On 09/04/2014 10:33 AM, Dugger, Donald D wrote:
Basically +1 with what Daniel is saying (note that, as mentioned, a
side effect of our effort to split out the scheduler will help but
not solve this problem).
The difference between Dan's proposal and the Gantt split is that Dan's
proposal features quite prominently the following:
== begin ==
- The nova/virt/driver.py class would need to be much better
specified. All parameters / return values which are opaque dicts
must be replaced with objects + attributes. Completion of the
objectification work is mandatory, so there is cleaner separation
between virt driver impls & the rest of Nova.
== end ==
In other words, Dan's proposal above is EXACTLY what I've been saying
needs to be done to the interfaces between nova-conductor, nova-compute,
and nova-scheduler *before* any split of the scheduler code is even
remotely feasible.
Splitting the scheduler out before this is done would actually not "help
but not solve this problem" -- it would instead further the problem, IMO.
Best,
-jay
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