我们有一个部署到Tomcat(6.0.35)的Spring MVC Web应用程序(WAR),它在部署时启动一个单独的JVM内的线程(不要问为什么 - 而不是我的设计)然后通过RMI通过端口8888Spring/RMI服务器错误
线程通信,尽管被完全convoluded,这是工作完全正常,直到昨天,现在的线程在启动时,尽管添加登录到混音我们最大的努力失败了,我们正在撞墙。这是唯一的例外,我们可以在日志中找到:
Jun 12, 2012 3:11:36 AM com.ourapp.ImageController destroy
SEVERE: Shutdown Error: Lookup of RMI stub failed; nested exception is java.rmi.ConnectException: Connection refused to host: localhost; nested exception is:
java.net.ConnectException: Connection refused
Jun 12, 2012 3:11:37 AM org.apache.catalina.core.StandardContext listenerStop
SEVERE: Exception sending context destroyed event to listener instance of class org.springframework.web.context.ContextLoaderListener
java.lang.NoClassDefFoundError: org/springframework/web/context/ContextCleanupListener
at org.springframework.web.context.ContextLoaderListener.contextDestroyed(ContextLoaderListener.java:80)
at org.apache.catalina.core.StandardContext.listenerStop(StandardContext.java:3973)
at org.apache.catalina.core.StandardContext.stop(StandardContext.java:4577)
at org.apache.catalina.startup.HostConfig.checkResources(HostConfig.java:1165)
at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1271)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:296)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1337)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1601)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1610)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1590)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.ClassNotFoundException: org.springframework.web.context.ContextCleanupListener
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1387)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1233)
... 12 more
的ImageController
是Spring MVC Controller
,负责踢了这个守护进程/催生RMI线程。基于这个错误的verbage,有没有人有任何想法什么可能会导致这种“连接被拒绝”的错误?
运行netstat -an | grep 8888
(这是一台Linux机器)不产生任何输出,这意味着在该端口上没有任何监听。预先感谢任何想法或建议,导致修复。
编辑:这是另一个ConnectionException
我们看到:
Caused by: java.net.ConnectException: Connection refused
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:351)
at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:213)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:200)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
at java.net.Socket.connect(Socket.java:529)
at java.net.Socket.connect(Socket.java:478)
at java.net.Socket.<init>(Socket.java:375)
at java.net.Socket.<init>(Socket.java:189)
at sun.rmi.transport.proxy.RMIDirectSocketFactory.createSocket(RMIDirectSocketFactory.java:22)
at sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(RMIMasterSocketFactory.java:128)
at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:595)
... 74 more
您确定您尝试连接的端口没有被封锁或关闭吗? –
这些日志似乎来自Web应用程序JVM,它基本上抱怨说它无法通过RMI连接。你需要调查其他服务的日志,以及为什么它没有启动/不在8888上监听。 – maksimov
@indyaah - 我对linux不太熟悉 - 我可以使用哪些命令来判断端口8888是否被阻止/关闭? – IAmYourFaja