test

            ++count;

        }

        // Raw writes bypass createRecord(): bump the revision and drop the

        // record index so the directory cache and native lists see the import.

        backend.newRevesion();

        backend.getIndex().invalidate();

        // Ensure imported data is durably pushed to the cluster (synchronous)

        // before returning, so a restart won't lose the import.

        backend.flushSync();