Configuring the secure conversation client cache using the administrative console

WebSphere Application Server supports Web Services Secure Conversation (WS-SecureConversation) client caching for the security context token in both cluster and non-cluster environments.

About this task

For both distributed and local clients, the secure conversation client cache stores tokens on the client. WebSphere Application Server supports the security context token for the secure conversation client and trust service component only.

WebSphere Application Server supports caching for the security context token in both cluster and non-cluster environments. In a cluster environment, you can configure the security context token cache for the secure conversation client to be distributed. If the security context token cache is distributed, then all servers in the cluster share information about issued tokens.

Procedure

  1. To configure the secure conversation client cache, click Services > Secure conversation client cache.
  2. Change the time in minutes in the Time token is in cache after timeout field. The default value is 120 minutes. The minimum allowable time is 10 minutes, meaning you cannot enter a value that is less than 10 minutes. This field specifies the number of minutes that the token is in cache after the token expiration time expires (cache persist period).
  3. Change the time in minutes in the Renewal interval before token timeout field. The default value and minimum allowable time is 10 minutes. You cannot enter a value that is less than 10 minutes. This field specifies the time period before the token expires when the client attempts to renew the token. This window of time is just before token expires where, if the token is accessed, then the client attempts to renew the token so that a downstream call can complete.

    It is important that this setting be set to a length of time that is longer than the longest possible transaction. This value must include the time it takes to transport to and from the server, the time that is needed by the server to process the request, and the time that is cached by reliable messaging, if appropriate. Setting this value to a length of time that is too small might result in the token expiring in the middle of a transaction and might prevent the transaction from completing.

    [Fix Pack 13 or later] If the Security Context Token is renewed too often, it might cause Web Services Secure Conversation (WS-SecureConversation) to fail or even cause an out-of-memory error to occur. It is recommended that you set the renewal interval before the token expires value for the Secure conversation client cache to a value less than the token timeout value for the Security Context Token. It is also suggested that the token timeout value be at least two times the renewal interval before the token expires value.

  4. Select the Distribute cache among clustered server check box, if you want to share the tokens across the cluster.
  5. To create a new custom property, click New. For example, you might add the cancelActionRST custom property with a value of http://schemas.xmlsoap.org/ws/2005/02/trust/RST/SCT/Cancel.
  6. To edit an existing custom property, select the check box for the name of the existing custom property, and then click Edit. For example, you might change the name or the value of the cancelActionRST custom property.
  7. Click Apply to save and apply the changes.

Results

You have provided the basic information to configure the secure conversation client cache settings. Use either the administrative console or the wsadmin tool to modify the secure conversation client cache configuration.

What to do next

You can also add or delete custom properties for the trust service using the wsadmin tool. The wsadmin tool examples are written in the Jython scripting language.



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Last updatedLast updated: Aug 31, 2013 1:23:07 AM CDT
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