Administering nodes remotely using the job manager

In a flexible management environment, you can asynchronously submit and administer jobs for large numbers of stand-alone application servers and deployment managers over a geographically dispersed area. At the remote machines, you can use jobs to manage applications, modify the product configuration, or do general purpose tasks such as run a script.

Before you begin

Install the WebSphere® Application Server product.

About this task

A job manager is a single management server from which you can remotely manage multiple administrative agents, deployment managers, and stand-alone (unfederated) application servers.

New feature: In a flexible management environment, the job manager enables you to asynchronously submit and administer jobs for large numbers of stand-alone application servers and deployment managers over a geographically dispersed area. Many of the management tasks that you can perform with the job manager are tasks that you can already perform with the product, such as application management, server management, and node management. However, with the job manager, you can aggregate the tasks and perform the tasks across multiple application servers or deployment managers.newfeat

In contrast to a deployment manager, the job manager does not exclusively inherit the administrative functions of its registered nodes. Nodes that register with a job manager maintain their own administrative capabilities. Additionally, the nodes periodically poll the job managers to determine whether there are jobs posted there that require action. You can administer all registered nodes separately from the job manager. The advantage to a job manager is that you can administer nodes in multiple varied environments.

To administer nodes, you submit jobs using the job manager. You can submit jobs for individual nodes or for groups of nodes that you define. After you submit a job, you can check the job status, check the status of nodes, and check the status of node resources. The status of managed resources is not necessarily up-to-date. Status in the job manager administrative console is updated only when a status job or an inventory job for the node containing the resource completes successfully. You can view node resources for nodes and groups of nodes that you administer. You can configure the job manager and view its properties.

Procedure

Results

Depending on the tasks that you completed, you might have submitted jobs, checked the status of jobs, viewed nodes and node resources, or administered groups of nodes.

What to do next

If you no longer need a managed node, unregister the node. You can unregister managed nodes from a job manager in either of two ways:

Use a deployment manager to unregister the deployment manager from a job manager. Use an administrative agent to unregister a stand-alone application server. To fully remove a stand-alone application server from the flexible management environment, you must first unregister the stand-alone application server from a job manager and then unregister it from an administrative agent.

Avoid trouble: Unregister a node before deleting its profile. For example, AppSrv02 is a stand-alone application server that is registered as nodeB. Use the administrative agent to unregister nodeB before deleting profile AppSrv02. For more information, see the topic on unregistering nodes of the administrative agent.

If the system fails when unregistering a deployment manager or stand-alone application server from a job manager, run the cleanupManagedNode command in the JobManagerNode group to clean up job manager registration information. The command does not remove the job history of the node that you are unregistering. Jobs in progress continue to run, but new jobs do not start for the node. See the topic on the JobManagerNode command group for the AdminTask object.

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Last updated: Oct 20, 2010 7:53:43 PM CDT
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