部署环境：Weblogic 10 MP2 for UNIX
实验：
Weblogic Cluster: (MServer1,MServer2) 7222
Multicast IP: 239.192.0.0
AdminServer: 192.168.1.33:7001
MServer1: 192.168.1.33:7201
MServer2: 192.168.1.33:7202
Machine1: (MServer1) NodeManager(192.168.1.33:5556)
Machine2: (MServer2) NodeManager(192.168.1.33:5557)
注意：本实验环境各个Server SSL设置---->Hostname Verification: NONE 
描述：
（NodeManager 成功启动）
当启动某ManagedServer时分别报以下错误：
/home/weblogic/bea/user_projects/domains/clustersys/servers/MServer_1/logs/MServer_1.out
Dec 16, 2010 9:12:56 PM CST>  
 
 
 
 
 
 

 
No such device.java.net.SocketException: 
No such device 
at java.net.PlainDatagramSocketImpl.join(Native Method)
at java.net.PlainDatagramSocketImpl.join(PlainDatagramSocketImpl.java:172)
at java.net.MulticastSocket.joinGroup(MulticastSocket.java:276)
at weblogic.cluster.MulticastFragmentSocket.initializeMulticastSocket(MulticastFragmentSocket.java:112)
at weblogic.cluster.MulticastFragmentSocket.start(MulticastFragmentSocket.java:134)
Truncated. see log file for complete stacktrace
> 
 
java.net.SocketException: No such device
at java.net.PlainDatagramSocketImpl.join(Native Method)
at java.net.PlainDatagramSocketImpl.join(PlainDatagramSocketImpl.java:172)
at java.net.MulticastSocket.joinGroup(MulticastSocket.java:276)
at weblogic.cluster.MulticastFragmentSocket.initializeMulticastSocket(MulticastFragmentSocket.java:112)
at weblogic.cluster.MulticastFragmentSocket.start(MulticastFragmentSocket.java:134)
at weblogic.cluster.FragmentSocketWrapper.start(FragmentSocketWrapper.java:87)
at weblogic.cluster.MulticastManager$1.run(MulticastManager.java:186)
at weblogic.cluster.MulticastManager.startListening(MulticastManager.java:192)
at weblogic.cluster.InboundService.startListening(InboundService.java:40)
at weblogic.cluster.InboundService.start(InboundService.java:29)
at weblogic.t3.srvr.SubsystemRequest.run(SubsystemRequest.java:64)
at weblogic.work.SelfTuningWorkManagerImpl$WorkAdapterImpl.run(SelfTuningWorkManagerImpl.java:464)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:200)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:172)
>
 
 
 
 
 


 
 
AdminServer 前台报以下信息： 
Exception while starting server 'MServer_1': java.io.IOException: Server failed to start up.
See server output log for more details.> 
分析:依据以下提示，可判断组播地址问题。 
Dec 16, 2010 9:13:34 PM CST> at address 239.192.0.0 due to: java.net.SocketException: No such device. 
查看系统路由表: 
[root@localhost ~]# route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth0 
缺一条组播239.192.0.0路由
手动添加路由: 
[root@localhost ~]# route add -host 239.192.0.0 dev eth0
[root@localhost ~]# route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
239.192.0.0 0.0.0.0 255.255.255.255 UH 0 0 0 eth0
192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth0 
再启动受控服务器，OK

同样的原因也会导致以下异常抛出： 
注意：1. 本实验环境各个Server SSL设置---->Hostname Verification:: BEA HOSTNAME Verifier
2. Weblogic 11gr3(10.3) 不适合此环境
基于SSL环境下 ，成功启动节点管理器后，受控服务器无法正常启动
现象：
当启动MServer_1时，服务器状态：
MServer_1   Machine_1   FAILED_NOT_RESTARTABLE    FAILED 
NodeManager 报错：
Dec 16, 2010 11:23:54 PM>









java.io.IOException: Server failed to start up. See server output log for more details.
        at weblogic.nodemanager.server.ServerManager.start(ServerManager.java:303)
        at weblogic.nodemanager.server.Handler.handleStart(Handler.java:542)
        at weblogic.nodemanager.server.Handler.handleCommand(Handler.java:119)
        at weblogic.nodemanager.server.Handler.run(Handler.java:66)
        at java.lang.Thread.run(Thread.java:595)
 
控制台：
   : Exception while starting server 'MServer_1': java.io.IOException: Server failed to start up. See server output log for more details.> 
查看日志，分析原因：
/home/weblogic/bea/user_projects/domains/clustersys/servers/MServer_1/logs/MServer_1.out
 
 


    

java.net.SocketException: No such device
        at java.net.PlainDatagramSocketImpl.join(Native Method)
        at java.net.PlainDatagramSocketImpl.join(PlainDatagramSocketImpl.java:172)
        at java.net.MulticastSocket.joinGroup(MulticastSocket.java:276)
        at weblogic.cluster.MulticastFragmentSocket.initializeMulticastSocket(MulticastFragmentSocket.java:112)
        at weblogic.cluster.MulticastFragmentSocket.start(MulticastFragmentSocket.java:134)
        Truncated. see log file for complete stacktrace
> 
 
java.net.SocketException: No such device
        at java.net.PlainDatagramSocketImpl.join(Native Method)
        at java.net.PlainDatagramSocketImpl.join(PlainDatagramSocketImpl.java:172)
        at java.net.MulticastSocket.joinGroup(MulticastSocket.java:276)
        at weblogic.cluster.MulticastFragmentSocket.initializeMulticastSocket(MulticastFragmentSocket.java:112)
        at weblogic.cluster.MulticastFragmentSocket.start(MulticastFragmentSocket.java:134)
        at weblogic.cluster.FragmentSocketWrapper.start(FragmentSocketWrapper.java:87)
        at weblogic.cluster.MulticastManager$1.run(MulticastManager.java:186)
        at weblogic.cluster.MulticastManager.startListening(MulticastManager.java:192)
        at weblogic.cluster.InboundService.startListening(InboundService.java:40)
        at weblogic.cluster.InboundService.start(InboundService.java:29)
        at weblogic.t3.srvr.SubsystemRequest.run(SubsystemRequest.java:64)
        at weblogic.work.SelfTuningWorkManagerImpl$WorkAdapterImpl.run(SelfTuningWorkManagerImpl.java:464)
        at weblogic.work.ExecuteThread.execute(ExecuteThread.java:200)
        at weblogic.work.ExecuteThread.run(ExecuteThread.java:172)
> 
 
 
 


 
解决方法同上，手动添加组播路由