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From Vyacheslav Daradur <daradu...@gmail.com>
Subject Re: Service grid redesign
Date Tue, 24 Jul 2018 09:44:22 GMT
No, it's doesn't complicate implementation on the current stage.

But we will have to change assignment function to forbid client nodes
even if configuration's node filter resolves them it can be not
transparent for the end user.

I think the only use case to have such behavior is: hosting of not
collocated services on data free nodes with access to IgniteCaches on
remote nodes in the same cluster.




On Tue, Jul 24, 2018 at 12:10 PM Denis Mekhanikov <dmekhanikov@gmail.com> wrote:
>
> I don't think, that client nodes, that host services make much sense.
> May we forbid it? Does anybody know, when it may be useful?
>
> Vyacheslav, does it complicate the implementation somehow?
>
> Denis
>
> вт, 24 июл. 2018 г. в 11:57, Vyacheslav Daradur <daradurvs@gmail.com>:
>
> > Hi, Igniters!
> >
> > I am close to completing the main tasks and I'm going to request a
> > review in a couple weeks.
> >
> > I have a question about the new design:
> >
> > The current implementation of Service Grid doesn't' take into account
> > Ignition#client(true).
> > It means that *clients* nodes are able to host services. There are
> > some tests that expect such behavior.
> >
> > Services assignments are managed by a predicate only
> > (ServiceConfiguration#setNodeFilter(IgnitePredicate<ClusterNode>).
> >
> > Should deployment on clients nodes be forbidden or we shouldn't mix
> > concepts for IgniteCache with Service Grid?
> >
> >
> > On Wed, Jun 20, 2018 at 1:46 AM Dmitriy Setrakyan <dsetrakyan@apache.org>
> > wrote:
> > >
> > > On Tue, Jun 19, 2018 at 1:50 PM, Vyacheslav Daradur <daradurvs@gmail.com
> > >
> > > wrote:
> > >
> > > > Hi Dmitriy,
> > > >
> > > > Yes, the task [1] is planned to be implemented once the main tasks
> > > > will be completed.
> > > >
> > > > [1] https://issues.apache.org/jira/browse/IGNITE-8367
> > >
> > >
> > > Awesome! This is a huge addition to the project.
> > >
> > >
> > > >
> > > >
> > > > On Tue, Jun 19, 2018 at 10:06 PM Dmitriy Setrakyan
> > > > <dsetrakyan@apache.org> wrote:
> > > > >
> > > > > Hi Vyacheslav,
> > > > >
> > > > > How about service redeployment in case if user wants to update the
> > code?
> > > > Is
> > > > > this planned?
> > > > >
> > > > > D.
> > > > >
> > > >
> >
> >
> >
> > --
> > Best Regards, Vyacheslav D.
> >



-- 
Best Regards, Vyacheslav D.

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