Enable WAS to use an intermediary node for Web services transactions

Use intermediary nodes with Web Services Atomic Transactions (WS-AT) or Web Services Business Activities (WS-BA) to support the exchange of associated requests across firewalls and outside the WAS domain. You configure WAS to use an intermediary node by specifying the external endpoint URL information for the intermediary node in each server that is accessed through the intermediary.

Set the intermediary node to use, and ensure that you know the address or addresses of the intermediary node to map to servers in the WAS configuration.

Configure the intermediary to listen on a specific port for protocol messages and to route these messages to the specific WAS instance to enable. See the related information for an example configuration where an IBM HTTP server is the intermediary.

 

1. In the admin console ...

   Servers > Server Types > WebSphere application servers > server_name > [Container Services] Transaction Service.

2. In the External WS-Transaction HTTP(S) URL prefix section, click Specify custom prefix, then type the external endpoint URL information for the intermediary node in the field. Use one of the following formats for the prefix, where host_name and port represent the intermediary node that is an HTTP or HTTPS proxy for the server, and port is optional.

   • http://host_name:port
     

   • https:
     //host_name:port
     

   If we use an HTTP server to route messages through a Proxy Server for WAS, the prefix applies to the HTTP server.

3. Click Apply or OK.

4. Save the changes to the master configuration.

5. Repeat the previous steps for each server that is accessed through the intermediary node.

6. Restart the servers.

 

Results

You configured the system to use an intermediary node. Test the configuration to ensure that messages are routed as you expect.

Previous topic: Set an intermediary node for Web services transactions

 

Related concepts

Web Services transactions, high availability, firewalls and intermediary nodes
Use WS-Transaction policy to coordinate transactions or business activities for Web services

 

Related tasks

Use the transaction service

 

Related

Example: Set IBM HTTP server as an intermediary node for Web services transactions
Transaction service settings