Feature: Session Persistence

The session persistence feature allows drools kie sessions to be persisted in a database surviving pdp-d restarts.

Enable session persistence
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 policy stop
 features enable session-persistence

The configuration is located at:

  • $POLICY_HOME/config/feature-session-persistence.properties

Each controller that wants to be started with persistence should contain the following line in its <controller-name>-controller.properties

  • persistence.type=auto
Start the PDP-D using session-persistence
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 db-migrator -o upgrade -s ALL
 policy start

Facts will survive PDP-D restart using the native drools capabilities and introduce a performance overhead.

Disable the session-persistence feature
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 policy stop
 features disable session-persistence
 sed -i "/persistence.type=auto/d" <controller-name>-controller.properties
 db-migrator -o erase -s sessionpersistence   # delete all its database data (optional)
 policy start

End of Document