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Re: 'Cluster Failure' from NDB. Could not acquire global schema lock
Posted by: Andrew Morgan
Date: July 09, 2014 05:44AM

I realised after my last response that I should have been clearer about some terminology...

*data node* refers to the data node *process* - either ndbd or ndbmtd; perhaps when you said data node, you were referring to the host that one of the data node processes was running on?

Your MySQL Cluster configuration (described in the configi.ini file and viewed through ndb_mgm only allows a single MySQL Server (mysqld process) to be part of the cluster *and* that mysqld can only connect to the clustr if it is run on 1.0.0.113. You're showing the results of your query from 2 different MySQL Servers (this is what the mysql client command connects to) and so by definition, only one of them can be connected to the cluster.

Best Regards, Andrew.

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