ActiveMQ excepción cuando se detiene

Question

Configuración: Redhat 5.3, Sun Java 1.6.31, ActiveMQ 5.4.2

Estoy recibiendo una excepción cada vez que me paro activemq ($> servicio de la parada activemq)

ACTIVEMQ_HOME: /opt/apache/apache-activemq-5.4.2 
ACTIVEMQ_BASE: /opt/apache/apache-activemq-5.4.2 
Connecting to JMX URL: service:jmx:rmi:///jndi/rmi://localhost:1099/jmxrmi 
ERROR: java.lang.RuntimeException: Failed to execute stop task. Reason: java.io.IOException: Failed to retrieve RMIServer stub: javax.naming.ServiceUnavailableException [Root exception is java.rmi.ConnectException: Connection refused to host: localhost; nested exception is: 
    java.net.ConnectException: Connection refused] 
java.lang.RuntimeException: Failed to execute stop task. Reason: java.io.IOException: Failed to retrieve RMIServer stub: javax.naming.ServiceUnavailableException [Root exception is java.rmi.ConnectException: Connection refused to host: localhost; nested exception is: 
    java.net.ConnectException: Connection refused] 
    at org.apache.activemq.console.command.ShutdownCommand.runTask(ShutdownCommand.java:107) 
    at org.apache.activemq.console.command.AbstractCommand.execute(AbstractCommand.java:57) 
    at org.apache.activemq.console.command.AbstractJmxCommand.execute(AbstractJmxCommand.java:316) 
    at org.apache.activemq.console.command.ShellCommand.runTask(ShellCommand.java:143) 
    at org.apache.activemq.console.command.AbstractCommand.execute(AbstractCommand.java:57) 
    at org.apache.activemq.console.command.ShellCommand.main(ShellCommand.java:85) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) 
    at java.lang.reflect.Method.invoke(Unknown Source) 
    at org.apache.activemq.console.Main.runTaskClass(Main.java:251) 
    at org.apache.activemq.console.Main.main(Main.java:107) 
ERROR: java.lang.Exception: java.io.IOException: Failed to retrieve RMIServer stub: javax.naming.ServiceUnavailableException [Root exception is java.rmi.ConnectException: Connection refused to host: localhost; nested exception is: 
    java.net.ConnectException: Connection refused] 
java.lang.Exception: java.io.IOException: Failed to retrieve RMIServer stub: javax.naming.ServiceUnavailableException [Root exception is java.rmi.ConnectException: Connection refused to host: localhost; nested exception is: 
    java.net.ConnectException: Connection refused] 
    at org.apache.activemq.console.command.ShutdownCommand.runTask(ShutdownCommand.java:108) 
    at org.apache.activemq.console.command.AbstractCommand.execute(AbstractCommand.java:57) 
    at org.apache.activemq.console.command.AbstractJmxCommand.execute(AbstractJmxCommand.java:316) 
    at org.apache.activemq.console.command.ShellCommand.runTask(ShellCommand.java:143) 
    at org.apache.activemq.console.command.AbstractCommand.execute(AbstractCommand.java:57) 
    at org.apache.activemq.console.command.ShellCommand.main(ShellCommand.java:85) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) 
    at java.lang.reflect.Method.invoke(Unknown Source) 
    at org.apache.activemq.console.Main.runTaskClass(Main.java:251) 
    at org.apache.activemq.console.Main.main(Main.java:107) 
Caused by: java.io.IOException: Failed to retrieve RMIServer stub: javax.naming.ServiceUnavailableException [Root exception is java.rmi.ConnectException: Connection refused to host: localhost; nested exception is: 
    java.net.ConnectException: Connection refused] 
    at javax.management.remote.rmi.RMIConnector.connect(Unknown Source) 
    at javax.management.remote.JMXConnectorFactory.connect(Unknown Source) 
    at javax.management.remote.JMXConnectorFactory.connect(Unknown Source) 
    at org.apache.activemq.console.command.AbstractJmxCommand.createJmxConnector(AbstractJmxCommand.java:214) 
    at org.apache.activemq.console.command.AbstractJmxCommand.createJmxConnection(AbstractJmxCommand.java:237) 
    at org.apache.activemq.console.command.ShutdownCommand.runTask(ShutdownCommand.java:71) 
    ... 11 more 
Caused by: javax.naming.ServiceUnavailableException [Root exception is java.rmi.ConnectException: Connection refused to host: localhost; nested exception is: 
    java.net.ConnectException: Connection refused] 
    at com.sun.jndi.rmi.registry.RegistryContext.lookup(Unknown Source) 
    at com.sun.jndi.toolkit.url.GenericURLContext.lookup(Unknown Source) 
    at javax.naming.InitialContext.lookup(Unknown Source) 
    at javax.management.remote.rmi.RMIConnector.findRMIServerJNDI(Unknown Source) 
    at javax.management.remote.rmi.RMIConnector.findRMIServer(Unknown Source) 
    ... 17 more 
Caused by: java.rmi.ConnectException: Connection refused to host: localhost; nested exception is: 
    java.net.ConnectException: Connection refused 
    at sun.rmi.transport.tcp.TCPEndpoint.newSocket(Unknown Source) 
    at sun.rmi.transport.tcp.TCPChannel.createConnection(Unknown Source) 
    at sun.rmi.transport.tcp.TCPChannel.newConnection(Unknown Source) 
    at sun.rmi.server.UnicastRef.newCall(Unknown Source) 
    at sun.rmi.registry.RegistryImpl_Stub.lookup(Unknown Source) 
    ... 22 more 
Caused by: java.net.ConnectException: Connection refused 
    at java.net.PlainSocketImpl.socketConnect(Native Method) 
    at java.net.PlainSocketImpl.doConnect(Unknown Source) 
    at java.net.PlainSocketImpl.connectToAddress(Unknown Source) 
    at java.net.PlainSocketImpl.connect(Unknown Source) 
    at java.net.SocksSocketImpl.connect(Unknown Source) 
    at java.net.Socket.connect(Unknown Source) 
    at java.net.Socket.connect(Unknown Source) 
    at java.net.Socket.<init>(Unknown Source) 
    at java.net.Socket.<init>(Unknown Source) 
    at sun.rmi.transport.proxy.RMIDirectSocketFactory.createSocket(Unknown Source) 
    at sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(Unknown Source) 
    ... 27 more 

El proceso aún muere pero no con gracia. ¿Alguna sugerencia?

Answer 1

He encontrado una solución, pero no estoy seguro de que resuelva el problema de raíz. Una vez que ha comenzado ActiveMQ he comprobado para ver si el puerto 1099 es realmente abierta con el siguiente comando:

$> netstat -lptun | grep 1099 

Este comando imprime nada que demuestre que el puerto no está abierto (con ActiveMQ comenzó). Esto significa que aunque ActiveMQ ha comenzado, no está escuchando ninguna conexión JMX (que es como la secuencia de comandos intentará detenerla). Después de mirar alrededor encontré este link que me llevó al archivo {ACTIVEMQ_HOME} /conf/activemq.xml. En este archivo se encuentra la sección siguiente:

<!-- 
    The managementContext is used to configure how ActiveMQ is exposed in 
    JMX. By default, ActiveMQ uses the MBean server that is started by 
    the JVM. For more information, see: 

     http://activemq.apache.org/jmx.html 
--> 
<managementContext> 
    <managementContext createConnector="false"/> 
</managementContext> 

Configuración createConnector = "true" resuelto mis problemas (esto va a iniciar el servidor MBean dentro de la JVM cuando se inicia ActiveMQ). La salida de parada ahora se ve así (como se esperaba):

... 
ACTIVEMQ_HOME: /opt/apache/apache-activemq-5.4.2 
ACTIVEMQ_BASE: /opt/apache/apache-activemq-5.4.2 
Connecting to JMX URL: service:jmx:rmi:///jndi/rmi://localhost:1099/jmxrmi 
Stopping broker: localhost 
.. FINISHED 

Además, después de cambiar este indicador pueda verificar que el puerto JMX predeterminado (1099) está abierto después de comenzar ActiveMQ

$> netstat -lptun | grep 1099 
tcp  0  0 :::1099      :::*      LISTEN  30033/java