Starting Managed Servers without an Administration Server using Node Manager and WLST

Weblogic 12c


The steps for starting the Managed  Server without AdminServer using WLST and Node Manager are as follows :

i)  Setting up your environment.

Add WebLogic Server classes to the CLASSPATH environment variable and WL_HOME\server\bin to the PATH environment variable.  OR

You can use a  C:\Oracle\Middleware\wlserver_12.1\server\bin\setWLSEnv.cmd  script to set both variables.


ii)  Start WLST Session using command : java weblogic.WLST

iii)  Start Node Manager using command :

                         startNodeManager(verbose=’true’, NodeManagerHome=’C:\\Oracle\\Middleware\\wlserver_12.1\\common\\nodemanager’, ListenPort=’5556′, ListenAddress=’localhost’)

iv) Connect WLST to a Node Manager by entering the nmConnect command.

nmConnect(‘weblogic’, ‘weblogic123’, ‘localhost’, ‘5556’, ‘base_domain’ , ‘C:\\Oracle\\Middleware\\user_projects\\domains\\base_domain’ , ‘ssl’)

note: Node Manager security relies on a one-way SSL connection between the client and server.If you are establishing a command line connection to the Java Node Manager using the WebLogic Server Scripting Tool (WLST) nmConnect command, you provide the Node Manager user name and password(here weblogic and weblogic123 respectively). Node Manager verifies the username and password against the domain’s file.Node Manager credentials are located on the Security>General>Advanced Options of Console page.Administration Console users do not need to explicitly provide credentials to connect to Node Manager—the Node Manager user name and password are available in the domain configuration and are provided automatically.

v) Starts the managed server in the current domain using Node Manager. : nmStart('Server-0')



 Related Common Issues :


If you are trying to automate the environment using Node Manager and WLST .

And you are trying to Start the Admin Server and all the Managed Server using WLST only.

And the Managed servers are to be started for the first time using WLST and Node Manager then you may encounter the below error :



Cause :

The reason for the above error is that when the Managed Server are to be started for the first time using the Node Manager and WLST,  the file ( at %domain_home%/servers/ManagedServer/security/) and file ( %domain_home%/servers/ManagedServer/data/NodeManager/) should be already present.

Solution :

To generate the file , and file use the below WLST command :






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