No free node id found for mysqld(API) when executing ndbinfo_sellect_all logbuffers logspaces

[Ricardo Vilhena]

Hello.

I'm running MySQL Cluster 7.3.7 on a CentOS 6.6 x64 with two Data nodes, each one in a separate host, and a Management and SQL node on the same host.

I'm following the documetation here: http://dev.mysql.com/doc/refman/5.6/en/mysql-cluster-programs-ndbinfo-select-all.html

and they give this example: ndbinfo_select_all logbuffers logspaces

I tried running this in the Management Node (which is also the SQL Node) and I got this error: Unable to connect to management server.
I checked the log file (/var/lib/mysql-cluster/ndb_1_cluster.log) and the error is this:

2015-01-29 17:17:39 [MgmtSrvr] WARNING -- Failed to allocate nodeid for API at x.x.x.20. Returned error: 'No free node id found for mysqld(API).'

(x.x.x.20 is the IP address of the Management node)

I've already searched for a solution, but I didn't found anything, maybe the answer is really obvious, but since I'm a newbie in the cluster architecture, I'm not seing it :/

Can anyone help?

Thanks a lot.

Regards,
Vilhena