WebSphere Extended Deployment, Version 6.0.x
             Operating Systems: AIX, HP-UX, Linux, Solaris, Windows, z/OS


Setting maintenance mode on a node

Use maintenance mode to perform diagnostic tests, maintenance, or tuning on a node without disrupting incoming traffic to that node in a production environment.

Before you begin

You can set maintenance mode on a node that is represented in the administrative console. To view the nodes that are configured, click System administration > Middleware nodes.

You can use maintenance mode when you route requests with on demand routers (ODR) or proxy servers. If you are using a Web server to route requests, then maintenance mode is not recognized.

About this task

When a node is in the running state, the dynamic operations environment considers that node to be available for servicing application requests. When problems occur, you must perform diagnostics, maintenance, or tuning on the node. Use maintenance mode to stop routing traffic to the node while you determine the problem.

Procedure

  1. Select the nodes for which you want to change the maintenance mode. In the administrative console, click System administration > Middleware nodes.
  2. Select the maintenance mode.
    • Maintenance mode: Immediately moves the node to maintenance mode. Any existing requests on the node are completed. Any new requests are routed to nodes that are not in maintenance mode.
    • Maintenance immediate stop: Stops all of the processes on the node and immediately moves the node and all the servers running on the node to maintenance mode, without serving the remaining requests on the node. The node and all the servers on the node are in maintenance mode after the node and servers stop. The nodes and servers continue to be in maintenance mode when you restart the node and servers on the node.
    • Normal: Moves the node out of maintenance mode, and the node begins to serve requests from the ODR.
  3. Click Set mode.

Results

HTTP traffic is no longer routed to the nodes that you have in maintenance mode.




Related tasks
Creating health policies
Creating ODRs
Related information
Routing and service policies
Task topic    

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Last updated: Oct 16, 2009 11:06:12 AM EDT
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