Hi all, well Im back from Australia and one of the things which happened was Oracle announced the PS3 release of oracles SOA & Webcenter products have been released. Now I normally use pre-installed images but I always like to install the products at least once that way I get to see its installation caveats..

Here’s one.

Installation on Windows 7 64bit, 64bit JVM, generic weblogic Server installer.

All worked fine, EXCEPT I cant start the node manager, I get the following error

<08-Feb-2011 17:16:48> <INFO> <Loading domains file: D:\products\wls1034\WLSERV~1.3\common\NODEMA~1\nodemanager.domains>
<08-Feb-2011 17:16:48> <SEVERE> <Fatal error in node manager server>
weblogic.nodemanager.common.ConfigException: Native version is enabled but nodemanager native library could not be loaded
    at weblogic.nodemanager.server.NMServerConfig.initProcessControl(NMServerConfig.java:249)
    at weblogic.nodemanager.server.NMServerConfig.<init>(NMServerConfig.java:190)
    at weblogic.nodemanager.server.NMServer.init(NMServer.java:182)
    at weblogic.nodemanager.server.NMServer.<init>(NMServer.java:148)
    at weblogic.nodemanager.server.NMServer.main(NMServer.java:390)
    at weblogic.NodeManager.main(NodeManager.java:31)
Caused by: java.lang.UnsatisfiedLinkError: D:\products\wls1034\wlserver_10.3\server\native\win\32\nodemanager.dll: Can't load IA 32-bit .dll on a AMD 64-bit platform
    at java.lang.ClassLoader$NativeLibrary.load(Native Method)
    at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1803)
    at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1728)
    at java.lang.Runtime.loadLibrary0(Runtime.java:823)
    at java.lang.System.loadLibrary(System.java:1028)
    at weblogic.nodemanager.util.WindowsProcessControl.<init>(WindowsProcessControl.java:17)
    at weblogic.nodemanager.util.ProcessControlFactory.getProcessControl(ProcessControlFactory.java:24)
    at weblogic.nodemanager.server.NMServerConfig.initProcessControl(NMServerConfig.java:247)
    ... 5 more

Ok it appears that the node manager has gotten confused and thinks this is a 32bit install of Weblogic Server whereas it is the 64bit install.. Might have been something I did, or didnt do, on installation (e.g. –d64 on the jvm command line), however the workaround is pretty easy.

1. Create a file called nodemanager.properties in %WL_HOME%\common\nodemanager

on my machine it was D:\products\wls1034\wlserver_10.3\common\nodemanager

2. Add the following line to it

NativeVersionEnabled=false

3. And start it up!, this will force it not to use .DLL files and use emulation/non native methods instead..