WebLogic on Linux...

Question

Hello,
I am interested in knowing the status of WebLogic on Linux. I've heard
there are some problems with multi-threading on Linux, limiting the
performance of WebLogic. Any truth to this?
Are many people using it?
Jason
Jason Rosenberg
SquareTrade
(remove 'nospam' from my return address)

Answer 1

visor,
Your classpath looks alright. Have you modified your weblogic.policy to
match your environment? Specifically the "grant CodeBase" stuff.
Also, so that there are no problems with permissions, I created a linux
account named 'weblogic' and installed WLS under the 'weblogic' account.
Who is the owner of /local1 and subdirectories?
Give me yell if u still have problems.
John
visor-palm John wrote:
>
Jesus,
I am trying to use WebLogic 5.1 with RedHat Linux 6.1 (kernel = 2.2.12-10)
but unable to.
I have tried several different JVMs but to no success. Here is what I am
seeing. If you could let me know if this looks familiar to you I'd
appreciate it (btw, Blackdown JDK 1.2.2_FCS has native threads)
./startWebLogic.sh
LD_LIBRARY_PATH=/local1/opt/weblogic/lib/linux
JAVA 2 JAVA 2
CMD=/usr/java/bin/java -native -ms64m -mx64m -classpath=./lib/weblogic510sp5boot.jar:./classes/boot:./eval/cloudscape/lib/cloudscape.jar -Dweblogic.class.path=./lib/weblogic510sp5.jar:./license:./classes:./lib/weblogicaux.jar:./myserver/serverclasses -Dweblogic.home= . -Djava.security.manager -Djava.security.policy==/local1/opt/weblogic/weblogic.policy weblogic.Server
java.lang.NoClassDefFoundError: weblogic/kernel/AuditableThread
at java.lang.ClassLoader.defineClass0(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java, Compiled
Code)
at java.lang.ClassLoader.defineClass(ClassLoader.java, Compiled
Code)
at
weblogic.boot.ServerClassLoader.findLocalClass(ServerClassLoader.java,
Compile
d Code)
at weblogic.boot.ServerClassLoader.loadClass(ServerClassLoader.java,
Compiled Cod
e)
at java.lang.ClassLoader.loadClass(ClassLoader.java, Compiled Code)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java,
Compiled Code)
at java.lang.ClassLoader.defineClass0(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java, Compiled
Code)
at java.lang.ClassLoader.defineClass(ClassLoader.java, Compiled
Code)
at
weblogic.boot.ServerClassLoader.findLocalClass(ServerClassLoader.java,
Compile
d Code)
at weblogic.boot.ServerClassLoader.loadClass(ServerClassLoader.java,
Compiled Cod
e)
at java.lang.ClassLoader.loadClass(ClassLoader.java, Compiled Code)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java,
Compiled Code)
at java.lang.Class.getMethod0(Native Method)
at java.lang.Class.getMethod(Class.java, Compiled Code)
at weblogic.Server.getMainMethod(Server.java, Compiled Code)
at weblogic.Server.startServerDynamically(Server.java, Compiled
Code)
at weblogic.Server.main(Server.java, Compiled Code)
at weblogic.Server.main(Server.java, Compiled Code)
java.lang.NoClassDefFoundError: weblogic/t3/srvr/SrvrThread
at java.lang.ClassLoader.defineClass0(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java, Compiled
Code)
at java.lang.ClassLoader.defineClass(ClassLoader.java, Compiled
Code)
at
weblogic.boot.ServerClassLoader.findLocalClass(ServerClassLoader.java,
Compile
d Code)
at weblogic.boot.ServerClassLoader.loadClass(ServerClassLoader.java,
Compiled Cod
e)
at java.lang.ClassLoader.loadClass(ClassLoader.java, Compiled Code)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java,
Compiled Code)
at java.lang.Class.getMethod0(Native Method)
at java.lang.Class.getMethod(Class.java, Compiled Code)
at weblogic.Server.getMainMethod(Server.java, Compiled Code)
at weblogic.Server.startServerDynamically(Server.java, Compiled
Code)
at weblogic.Server.main(Server.java, Compiled Code)
at weblogic.Server.main(Server.java, Compiled Code)
The WebLogic Server did not start up properly.
Exception raised: java.lang.NoClassDefFoundError:
weblogic/t3/srvr/ListenThread
java.lang.NoClassDefFoundError: weblogic/t3/srvr/ListenThread
at java.lang.Class.getMethod0(Native Method)
at java.lang.Class.getMethod(Class.java, Compiled Code)
at weblogic.Server.getMainMethod(Server.java, Compiled Code)
at weblogic.Server.startServerDynamically(Server.java, Compiled
Code)
at weblogic.Server.main(Server.java, Compiled Code)
at weblogic.Server.main(Server.java, Compiled Code)
"Jesus M. Salvo Jr." <[email protected]> wrote in message
news:[email protected]...
Any ideas Rob on when the Linux Performance Pack will be part of the
official WL distro? I am using the perf pack right now ... but remember
that possibly benign exception when garbage collecting (though it doesnt
seemt to affect WLS)
John Salvo
Rob Woollen wrote:
Jason Rosenberg wrote:
Hello,
I am interested in knowing the status of WebLogic on Linux.It works pretty well.
I've heard
there are some problems with multi-threading on Linux, limiting the
performance of WebLogic. Any truth to this?
Some of the Linux JVMs are still using green threads. If you don't
require Java2, IBM's 118 for Linux is a pretty good JVM, and it uses
native threads.
Are many people using it?
I do not know how many people have deployed production WLS sites on
Linux.
Personally, I develop WLS on Linux, and it runs very well.
-- Rob
Jason
Jason Rosenberg
SquareTrade
(remove 'nospam' from my return address)