MySQL Cluster can not find the NDB engine

[Garey Guan]

hi, all, i configure the cluster on 3 servers,
from the management node show successful:

ndb_mgm> show
Cluster Configuration
---------------------
[ndbd(NDB)] 2 node(s)
id=2 @192.168.10.245 (mysql-5.5.19 ndb-7.2.4, Nodegroup: 0, Master)
id=3 @192.168.10.250 (mysql-5.5.19 ndb-7.2.4, Nodegroup: 0)

[ndb_mgmd(MGM)] 1 node(s)
id=1 @192.168.10.249 (mysql-5.1.37 ndb-7.0.8)

[mysqld(API)] 2 node(s)
id=4 @192.168.10.245 (mysql-5.1.37 ndb-7.0.8)
id=5 @192.168.10.250 (mysql-5.1.37 ndb-7.0.8)

ndb_mgm>

but when i create a table like:
create table t(idx int) engine=NDB;

encounter:Unknow table engine 'ndbcluster', is it the mySQL Version issue? i'm using the version:
mysql> select version();
+-------------------------------+
| version() |
+-------------------------------+
| 5.1.37-ndb-7.0.8a-cluster-gpl |
+-------------------------------+
1 row in set (0.00 sec)



mysql> create table t(idx int primary key) engine=NDB;
ERROR 1286 (42000): Unknown table engine 'NDB'
mysql> show engine ndb\G;
ERROR 1286 (42000): Unknown table engine 'ndb'
ERROR:
No query specified

mysql> show engines\G;
*************************** 1. row ***************************
Engine: FEDERATED
Support: NO
Comment: Federated MySQL storage engine
Transactions: NULL
XA: NULL
Savepoints: NULL
*************************** 2. row ***************************
Engine: CSV
Support: YES
Comment: CSV storage engine
Transactions: NO
XA: NO
Savepoints: NO
*************************** 3. row ***************************
Engine: MyISAM
Support: YES
Comment: Default engine as of MySQL 3.23 with great performance
Transactions: NO
XA: NO
Savepoints: NO
*************************** 4. row ***************************
Engine: BLACKHOLE
Support: YES
Comment: /dev/null storage engine (anything you write to it disappears)
Transactions: NO
XA: NO
Savepoints: NO
*************************** 5. row ***************************
Engine: MRG_MYISAM
Support: YES
Comment: Collection of identical MyISAM tables
Transactions: NO
XA: NO
Savepoints: NO
*************************** 6. row ***************************
Engine: MEMORY
Support: YES
Comment: Hash based, stored in memory, useful for temporary tables
Transactions: NO
XA: NO
Savepoints: NO
*************************** 7. row ***************************
Engine: ARCHIVE
Support: YES
Comment: Archive storage engine
Transactions: NO
XA: NO
Savepoints: NO
*************************** 8. row ***************************
Engine: InnoDB
Support: DEFAULT
Comment: Supports transactions, row-level locking, and foreign keys
Transactions: YES
XA: YES
Savepoints: YES
8 rows in set (0.00 sec)


kindly help me pls.Thanks.

Regards
Garey