原文地址: https://www.elastic.co/guide/en/elasticsearch/reference/7.7/security-api-clear-cache.html, 原文档版权归 www.elastic.co 所有
IMPORTANT: No additional bug fixes or documentation updates
will be released for this version. For the latest information, see the
current release documentation.
Clear cache APIedit
Evicts users from the user cache. You can completely clear the cache or evict specific users.
Requestedit
POST /_security/realm/<realms>/_clear_cache
POST /_security/realm/<realms>/_clear_cache?usernames=<usernames>
Descriptionedit
User credentials are cached in memory on each node to avoid connecting to a remote authentication service or hitting the disk for every incoming request. There are realm settings that you can use to configure the user cache. For more information, see Controlling the user cache.
To evict roles from the role cache, see the Clear roles cache API.
Path parametersedit
-
realms - (Required, list) A comma-separated list of the realms to clear.
-
usernames - (Optional, list) A comma-separated list of the users to clear from the cache. If you do not specify this parameter, the API evicts all users from the user cache.
Examplesedit
For example, to evict all users cached by the file realm:
POST /_security/realm/default_file/_clear_cache
To evict selected users, specify the usernames parameter:
POST /_security/realm/default_file/_clear_cache?usernames=rdeniro,alpacino
To clear the caches for multiple realms, specify the realms as a comma-delimited list:
POST /_security/realm/default_file,ldap1/_clear_cache