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OK, so, we aren’t generally running neutron tests w/ MySQL + InnoDB, right?    I happen to be running them locally against a MySQL that defaults to InnoDB.  And I’m trying to see if it’s deadlocking or not as I’m not able to get through them.   All the eventlet + MySQLdb deadlock issues won’t be apparent with MyISAM.   




On Jul 21, 2014, at 11:55 AM, Roman Podoliaka <rpodolyaka at mirantis.com> wrote:

> Aha, makes sense. Yeah, this means we miss such a check at least in
> Neutron and should add one to the test suite. Thanks!
> 
> On Mon, Jul 21, 2014 at 6:34 PM, Clark Boylan <clark.boylan at gmail.com> wrote:
>> 
>> On Jul 21, 2014 8:28 AM, "Roman Podoliaka" <rpodolyaka at mirantis.com> wrote:
>>> 
>>> Hi all,
>>> 
>>> To my surprise I found that we default to using MyISAM in the gate
>>> [1], while InnoDB would be a much more suitable choice, which people
>>> use in production deployments (== we should test it in the gate). This
>>> means, that every table, for which we haven't explicitly specified to
>>> use InnoDB, will be created using MyISAM engine, which is clearly not
>>> what we want (and we have migration scripts at least in Neutron which
>>> don't specify InnoDB explicitly and rely on MySQL configuration
>>> value).
>>> 
>>> Is there any specific reason we default to MyISAM? Or I should submit
>>> a patch changing the default storage engine to be InnoDB?
>>> 
>> We want projects to force the use of innodb over myisam. To test this the
>> gate defaults to myisam and should check that innodb is used instead by the
>> projects. So this is very intentional.
>> 
>> Are we missing those checks in places?
>> 
>> 
>>> 
>>> Thanks,
>>> Roman
>>> 
>>> [1]
>>> https://github.com/openstack-infra/config/blob/master/modules/openstack_project/manifests/slave_db.pp#L12
>>> 
>>> _______________________________________________
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>>> OpenStack-dev at lists.openstack.org
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>> 
>> Clark
>> 
>> 
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> 
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