的ActiveMQ停止

Question

配置時例外：紅帽5.3的Sun Java 31年6月1日，ActiveMQ的5.4.2

每次我停止ActiveMQ的我發現了一個異常（$>服務的ActiveMQ停止）

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 

該過程仍然死亡，但不是優雅。有什麼建議麼？

Answer 1

我發現了一個修復程序，但我不確定它是否解決了根本問題。一旦ActiveMQ的開始我檢查，看看是否端口1099實際上是開放使用以下命令：

$> netstat -lptun | grep 1099 

此命令打印沒有表明該端口未打開（和ActiveMQ啓動）。這意味着即使ActiveMQ已經啓動，它也不會偵聽任何JMX連接（腳本將如何嘗試阻止它）。經過一番四處張望，我發現這個link，導致我到{ACTIVEMQ_HOME} /conf/activemq.xml文件。在這個文件中，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> 

設置createConnector =「真」解決了我的問題（這將啓動JVM中的MBean服務器的ActiveMQ啓動時）。關機輸出現在看起來像這樣（如預期）：

... 
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，變更這個標記後，我可以驗證默認的JMX端口（1099）開始的ActiveMQ

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

後開放