Clearing the cache

If you change a user's group membership so that he or she has less privileges, you may want to clear the cache entries for that user to make sure that your changes take effect immediately. Similarly, if you change a user or group's privileges on an object, you can clear the cache entries for that object.

You can also clear the entire cache.

NoteClearing the cache will result in cache misses on subsequent requests and may degrade the portal's performance until the cache is repopulated.

To clear the entire cache, or to clear the cache for a particular user, you must be the portal administrator. To clear the cache for a particular portal object, you must have at least Manage privileges on the object.

To clear the entire cache:

  1. In the Services portlet, click Global Settings.

    Note: By default, the Services portlet is on the Administer tab of the Builder page.

  2. Click the Cache tab.

  3. Select Clear The Entire Web Cache.

  4. Click Apply or OK to clear the cache.

To clear the cache for a particular user:

  1. In the Services portlet, click Global Settings.

    Note: By default, the Services portlet is on the Administer tab of the Builder page.

  2. Click the Cache tab.

  3. In the Clear Cache For User field, enter the name of the user for whom you want to clear the cache.

    Tip: If you are not sure of the user name, click Browse Users and select from the list provided.

  4. Click Apply or OK to clear the cache for the specified user.

    Note: Alternatively, you can clear the cache for a particular user by editing the user's portal profile.

To clear the cache for a particular portal object:

You can clear cache entries for page groups, pages, page templates, portlets in the Portlet Repository, Portal database providers, and Portal database provider components.

  1. In the Navigator, drill down to the object with which you want to work.

  2. Click Clear Cache.

  3. Click OK.

Notes

Related topics

How does caching work in Oracle9iAS Portal?
Setting the expiry time for invalidation-based caching