When you enable authentication sessions, PingFederate maintains session data in memory. PingFederate also supports maintaining session data both in memory and on an external storage. This optional capability allows your organization to support use cases where a longer session duration or a greater resilience against restarts of PingFederate and browsers is desired.

PingFederate supports storing persistent authentication sessions on a database server or a PingDirectory server. When stored on a database server, the default cleanup task removes expired authentication sessions once a day. If stored on a PingDirectory server, configure a cleanup plugin in PingDirectory to suit the needs of your organization.