Walks run at most daily and stop after ten minutes or two million files; datasets are read from
their counters and large items from their top level only. The database platform's tables are
dumped with pg_dumpall rather than copied as live files.
Backup lines are derived from each module's data section instead of written by hand; the holder
measures declared items, reads the array under them, and deletes a retired item only after a last
restore point; the Go providers say each held consumer's size so an empty replacement is seen.
jochen