配置：Redhat 5.3，Sun Java 1.6.31，ActiveMQ 5.4.2
每次停止activemq（$＆gt; service activemq stop）时我都会收到例外
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
这个过程仍然会死，但不会优雅。有什么建议吗？
答案 0 :(得分：24)
我找到了修复程序，但我不确定它是否解决了根本问题。一旦ActiveMQ启动，我使用以下命令检查端口1099是否实际打开：
$> netstat -lptun | grep 1099
此命令不打印任何显示端口未打开（ActiveMQ已启动）的内容。这意味着即使ActiveMQ已经启动，它也不会监听任何JMX连接（这是脚本试图阻止它的方式）。经过一番环顾，我发现这个link导致我进入 {ACTIVEMQ_HOME} /conf/activemq.xml 文件。在此文件中有以下部分：
<!--
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>
设置 createConnector =“true”解决了我的问题（这将在ActiveMQ启动时启动JVM中的MBean服务器）。关闭输出现在看起来像这样（如预期的那样）：
...
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
此外，更改此标志后，我可以验证启动ActiveMQ后默认的JMX端口（1099）是否已打开
$> netstat -lptun | grep 1099
tcp 0 0 :::1099 :::* LISTEN 30033/java