[openstack-dev] [Solum] MySQL Storage Engine

Monty Taylor mordred at inaugust.com
Wed Dec 4 20:32:37 UTC 2013

On 12/04/2013 03:25 PM, Clint Byrum wrote:
> Excerpts from Paul Montgomery's message of 2013-12-04 12:04:06 -0800:
>> TLDR: Should Solum log a warning if operators do not use the InnoDB
>> storage engine with MySQL in Solum's control plane?
>> Details:
>> I was looking at: https://review.openstack.org/#/c/57024/
>> Models.py to be specific.
>> The default storage engine is InnoDB for MySQL which is good.  I took a
>> quick look at the storage engines and only InnoDB seems reasonable for the
>> Solum control plane (it is ACID complaint).  I assume that we'll all be
>> coding towards an ACID compliant database for performance (not having to
>> revalidate database writes and consistency and such) and ease of
>> development.
>> If all of that is true, should we log a warning to the operator that they
>> are using an untested and potentially problematic storage engine (which in
>> a worst case scenario can corrupt their data)?  Should we even enable an
>> operator to change the storage engine through configuration?  I think
>> enabling that configuration is fine as long as we make sure that the
>> operator knows that they are on their own with this unsupported
>> configuration but I welcome thoughts from the group on this topic.
> Just assume MyISAM _does not exist_. It is 2013 for crying out loud.
> If somebody accidentally uses MyISAM, point at them and laugh, but then
> do help them pick up the pieces when it breaks.
> In all seriousness, if you can force the engine to InnoDB, do that.
> Otherwise, just ignore this. We are all consenting adults here and if
> people cant' RTFM on MySQL, they shouldn't be storing data in it.


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