[rt-users] mysql DB engine ndbdcluster

Alex Vandiver alex at chmrr.net
Tue Dec 13 05:26:12 EST 2016

On Tue, 13 Dec 2016 10:28:41 +0100
Reinhold Pescoller <reinhold at aiding.it> wrote:
> Is there some possibilty to change the default db engine from innodb to 
> ndbdcluster in rt4?

RT assumes REPEATABLE READ isolation; you may encounter subtle and
difficult to diagnose bugs under READ COMMITTED isolation, which is all
that NDB supports.  Performance of joins is generally not great under
NDB, and RT assumes that joins do not incur a significant cost penalty.

In short, you _might_ be able to get it to run simply by adjusting the
table types, but I only expect it to get you into trouble down the road.
 - Alex

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