ERROR 1296 (HY000): Got error 1229 'Too long frm data supplied' from NDBCLUSTER (2 replies)

Hi,

after a simple:

ALTER TABLE test_table add test_col tinyint(1) default '0';

i got

"ERROR 1296 (HY000): Got error 1229 'Too long frm data supplied' from NDBCLUSTER"

if i do
ALTER TABLE test_table add test_col tinyint(1)

it returns:
ERROR 1229 (HY000): Variable '' is a GLOBAL variable and should be set with SET GLOBAL



It only occurs in one of the cluster tables. A restart of the cluster dosn't help.
I get it on my development and in the production enviroment.

The table had 164 attributes. The maxnoofattributes variable isn't the problem..

please help.
thx in advance..