set @undo_buffer_pages = 20 * 32;
select (reserved > @undo_buffer_pages), (used>reserved) from ndbinfo.resources
where resource_name = 'TRANSACTION_MEMORY'
    order by node_id;
(reserved > @undo_buffer_pages)	(used>reserved)
1	0
1	0
create tablespace ts1
add datafile 'data1.dat'
  use logfile group initial_lg1
initial_size 20M
engine = ndb;
create table t1 (
a int primary key,
b varchar(256)
) tablespace ts1 storage disk, engine = ndb;
insert into t1 values
(1, "initial log file test");
drop table t1;
alter tablespace ts1 drop datafile 'data1.dat';
drop tablespace ts1;