IBM Websphere中的Java VisualVM JMX连接

Question

我试图使用JVisualVM监视IBM Websphere，但无法连接。错误显示“无法连接到使用Service：jmx：rmi：///jndi/rmi：///jmxrmi”这是WAS中第一次使用IBM JDK。这在我们的旧Solaris服务器上正常工作。

规格和配置。

• IBM Websphere 8.0.0.5
• Red Hat Linux
• Java版本=1.6.0，Java编译器=j9jit26，Java VM名称=IBM J9 VM
• JVM参数:

-djavax.management.builder.initial=-dcom.sun.management.jmxremote.port=19823-dcom.sun.management.jmxremote.ssl=false-dcom.sun.management.jmxremote.authenticate=false-xgcpolicy：gencon-verbose：gc-djava.rmi.server.hostname=

VISUALVM错误。

[com.sun.tools.visualvm.jmx.impl.JmxModelImpl]: connect(service:jmx:rmi:///jndi/rmi://<MYHOST>:19823/jmxrmi)
java.io.EOFException: SSL peer shut down incorrectly
    at sun.security.ssl.InputRecord.read(InputRecord.java:505)
    at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:954)
Caused: javax.net.ssl.SSLHandshakeException: Remote host closed connection during handshake
    at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:973)
    at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1343)
    at sun.security.ssl.SSLSocketImpl.writeRecord(SSLSocketImpl.java:728)
    at sun.security.ssl.AppOutputStream.write(AppOutputStream.java:123)
    at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:82)
    at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:140)
    at java.io.DataOutputStream.flush(DataOutputStream.java:123)
    at sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:229)
Caused: java.rmi.ConnectIOException: error during JRMP connection establishment; nested exception is: 
    javax.net.ssl.SSLHandshakeException: Remote host closed connection during handshake
    at sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:304)
    at sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:202)
    at sun.rmi.server.UnicastRef.newCall(UnicastRef.java:342)
    at sun.rmi.registry.RegistryImpl_Stub.lookup(Unknown Source)
    at com.sun.jndi.rmi.registry.RegistryContext.lookup(RegistryContext.java:118)
Caused: javax.naming.CommunicationException [Root exception is java.rmi.ConnectIOException: error during JRMP connection establishment; nested exception is: 
    javax.net.ssl.SSLHandshakeException: Remote host closed connection during handshake]
    at com.sun.jndi.rmi.registry.RegistryContext.lookup(RegistryContext.java:122)
    at com.sun.jndi.toolkit.url.GenericURLContext.lookup(GenericURLContext.java:205)
    at javax.naming.InitialContext.lookup(InitialContext.java:417)
    at javax.management.remote.rmi.RMIConnector.findRMIServerJNDI(RMIConnector.java:1929)
    at javax.management.remote.rmi.RMIConnector.findRMIServer(RMIConnector.java:1896)
    at javax.management.remote.rmi.RMIConnector.connect(RMIConnector.java:287)
Caused: java.io.IOException: Failed to retrieve RMIServer stub
    at javax.management.remote.rmi.RMIConnector.connect(RMIConnector.java:369)
    at com.sun.tools.visualvm.jmx.impl.JmxModelImpl$ProxyClient.tryConnect(JmxModelImpl.java:512)
[catch] at com.sun.tools.visualvm.jmx.impl.JmxModelImpl$ProxyClient.connect(JmxModelImpl.java:449)
    at com.sun.tools.visualvm.jmx.impl.JmxModelImpl.connect(JmxModelImpl.java:203)
    at com.sun.tools.visualvm.jmx.impl.JmxModelImpl.<init>(JmxModelImpl.java:192)
    at com.sun.tools.visualvm.jmx.impl.JmxModelProvider.createModelFor(JmxModelProvider.java:40)
    at com.sun.tools.visualvm.jmx.impl.JmxModelProvider.createModelFor(JmxModelProvider.java:21)
    at com.sun.tools.visualvm.core.model.ModelFactory.getModel(ModelFactory.java:91)
    at com.sun.tools.visualvm.tools.jmx.JmxModelFactory.getJmxModelFor(JmxModelFactory.java:49)
    at com.sun.tools.visualvm.jmx.impl.JmxApplicationProvider.addJmxApplication(JmxApplicationProvider.java:261)
    at com.sun.tools.visualvm.jmx.impl.JmxApplicationProvider.createJmxApplication(JmxApplicationProvider.java:170)
    at com.sun.tools.visualvm.jmx.JmxApplicationsSupport.createJmxApplicationImpl(JmxApplicationsSupport.java:273)
    at com.sun.tools.visualvm.jmx.JmxApplicationsSupport.createJmxApplicationInteractive(JmxApplicationsSupport.java:250)
    at com.sun.tools.visualvm.jmx.impl.AddJMXConnectionAction$1.run(AddJMXConnectionAction.java:60)
    at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1393)
    at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2005)

检查完成了。

1. 在服务器中公开JMX端口。我看得出来它在听。我甚至可以在笔记本电脑中使用telnet<19823>连接到in。
2. 我在websphere端没有看到任何错误日志。

Answer 1

通过尝试在Linux中禁用iptables解决了这个问题。然后不知何故，操作/支持批准打开一些默认临时端口供RMI使用。

最后的JVM参数如下所示。

-djavax.management.builder.initial=-dcom.sun.management.jmxremote.port=port-dcom.sun.management.jmxremote.rmi.port=port-dcom.sun.management.jmxremote.authenticate=false-dcom.sun.management.jmxremote.ssl=false-djava.rmi.server.hostname=host

谢谢你！