Deleting a WebLogic domain can be accomplished through a series of manual tasks.  There is no script or application to run that will accomplish deleting a domain or removing a domain.  The good news is the steps are fairly short and easy.  In the sample steps below it is assumed that your domain is named base_domain.

1. Delete the domain folder (meaning base_domain) under %WL_HOME%/user_projects/domains
2. Delete the domain folder (meaning base_domain) under %WL_HOME%/user_projects/apps
3. Remove any references to the domain in the %WL_HOME%/domain-registry.xml file
4. Remove any references to the domain in the file WL_HOME/common/nodemanager/nodemanager.domains
5. Remove any schema/database associated with the domain

Oracle recently released WebLogic 12c.  I have had a lot of customers ask about running ECM products and ADF on the newly released WebLogic Application server.  We talked with Oracle and basically the current releases of 11.1.1.5 ECM Products and ADF are not certified for WebLogic Application Server 12c.  Also, it does not look like 11.1.1.6 will be certified either.

In short, 12c looks neat and there looks to be a lot of new features but those toys are not currently part of our playground.

If you need to change the memory allocation to your WebLogic administration server and/or managed server, the following guide will show you how. Note: This will raise the limit for both the WebLogic administration server and managed server. You can verify these settings by watching the server startup script. Optionally, if you are setting the memory for Oracle UCM, you can verify this setting on the System Audit Information page.

Windows

1. Open the domain environment cmd file:

<middleware home>\user_projects\domains\base_domain\bin\setDomainEnv.cmd

2. Locate the following remark, inside the cmd file: (‘Search’ -> “@REM IF USER_MEM_ARGS”)

@REM IF USER_MEM_ARGS the environment variable is set, use it to override ALL MEM_ARGS values

3. Directly after this remark, add the following line:

set USER_MEM_ARGS=-Xms256m -Xmx1024m -XX:CompileThreshold=8000 -XX:PermSize=128m -XX:MaxPermSize=512m

4. The portion of the file you have edited looks like this:

@REM IF USER_MEM_ARGS the environment variable is set, use it to override ALL MEM_ARGS values

set USER_MEM_ARGS=-Xms256m -Xmx1024m -XX:CompileThreshold=8000 -XX:PermSize=128m -XX:MaxPermSize=512m

if NOT “%USER_MEM_ARGS%”==”" (

set MEM_ARGS=%USER_MEM_ARGS

)

UNIX/Linux

1. Open the domain environment sh file:

<middleware home>\user_projects\domains\base_domain\bin\setDomainEnv.sh

2. Locate the following remark, inside the sh file: (‘Search’ -> “#REM IF USER_MEM_ARGS”)

#REM IF USER_MEM_ARGS the environment variable is set, use it to override ALL MEM_ARGS values

3. Directly after this remark, add the following line:

USER_MEM_ARGS=-Xms256m -Xmx1024m -XX:CompileThreshold=8000 -XX:PermSize=128m -XX:MaxPermSize=512m

4. The portion of the file you have edited looks like this:

#REM IF USER_MEM_ARGS the environment variable is set, use it to override ALL MEM_ARGS values

USER_MEM_ARGS=-Xms256m -Xmx1024m -XX:CompileThreshold=8000 -XX:PermSize=128m -XX:MaxPermSize=512m

if NOT “%USER_MEM_ARGS%”==”" (

MEM_ARGS=%USER_MEM_ARGS

)

References

Note that the basic difference between Windows and UNIX/Linux regarding this issue is the use of the “set” command for the Windows environment.

Final Thoughts

This is certainly not the only way to accomplish this task, and it does affect all managed servers in the domain.  However, if you’re running a dev box with plenty of memory it is the simplest and gives you the best “umph” when running your various instances with the least amount of work.

Previously we showed how to install WebLogic Application Server 11gR1 PS3 (10.3.4) using the graphical mode installation.  You can also perform the installation in “Console Mode” which may be helpful if you only have terminal access (such as ssh).

Once you have download the generic installation jar you can execute a command line this to kick off the installation:

java -jar wls1035_generic.jar -mode=console

Upon executing this command you will basically get a text based version of the graphical installation.  You can enter Next to move to the next step or enter numeric keystrokes to toggle selected options.  Once all your choices are mad you’ll be presented with a text-based progress bar.  Once installation is complete you’ll be notified and control of the command line will be returned to you.

The installation is very fast!

Also, take a little bit to check out silent install info.