WAS v8.5 > Script the application serving environment (wsadmin) > Configure servers with scripting

Configure processes using scripting

We can use wsadmin to configure processes in the application server configuration. Enhance the operation of an application server by defining command-line information for starting or initializing the application server process. Process definition settings define runtime properties such as the program to run, arguments to run the program, and the working directory.

There are three ways to perform this task. Complete the steps in this task to use the setProcessDefinition command for AdminTask or the AdminConfig object to modify your process definition configuration. Alternatively, we can use the configureProcessDefinition Jython script in the AdminServerManagement script library to configure process definition attributes. The wsadmin tool automatically loads the script when the tool starts. Use the following syntax to configure process definition settings using the configureProcessDefinition script:

For additional information and argument definitions, see the documentation for the AdminServerMananagment script library.

  1. Start the wsadmin scripting tool.

  2. Use the setProcessDefinition command for the AdminTask object or the AdminConfig object to modify your process definition configuration.

    • Use the following example to configure the process definition with the setProcessDefinition command for AdminTask:

      • Jacl:

          $AdminTask setProcessDefinition {-interactive}
      • Using Jython:

          AdminTask.setProcessDefinition (['-interactive'])

    • Use the following steps to configure the process definition with the AdminConfig option:

      1. Identify the server and assign it to the s1 variable, as the following example demonstrates:

        • Jacl:

            set s1 [$AdminConfig getid /Cell:mycell/Node:mynode/Server:server1/]
        • Using Jython: 
          s1 = AdminConfig.getid('/Cell:mycell/Node:mynode/Server:server1/')
print s1

        AdminConfig getid command description . The previous commands consist of the following elements:

        Element Description
        set Jacl command
        s1 Variable name
        $ Jacl operator for substituting a variable name with its value
        AdminConfig Object that represents the WebSphere Application Server configuration
        getid AdminConfig command
        Cell Object type
        mycell Name of the object that will be modified
        Node Object type
        mynode Name of the object that will be modified
        Server Object type
        server1 Name of the object that will be modified
        print Jython command

        Example output:

          server1(cells/mycell/nodes/mynode/servers/server1|server.xml#Server_1)

      2. Identify the process definition for the server of interest, and assign it to the processDef variable, as the following example displays:

        • Jacl: 
          set processDef [$AdminConfig list JavaProcessDef $s1]
set processDef [$AdminConfig showAttribute $s1 processDefinitions]
        • Using Jython: 
          processDef = AdminConfig.list('JavaProcessDef', s1)
print processDef
processDef = AdminConfig.showAttribute(s1, 'processDefinitions')

        Example output:

          (cells/mycell/nodes/mynode/servers/server1|server.xml#JavaProcessDef_1)

      3. Modify the configuration attributes for the process definition.

        The following example changes the working directory:

        • Jacl:

            $AdminConfig modify $processDef {{workingDirectory c:/temp/user1}}
        • Using Jython:

            AdminConfig.modify(processDef, [['workingDirectory', 'c:/temp/user1']])

        The following example modifies the name of the stderr file:

        • Jacl: 
          set errFile [list stderrFilename \${LOG_ROOT}/server1/new_stderr.log]
set attr [list $errFile]
$AdminConfig modify $processDef [subst {{ioRedirect {$attr}}}]
        • Using Jython: 
          errFile = ['stderrFilename', '\${LOG_ROOT}/server1/new_stderr.log']
attr = [errFile]
AdminConfig.modify(processDef, [['ioRedirect', [attr]]])

        The following example modifies the process priority level:

        • Jacl:

            $AdminConfig modify $processDef {{execution {{processPriority 15}}}}
        • Using Jython:

            AdminConfig.modify(processDef, [['execution', [['processPriority', 15]]]])

        The following example changes the maximum number of times the product tries to start an application server in response to a start request. If the server cannot be started within the specified number of attempts, an error message is issued that indicates the application server could not be started.

        • Jacl:

            $AdminConfig modify $processDef {{monitoringPolicy {{maximumStartupAttempts 1}}}}
        • Using Jython:

            AdminConfig.modify(processDef, [['monitoringPolicy', [['maximumStartupAttempts', 1]]]])

  3. Save the configuration changes.

    Use the following command example to save your configuration changes:

      AdminConfig.save()


Related


Define application server processes
Use the wsadmin scripting AdminConfig object for scripted administration


Reference:

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


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