Automating server administration using wsadmin scripting

The scripting library provides Jython script procedures to assist in automating your environment. Use the server management scripts to configure servers, the server runtime environment, Web containers, performance monitoring, and logs. You can also use the scripts to administer your servers.

About this task

Scripting 程式庫提供一組自動執行最常見應用程式伺服器管理功能的程序。 Jython Script 程式庫有三種使用方式。
  • 利用 wsadmin 工具,以互動模式執行 Jython Script 程式庫中的 Script。 您可以啟動 wsadmin 工具,然後利用下列語法來執行併入 Script 程式庫的個別 Script:
    wsadmin>AdminServerManagement.createApplicationServer("myNode", "myServer", "default")
  • 利用文字編輯器,依照下列範例所示,將 Jython Script 程式庫中的若干 Script 結合起來:
    #
    # My Custom Jython Script - file.py
    #
    AdminServerManagement.createApplicationServer("myNode", "Server1", "default")
    AdminServerManagement.createApplicationServer("myNode", "Server2", "default")
    
    # 使用其中一個作為叢集的第一個成員
    AdminClusterManagement.createClusterWithFirstMember("myCluster", "APPLICATION_SERVER",
        "myNode", "Server1")
    
    # 新增第二個成員到叢集中
    AdminClusterManagement.createClusterMember("myCluster", "myNode", "Server3")
    
    # 安裝應用程式
    AdminApplication.installAppWithClusterOption("DefaultApplication",
        "..\installableApps\DefaultApplication.ear", "myCluster") 
    
    # 啟動節點上的所有伺服器和應用程式
    AdminServerManagement.startAllServers("myNode")
    請將自訂 Script 儲存起來,然後依照下列語法所示,從指令行執行它:
    bin>wsadmin -language jython -f path/to/your/jython/file.py
  • 利用 Jython Scripting 程式庫程式碼作為撰寫自訂 Script 的語法範例。 Script 程式庫中的各個 Script 範例示範撰寫 wsadmin Script 的最佳實務。 Script 程式庫程式碼位於app_server_root/scriptLibraries 目錄中。 在這個目錄內,Script 是先依照功能組織成子目錄。 例如,app_server_root/scriptLibraries/application/V70 子目錄所包含的程序會執行適用於產品 7.0 版及更新版本的應用程式管理作業。Script 程式庫路徑中的 V70 子目錄不表示 在該子目錄中的 Script 為 7.0 版 Script。
The AdminServerManagement procedures in scripting library are located in the app_server_root/scriptLibraries/servers/V70 subdirectory. Each script from the directory automatically loads when you launch the wsadmin tool. To automatically load your own Jython scripts (*.py) when the wsadmin tool starts, create a new subdirectory and save existing automation scripts under the app_server_root/scriptLibraries directory.
最佳作法 最佳作法: To create custom scripts using the scripting library procedures, save the modified scripts to a new subdirectory to avoid overwriting the library. Do not edit the script procedures in the scripting library.bprac

You can use the AdminServerManagement.py scripts to perform multiple combinations of administration functions. Use the following steps to create an application server, connect the application server to the AdminService interface, configure Java™ virtual machine (JVM) settings, add the application server to a cluster, and propagate the changes to the node.

Procedure

  1. Optional: Launch the wsadmin tool.
    Use this step to launch the wsadmin tool and connect to a server, job manager, or administrative agent profile, or run the tool in local mode. If you launch the wsadmin tool, use the interactive mode examples to run scripts.
    • Enter the following command from the bin directory to launch the wsadmin tool and connect to a server:
      bin>wsadmin -lang jython
    • Enter the following command from the bin directory to launch the wsadmin tool in local mode and using the Jython scripting language:
      wsadmin -conntype none -lang jython
    When the wsadmin tool launches, the system loads all scripts from the scripting library.
  2. Create an application server.
    Run the createApplicationServer script procedure from the AdminServerManagement script library, as the following example demonstrates:
    bin>wsadmin -lang jython -c "AdminServerManagement.createApplicationServer("myNode", "myServer", "default")"
    You can also use interactive mode to run the script procedure, as the following example demonstrates:
    wsadmin>AdminServerManagement.createApplicationServer("myNode", "myServer", "default")
  3. Connect the application server of interest to the AdminService interface.
    The AdminService interface is the server interface to the application server administration functions. To connect the application server to the AdminService interface, run the configureAdminService script procedure from the AdminServerManagement script library, specifying the node name, server name, and connector type arguments, as the following example demonstrates:
    bin>wsadmin -lang jython -c "AdminServerManagement.configureAdminService("myNode", "myServer", 
    "IPC", "JSR160RMI")
    You can also use interactive mode to run the script procedure, as the following example demonstrates:
    wsadmin>AdminServerManagement.configureAdminService("myNode", "myServer", "IPC", "JSR160RMI")
  4. Configure the Java virtual machine (JVM).

    As part of configuring an application server, you might define settings that enhance the way your operating system uses of the JVM. The JVM is an interpretive computing engine responsible for running the byte codes in a compiled Java program. The JVM translates the Java byte codes into the native instructions of the host machine. The application server, being a Java process, requires a JVM in order to run, and to support the Java applications running on it.

    Run the configureJavaVirtualMachine script procedure from the AdminServerManagement script library, specifying the node name, server name, whether to run the JVM in debug mode, and any debug arguments to pass to the JVM process. You can optionally specify additional configuration attributes with an attribute list. Use the following example to configure the JVM:
    bin>wsadmin -lang jython -c "AdminServerManagement.configureJavaVirtualMachine("myNode", 
    "myServer", "true", "mydebug", [["internalClassAccessMode", "RESTRICT"],
         ["disableJIT", "false"], ["verboseModeJNI", "false"]])"
    You can also use interactive mode to run the script procedure, as the following example demonstrates:
    wsadmin>AdminServerManagement.configureJavaVirtualMachine("myNode", "myServer", "true", 
    "mydebug", [["internalClassAccessMode", "RESTRICT"],
    		 ["disableJIT", "false"], ["verboseModeJNI", "false"]])
  5. Create a cluster, and add the application server as a cluster member.
    Run the createClusterWithFirstMember script procedure from the AdminClusterManagement script library, as the following example demonstrates:
    bin>wsadmin -lang jython -c "AdminClusterManagement.createClusterWithFirstMember("myCluster", 
    "APPLICATION_SERVER", "myNode", "myServer")"
    wsadmin>AdminClusterManagement.createClusterWithFirstMember("myCluster", "APPLICATION_SERVER", 
    "myNode", "myServer")
  6. Synchronize the node.
    To propagate the configuration changes to the node, run the syncNode script procedure from the AdminNodeManagement script library, and specify the node of interest, as the following example demonstrates:
    bin>wsadmin -lang jython -c "AdminNodeManagement.syncNode("myNode")"
    You can also use interactive mode to run the script procedure, as the following example displays:
    wsadmin>AdminNodeManagement.syncNode("myNode")

Results

The wsadmin script libraries return the same output as the associated wsadmin commands. For example, the AdminServerManagement.listServers() script returns a list of available servers. The AdminClusterManagement.checkIfClusterExists() script returns a value of true if the cluster exists, or false if the cluster does not exist. If the command does not return the expected output, the script libraries return a 1 value when the script successfully runs. If the script fails, the script libraries return a -1 value and an error message with the exception.

By default, the system disables failonerror option. To enable this option, specify true as the last argument for the script procedure, as the following example displays:
wsadmin>AdminApplication.startApplicationOnCluster("myApplication","myCluster","true")

What to do next

Create custom scripts to automate your environment by combining script procedures from the scripting library. Save custom scripts to a new subdirectory of the app_server_root/scriptLibraries directory.


指出主題類型的圖示 作業主題



時間戳記圖示 前次更新: July 9, 2016 11:18
http://www14.software.ibm.com/webapp/wsbroker/redirect?version=cord&product=was-nd-mp&topic=txml_7libserver
檔名:txml_7libserver.html