Open Stack

Comments below..

On 2/2/2017 6:22 PM, Doug Hellmann wrote:
>> Yes, this is major undertaking and major driver for Oracle to setup a
>> 3rd party CI so that we can automate regression testing against MySQL
>> Cluster. On the flip side, it helps solve some of the challenges with
> I'm not sure we would want to gate projects on CI run outside of
> our infrastructure community. We've had some bad experiences with
> that in the past. What are the options for running MySQL Cluster
> on nodes upstream?

It shouldn't be too bad to setup MySQL Cluster. I haven't worked with 
the CI infrastructure upstream. What would it take to get it configured?

>
>> larger deployments where an active/passive solution for MySQL DB is not
>> sufficient. So the pay-off is pretty big from an availability and
>> scale-out perspective.
>>
>> But I do realize that I'll have to maintain this long-term and hopefully
>> get others to help out as more services are added to OpenStack.
> Given the scope of the work being proposed, and the level of expertise
> needed to do it, we're going to need to have more than one person
> available to debug issues before we go to far ahead with it.
>
> It might help to have an example or two of the sorts of migration
> script changes you've described elsewhere. Maybe you can prepare a
> sample patch for a project?
>
> Are there tools that can look at a table definition and tell if it
> meets the criteria for the cluster backend (the row size, types
> used, whatever else)? Or is it something one has to do by hand?

I'm working on updating my keystone patches and will put that up for 
review early next week. I'll send the link for that. Then I'll work on 
cinder next. So those two should provide good examples of what the 
patches look like.

I've been doing things by hand, but I think a tool could be developed.

> So what do you envision that I'll have to add to the oslo.db library to
> make things work as you describe? What would be the best example for me
> to build from?
> You need a function that takes the cfg.CONF instance as an argument. It
> should call register_opts() to register the option or options it uses,
> and then it can return the value. Something like:
>
> from oslo_db import options
>
> def get_db_engine_type(conf):
>      conf.register_opts(options.database_opts)
> 	return conf.database.mysql_storage_engine

I'll work on this and submit an update to the patch for oslo.db.


>
> Doug
>
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-- 

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Oracle Linux OpenStack
Mobile: +1-720-616-1550 <tel:+17206161550>
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