openstack team mailing list archive

[Everett Toews <everett.toews@xxxxxxxxx>]

Hi Kevin,

Overall I really like what you're proposing here. Conceptually this seems
like a comprehensive and scalable solution to the quota issue in OpenStack.

I have a number of questions on it.

Were you envisioning Boson going through the incubation process and
becoming a core project in OpenStack?

If that were to happen, would Boson become a required dependency for all of
the other OpenStack projects (that require quotas)?

Would it be possible to run OpenStack without Boson?

My main concern here is the cost of the complexity of adding another
service to deploy and maintain. But, one way or another, obviously
something needs to be done about quotas.

Speaking of deployment and maintenance complexity...the Data Storage
section reads,

"It is also necessary to be able to search for a given Usage or Reservation
based on some or all of the key/value pairs, so that usage information may
be obtained and easily displayed to the user. This latter requirement may
indicate that a NoSQL solution is the best for Boson's backend."

Setting aside any SQL/NoSQL religious debate or even the "best tool for the
job" argument, I think you'd find this to be a hard sell to the operations
crowd. Nobody is going to want to have all of their OpenStack data in an
SQL DB (which they may have already gone through the trouble to make HA)
but then have just the quota data in a NoSQL DB.

I would urge you to consider starting with SQL and then make NoSQL an
option if there is demand for it.

Regards,
Everett

On Tue, Jul 17, 2012 at 9:44 AM, Kevin L. Mitchell <
kevin.mitchell@xxxxxxxxxxxxx> wrote:

> I recently thought about and wrote up a concept for a distributed quota
> manager that I have dubbed "Boson."  Unfortunately, higher priorities at
> Rackspace have kept me from working on it, so I wanted to get the
> proposal out there for others to comment and cogitate on.  The writeup
> is at http://wiki.openstack.org/Boson
> --
> Kevin L. Mitchell <kevin.mitchell@xxxxxxxxxxxxx>
>
>
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