Open Stack

On 5 February 2015 at 23:07, Clint Byrum <clint at fewbar.com> wrote:

> Excerpts from Avishay Traeger's message of 2015-02-04 22:19:53 -0800:
> > On Wed, Feb 4, 2015 at 11:00 PM, Robert Collins <
> robertc at robertcollins.net>
> > wrote:
> >
> > > On 5 February 2015 at 10:24, Joshua Harlow <harlowja at outlook.com>
> wrote:
> > > > How interesting,
> > > >
> > > > Why are people using galera if it behaves like this? :-/
> > >
> > > Because its actually fairly normal. In fact its an instance of point 7
> > > on https://wiki.openstack.org/wiki/BasicDesignTenets - one of our
> > > oldest wiki pages :).
> > >
> >
> > When I hear MySQL I don't exactly think of eventual consistency (#7),
> > scalability (#1), horizontal scalability (#4), etc.
> > For the past few months I have been advocating implementing an
> alternative
> > to db/sqlalchemy, but of course it's a huge undertaking.  NoSQL (or even
> > distributed key-value stores) should be considered IMO.  Just some food
> for
> > thought :)
> >
>
> I know it is popular to think that MySQL* == old slow and low-scale, but
> that is only popular with those who have not actually tried to scale
> MySQL. You may want to have a chat with the people running MySQL at
> Google, Facebook, and a long tail of not quite as big sites but still
> massively bigger than most clouds. Note that many of the people who
> helped those companies scale up are involved directly with OpenStack.
>
> Just an aside: Youtube relies completely on MySQL for all of it's database
traffic, but uses a layer on top of it called Vitess [1] to allow it to
scale.

[1]: https://github.com/youtube/vitess


> The NoSQL bits that are popular out there make the easy part easy. There
> is no magic bullet for the hard part, which is when you need to do both
> synchronous and asynchronous. Factor in its maturity and the breadth of
> talent available, and I'll choose MySQL for this task every time.
>
> * Please let's also give a nod to our friends working on MariaDB, a
>   MySQL-compatible fork that many find preferrable and for the purposes
>   of this discussion, equivalent.
>
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