Data is kept in the files described below. Each of these can be removed,
but removing does not take effect until the server is restarted. Except
settings.db, the names of these resources may have been changed
in the settings.
trpfor quick-load snapshots and
jrnfor journal files. See the SWI-Prolog Semantic Web package for details. You can freely remove a graph by removing both files if the server is not running. Similar, you can remove the journal to restore a graph to its initial state after loading it from the source-data.
conf.d. Note that on heavily loaded servers this can be a significant slow-down and the file can become huge.
On Unix systems, this file can be moved or removed at any time. The server will start a new log-file. On Windows this will give a sharing violation.