You can deploy services to client nodes, for example:
val service = ignite.services(ignite.cluster().forClients())
service.deployClusterSingleton("TestService", new TestServiceImpl())
If you want to have independent clients, as you currently have, I suspect you’d
have to implement your own fail over mechanism.
Regards,
Stephen
> On 17 Oct 2019, at 10:37, SunSatION <[email protected]> wrote:
>
> I don't wish to deploy the client code onto each and every server as we would
> like to keep the separation between business logic and data. Additionally, we
> are pushing the changes to Kafka and therefore not sure if it's heavy to
> perform the push the Service grid
>
> On Wed, Oct 16, 2019 at 6:02 PM Stephen Darlington
> <[email protected] <mailto:[email protected]>>
> wrote:
> Your clients don’t “know” about each other, so, yes, they’re going to
> duplicate work. Could you use the Service Grid to run your client? That way
> it would fail over automatically.
>
> Regards,
> Stephen
>
> > On 16 Oct 2019, at 16:04, SunSatION <[email protected]
> > <mailto:[email protected]>> wrote:
> >
> > Hi,
> >
> > We have a scenario where we're using Ignite Kafka Datastream to write to
> > cache which are setup using PARTITIONED affinity. We're using continuous
> > queries to identify changes to each cache entry and perform an action if the
> > entry changes which are running on the client. We have 3 server nodes and 3
> > client nodes for HA. The problem is that all clients are receiving the cache
> > changes and the action is performed 3 times, once for each client. We are
> > unable to use the affinity key of the cache entry as it returns the id of
> > the server nodes.
> >
> > Any ideas on the a way that the action is performed once without the client
> > nodes knowing of each other?
> >
> > Thanks,
> > Dorian
> >
> >
> >
> > --
> > Sent from: http://apache-ignite-users.70518.x6.nabble.com/
> > <http://apache-ignite-users.70518.x6.nabble.com/>
>
>
>
>
> --
> Two things are infinite: the universe and the human stupidity; and I'm not
> sure about the universe - Albert Einstein
