Hi Denis,

What do you think about some improvements in @IgniteAsyncCallback regarding 
usability? What if we add a number of threads parameter in @IgniteAsyncCallback?

Best regards,
Roman

-----Original Message-----
From: Denis Magda <dma...@apache.org> 
Sent: Friday, June 26, 2020 7:38 PM
To: dev <dev@ignite.apache.org>
Subject: Re: Continuous Queries with several remote filter on the same cache

Roman,

The updates are ordered per partition. Let's take this example of an 
application updating several records:

put (k1, val1) => mapped to partition_10 => node_A put (k2, val2) => mapped to 
partition_5 => node_B put (k3, val3) => mapped to partition_10 => node_A

It's guaranteed that a continuous query listener will be notified about k1 and 
k3 updates in this order - k1 first and k3 after. As for the k2 update, it can 
arrive at any time (i.e., before k1, after k3 or in the middle).




-
Denis


On Fri, Jun 26, 2020 at 12:58 AM <roman.koria...@t-systems.com> wrote:

> Hi Denis,
>
> Thanks! Is there some guarantee about the order of the updates? Even 
> when we have multiple cache nodes.
>
> Best regards,
> Roman
>
> -----Original Message-----
> From: Denis Magda <dma...@apache.org>
> Sent: Monday, June 8, 2020 10:20 PM
> To: dev <dev@ignite.apache.org>
> Subject: Re: Continuous Queries with several remote filter on the same 
> cache
>
> Roman,
>
> Please check the following methods:
> * CacheContiniousQueryHandler (the filter usage):
>
> https://github.com/apache/ignite/blob/6955ac291352dd67c1f84a006cda512e
> e54f38bb/modules/core/src/main/java/org/apache/ignite/internal/process
> ors/cache/query/continuous/CacheContinuousQueryHandler.java#L994
> * CacheContinuousQueryManager (the listener execution):
>
> https://github.com/apache/ignite/blob/master/modules/core/src/main/jav
> a/org/apache/ignite/internal/processors/cache/query/continuous/CacheCo
> ntinuousQueryManager.java#L376
>
> -
> Denis
>
>
> On Sun, Jun 7, 2020 at 12:19 AM <roman.koria...@t-systems.com> wrote:
>
> > Hi Denis,
> > A big thank you for the answer.
> > Could you please tell me where can I find this logic in the sources.
> > Which package should I look into?
> >
> > -----Original Message-----
> > From: Denis Magda <dma...@apache.org>
> > Sent: Saturday, June 6, 2020 2:07 AM
> > To: dev <dev@ignite.apache.org>
> > Subject: Re: Continuous Queries with several remote filter on the 
> > same cache
> >
> > Hi Roman,
> >
> > Every continuous query is a unique entity that is processed by 
> > servers independently. With your example, the server node will 
> > execute all 20 filters for every cache insert/update operation. The 
> > server will notify through local listeners only those clients whose 
> > remote filters returned 'true'.
> >
> > -
> > Denis
> >
> >
> > On Thu, Jun 4, 2020 at 8:44 PM <roman.koria...@t-systems.com> wrote:
> >
> > > Hi Community,
> > >
> > > I ask this question here because I haven't found the answer in the 
> > > documentation.
> > >
> > > Could you please clarify how Continuous Queries work? What the 
> > > behavior of Continuous Queries if we have several clients with 
> > > different Remote Filters on the same cache? For example, if we have:
> > > one server node with cache and we have up to 20 client nodes each 
> > > of them will execute Continuous Query on the same cache but with 
> > > different Remote Filters. Will each client get the data according 
> > > to its remote filter? Or it is supposed to have only one Remote 
> > > Filter for all clients and every client should filter data in its 
> > > local event
> > listener?
> > > I would be grateful if you send some link which describes the 
> > > behavior of Continuous Queries more thoroughly.
> > > Best regards,
> > > Roman
> > >
> >
>

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