.messaging.core.impl.postoffice.MessagingPostOffice#routeInternal。此方法接收我的队列名称(nsQueue),但某些内部结构不包含对该队列的任何引用:

private boolean routeInternal(MessageReference ref, Condition condition, Transaction tx, boolean fromCluster, Set names) throws Exception {
if (trace) { log.trace(this + " routing " + ref + " with condition '" +
                   condition + "'" + (tx == null ? "" : " transactionally in " + tx) + 
                   " from cluster " + fromCluster); }

  boolean routed = false;

  lock.readLock().acquire();

  try
  {
     List queues = (List)mappings.get(condition);

     if (queues != null) // THIS IS INDEED NULL

routeInternal方法因此返回false并抛出上述异常。

如果我从远程服务器请求(默认)连接工厂,那么一切正常。服务器正确发送并正确接收JMS消息。但是,出于性能原因,必须使用本地连接池。

那么,有没有人知道这里出了什么问题,或者知道将连接池用于远程JMS队列的替代方法?

1 个答案:

答案 0 :(得分:4)

问题是你在提供者加载器的定义中使用了java:/ XAConnectionFactory。即使这个名称将被赋予远程JNDI初始上下文,它仍将转到你的LOCAL JNDI,而不是远程JNDI反对你认为它将被解决。这只是JNDI的一个奇怪现象。

由于您的本地邮局正在尝试查找队列(“nsQueue”),您得到了该异常,而且它显然不知道这一点。正在询问您当地的邮局,因为代码正在使用本地连接工厂,即使您认为它正在使用远程邮局。

只需更改对/ XAConnectionFactory的引用即可。