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Thanks for the expanation, Elisha. I understand the design now.

But I could not find the statement which enables the evaluator after
initial phase.

Could you help to point it out?
--
Yujun

On Thu, Aug 11, 2016 at 11:42 PM Rosensweig, Elisha (Nokia - IL) <
elisha.rosensweig at nokia.com> wrote:

> This is on purpose.
>
> When Vitrage is started, it first runs a "consistency" round where it gets
> all the resources from its datasources and inserts them into the entity
> graph. Once this initial phase is over, the evaluator is run over all the
> entity graph to check for meaningful patterns based on it's templates.
>
> The reason for this process is to avoid too much churn during the initial
> phase when Vitrage comes up. With so many changes done to the entity graph,
> it's best to wait for the initial collection phase to finish and then to do
> the analysis.
>
> Elisha
>
> > From: Yujun Zhang [mailto:zhangyujun+zte at gmail.com]
> > Sent: Thursday, August 11, 2016 5:49 PM
> > To: OpenStack Development Mailing List (not for usage questions)
> > Subject: Re: [openstack-dev] [vitrage] scenario evaluator not enabled by
> default
> >
> > Sorry for having put a url from forked repo. It should be
> https://github.com/openstack/vitrage/commit/bdba10cb71b2fa3744e4178494fa860303ae0bbe#diff>
> -6f1a277a2f6e9a567b38d646f19728bcL36
>
> > But the content is the same
> > --
> > Yujun
>
> > On Thu, Aug 11, 2016 at 10:43 PM Yujun Zhang <zhangyujun+zte at gmail.com>
> wrote:
> > It seems the scenario evaluator is not enabled when vitrage is started
> in devstack installer.
> >
> > I dig a bit in the history, it seems the default value for the evaluator
> is changed from True to False > in a history commit [1].
> >
> > Is it breaking the starting of evaluator or I have missed some steps to
> enable it explictily?
> >
> > - [1]
> https://github.com/openzero-zte/vitrage/commit/bdba10cb71b2fa3744e4178494fa860303ae0bbe#diff-
> 6f1a277a2f6e9a567b38d646f19728bcL36
>
> > --
> > Yujun
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