Do not list object-level checksums as these will make the metadata larger,
and the file-level checksum already ensures the file contents on restore
are correct.
while (!refs.empty()) {
ref = refs.front(); refs.pop_front();
+
+ // The file-level checksum guarantees integrity of the data.
+ // To reduce the metadata log size, do not include checksums on
+ // individual objects.
+ ref.clear_checksum();
+
object_list.push_back(ref.to_string());
db->UseObject(ref);
}