Creating application servers

During the installation process, the product creates a default application server, named server1. Most installations require several application servers to handle the application serving needs of their production environment. You can use the command-line tool or the administrative console to create additional applications servers.

About this task

To create a new application server, you can either use the createApplicationServer, createWebServer, or createGenericServer wsadmin command, or you can use the administrative console.

If you are migrating from a previous version of the product, then you can upgrade a portion of the nodes in a cell, while leaving others at the previous product level. This means that, for a period of time, you might be managing servers that are running at two different release levels in the same cell. In this mixed environment, there are restrictions on what you can do with the servers that are at the older release level:
  • You can only create new server definitions on nodes that are running on the current release level.
  • When you create a new server definition, you must use a server configuration template, and that template must be created from a server instance that matches the version of the node on which you are creating a server.

There are no restrictions on what you can do with the servers running on the current release level.

Avoid trouble: [aug2010] If you are using a global resource serialization (GRS) ring to attach one or more monoplexes to a sysplex environment, the cell name of any servers running in any of the monoplexes must be unique within the entire GRS environment. This requirement means that the cell name of a server running in any of the monoplexes:
  • Must be different than the cell name of any servers running in the sysplex
  • Must be different than the cell name of any servers running in another monoplex that is attached to the sysplex
If you have servers with duplicate cell names within the GRS environment, WebSphere Application Server cannot differentiate between the sysplex cell and the monoplex cell, and treats both servers as part of the same cell, This inaccurate cell association typically causes unpredictable processing results. [aug2010]
aug2010
gotcha

You can use the administrative console to perform the following steps to create a new application server:

Procedure

  1. In the administrative console, click Servers > Application servers > New.
  2. Select a node for the application server.
  3. Enter a name for the application server. The name must be unique within the node.
  4. Select a server template for the new server. The new application server inherits all of the configuration settings of the template server.
  5. Select whether you want unique ports generated for the application server.

    By default, this option is enabled. If you select this option, you might need to update the alias list for the virtual host that you plan to use with this server to contain these new port values. If you deselect this option, ensure that the default port values do not conflict with other servers on the same physical machine.

  6. Optional: Click Next, and specify a short name for the server. The short name is also used as the JOBNAME for the server. If you do not specify a value for the short name field, the short name defaults to BBOSnnn, where nnn is the first free number in the cell that can be used to create a unique short name. For example, if default short names are already assigned to two other servers in the cell, the short name BBOS003 will be assigned to this server if you do not specify a short name when you create this server.
  7. Optional: Specify a generic short name for the server.

    The generic short name for the server becomes either the cluster transition name, if you are creating an unclustered server, or the cluster short name, if you are creating a clustered server. If you do not specify a value for the generic short name field, the generic short name defaults to BBOCnnn, where nnn is the first free number in the cell that can be used to create a unique generic short name. For example, if default generic short names are already assigned to three other servers in the cell, the generic short name BBOC004 is assigned to this server if you do not specify a generic short name when you create this server.

  8. If you use an existing application server as the template for this server, select whether to map applications from the existing server to the new server. By default, this option is disabled.
  9. Click Apply, and then click Save to save your changes.
  10. Click Synchronize changes with nodes if you want to force node synchronization now and save your changes to the master repository. If you don't click Synchronize changes with nodes than the changes will note be applied across the node until normal node synchronization occurs.

Results

The new application server is displayed in the list of servers on the administrative console Application servers page.

What to do next

This newly created application server is configured with default settings that are not displayed when you run the Create New Application Server wizard.

You can:




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Last updated: Aug 29, 2010 8:25:23 PM CDT
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