1.4 KiB
1.4 KiB
Entity list truncation by drivers
Keystone supports the ability for a deployment to restrict the number
of entries returned from list_{entity} methods, typically
to prevent poorly formed searches (e.g. without sufficient filters) from
becoming a performance issue.
These limits are set in the configuration file, either for a specific driver or across all drivers. These limits are read at the Manager level and passed into individual drivers as part of the Hints list object. A driver should try and honor any such limit if possible, but if it is unable to do so then it may ignore it (and the truncation of the returned list of entities will happen at the controller level).