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# Caching Realm: Groups

Configuration Options Related Tasks Related Topics

Use this page to configure and enable the Group cache for the Caching realm. To use the Caching realm, you need to use Compatibility security. The use of the Caching realm is deprecated in this release of WebLogic Server.

#### Configuration Options

Name | Description
--- | ---
Enable Group Cache | Specifies whether the Group cache should be enabled. By default, the Group cache is enabled.
Group Cache Size | The maximum number of group lookups (between 17 and 65537) that should be cached. This attribute should be a prime number for best performance.
Group Cache TTLPositive | The number of seconds (between 1 and a positive 32-bit integer) to retain the results of a successful group lookup.
Group Cache TTLNegative | The number of seconds (between 1 and a positive 32-bit integer) to retain the results of an unsuccessful group lookup.
Group Membership Cache TTL | The number of seconds to store the members of a group before updating it.

Related Tasks

- Configure Caching realms
- Enable the Group cache
- Enable the Authentication cache
- Enable the User cache
- Enable the Permission cache

Related Topics

- Using Compatibility Security