Network Deployment (Distributed operating systems), v8.0 > Scripting the application serving environment (wsadmin) > Configure servers with scripting

Modify variables using wsadmin.sh

Use scripting and wsadmin.sh to modify variables in the application server.

Start wsadmin.sh.

There are two ways to modify an application server variable. We can use an AdminTask object or an AdminConfig object.

Procedure

1. Modify an application server variable.

   • Use the AdminTask object.

     ### Jacl

     $AdminTask setVariable {-interactive}
     

     ### Jython

     AdminTask.setVariable (['-interactive'])
     

   • Use the AdminConfig object.

     The following examples modify the DB2_JDBC_DRIVER_PATH variable on the node level:

     ### Jacl

     set varName DB2_JDBC_DRIVER_PATH
     set newVarValue C:/SQLLIB/java
     set node [$AdminConfig getid /Node:myNode/]
     set varSubstitutions [$AdminConfig list VariableSubstitutionEntry $node]
     
     foreach varSubst $varSubstitutions {
        set getVarName [$AdminConfig showAttribute $varSubst symbolicName]
        if {[string compare $getVarName $varName] == 0} {
           $AdminConfig modify $varSubst [list [list value $newVarValue]]
           break
        }
     }
     

     ### Jython

     varName = "DB2_JDBC_DRIVER_PATH"
     newVarValue = "C:/SQLLIB/java"
     node = AdminConfig.getid("/Node:myNode/")
     varSubstitutions =
        AdminConfig.list("VariableSubstitutionEntry",node).split(java.lang.System.getProperty("line.separator"))
     
     for varSubst in varSubstitutions:
        getVarName = AdminConfig.showAttribute(varSubst, "symbolicName")
        if getVarName == varName:
           AdminConfig.modify(varSubst,[["value", newVarValue]])
           break
     

2. Save the configuration changes.

   Save the configuration changes:

   AdminConfig.save()
   

3. Synchronize the node.

   Use the syncActiveNode or syncNode scripts in the AdminNodeManagement script library to propagate the configuration changes to node or nodes.

   • Use the syncActiveNodes script to propagate the changes to each node in the cell:

     AdminNodeManagement.syncActiveNodes()
     

   • Use the syncNode script to propagate the changes to a specific node:

     AdminNodeManagement.syncNode("myNode")
     

Use the wsadmin scripting AdminConfig object for scripted administration

Related

Server settings configuration scripts
Commands for the AdminConfig object using wsadmin.sh

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