The LQE functional user (lqe_user) must created in the JTS for the lifecycle tool, as described in Configure LQE in the JTS administration console
If LQE and the lifecycle tool you are indexing share the same JTS, configuring LQE to use it as a data source is very simple since JTS can share a lot of the configuration data.
For more complex topologies in which there are multiple JTS servers, refer to one of the following topics:
If at any point you need to stop indexing a data source or pause your indexing process, in the main Data Sources window hover over the Actions field to display the icons for pausing, stopping or deleting an index.