sub _check_duplicate {
my $self = shift;
-
- $self->lock_table;
-
+ # Not a reliable check because the table isn't locked, but
+ # that's why we have a unique index. This is just to give a
+ # friendlier error message.
my @dup;
@dup = $self->find_duplicates('global', 'ip_addr');
if ( @dup ) {