Wildfly XA-Datasource - galera cluster

Question

I develop an application that use jta transaction (JAVA TRANSACTION API) and which is using multiple resources (databases). So i've set xa-datasources in my wildfly environnement.

The problem is that i need a clustered database (fe :Mariadb + galera, mysql+ mysqlcluster).

• BUT GALERA HAS A LIMITATION and doesn't work with xa transaction https://mariadb.com/kb/en/mariadb/mariadb-galera-cluster-known-limitations/

• AND mysqlcluster but it doesn't work either because xa-transactions work only with INNODB storage engine, but mysqlcluster use NDBCluster engine. --> http://dev.mysql.com/doc/refman/5.7/en/xa-restrictions.html

Have you a database cluster environnement to recommend and that works with xa-transaction ?

Answer 1

(In my opinion...) Clustering (either Galera or NDB) and XA step on each other because...

Clustering is a form of XA in itself -- It has to coordinate an action among multiple machines, and it does so with some mini-XA code. This leaves no room for your XA to also get in there a do a similar thing at a higher level.

Why the heck do you want XA on top of Clustering?