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From Dmitriy Setrakyan <dsetrak...@apache.org>
Subject Re: Service grid redesign
Date Tue, 24 Jul 2018 11:19:21 GMT
By default the client nodes should be excluded form service deployment. The
only way to include clients is to explicitly specify them through node
filter. This is how services are deployed today and we should preserve this
behavior.

D.

On Tue, Jul 24, 2018 at 11:20 AM, Denis Mekhanikov <dmekhanikov@gmail.com>
wrote:

> Maybe let's keep the functionality the way it is, since it doesn't
> interfere with the IEP?
>
> But I think, it's worth mentioning as a warning in log, that a service is
> deployed on a client node.
>
> Denis
>
> вт, 24 июл. 2018 г. в 12:44, Vyacheslav Daradur <daradurvs@gmail.com>:
>
> > 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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