Hi Luqman,

Required caches are already derived from SQL query through Ignite SQL
internals. We should just re-use this code for local queries. I filed a
ticket to fix this [1].

[1] https://issues.apache.org/jira/browse/IGNITE-7039

On Wed, Nov 22, 2017 at 12:05 AM, Luqman Ahmad <luqmanah...@gmail.com>
wrote:

> Hi Vladmir,
>
> Agree - they shouldnt be coupled togethor but what if we can set something
> in affinity api which can be read in sql api.
>
> Please correct me if I am wrong but in the affinityCall/Run we have to
> provide all the cache names and rebalancing will skip if there is already
> an operation in process. If we go with your approach not sure whether we
> can calculate all the related partitioned caches to be locked dynamically.
>
> Ofcourse you would be in a better position to comment on it but cant we
> introduce something in affinity api which can be set/read through each
> affinityCall/Run,  and the affinity api can be used inside SQL api - just
> like the same way calculating partition id for a specific key or an finding
> an atomic reference.
>
> Thanks,
> Luqman
>
>
>
> On 21 Nov 2017 20:17, "Vladimir Ozerov" <voze...@gridgain.com> wrote:
>
> Hi Luqman,
>
> I do not think SQL and compute should be coupled in the product. Instead,
> we should fix local query execution and pin partitions in the same way it
> is done for affinityCall/Run and distributed SQL.
>
> On Tue, Nov 21, 2017 at 6:25 PM, luqmanahmad <luqmanah...@gmail.com>
> wrote:
>
> > Thanks dsetrakyan,
> >
> > I would like to add a few more things over here which should be
> applicable
> > to partitioned caches.
> >
> > This context variable which is set through affinityCall or affinityRun
> > should be available through either a helper class or cache configuration.
> > There could be other advantages as well for example:
> >
> > 1. We can check the context variable in all the partitioned cache
> > operations. In department and employee example if an employee is accessed
> > without an affinityRun or affinityCall computation it should also log a
> > WARNING message or through an exception based on the cache configuration.
> >
> > 2. The user would be able to implement their own custom checks using it.
> > For
> > example, if we want to have some abstract level checks to restrict
> > developers to use specific functionality related to partitioned caches.
> >
> > Luqman
> >
> >
> >
> > --
> > Sent from: http://apache-ignite-developers.2346864.n4.nabble.com/
> >
>

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