Hi Barry,

1) OptimizeForWrite returns true.

2)
FunctionService.onRegion(event.getRegion()).withArgs(id).execute(DeleteCollectedKeysFunction.ID);
​

idabove helps to retrieve the set of keys inside the DeleteCollectedKeys
 funciton.

Thanks.





On Mon, May 1, 2017 at 5:17 PM Barry Oglesby <bogle...@pivotal.io> wrote:

> Are you passing the keys as a filter or an argument? What does
> optimizeForWrite in your function return?
>
> Thanks,
> Barry Oglesby
>
>
> On Mon, May 1, 2017 at 4:41 PM, Goutam Tadi <gt...@pivotal.io> wrote:
>
> > Hi Dan,
> >
> > Thanks for the reply.
> > No, we are neither executing the function nor passing keys from a client.
> > We are trying to remove a significant portion of the keys from a region
> > (most, but not all) at once.
> >
> > Thanks.
> >
> > On Mon, May 1, 2017 at 2:40 PM Dan Smith <dsm...@pivotal.io> wrote:
> >
> > > That seems like it should do things fairly quickly. Are you executing
> the
> > > function from a client? Did you find that using a function was actually
> > > faster than just calling removeAll from the client? I think removeAll
> > from
> > > the client should send your keys in a single message, similar to your
> > > function approach.
> > >
> > > How many keys are you trying to remove? If you have a really large
> number
> > > of keys, it might be better to batch up the keys. You could do multiple
> > > removeAlls from the client, perhaps even in parallel.
> > >
> > > -Dan
> > >
> > > On Mon, May 1, 2017 at 12:19 PM, Goutam Tadi <gt...@pivotal.io> wrote:
> > >
> > > > Hi Team,
> > > >
> > > > With +Bradford D Boyle <bbo...@pivotal.io>
> > > >
> > > > We are trying to remove a set of keys from a `PartitionedRegion`.
> > > > Currently, we execute a function with `onRegion()`. Inside the
> > function,
> > > we
> > > > call `PartitionRegionHelper.getLocalPrimaryData()` and use the
> > returned
> > > > region to execute `region.removeAll(keys)`.
> > > >
> > > > The problem we are facing is that is slow. Is there a faster way to
> > > remove
> > > > a set of keys from a partitioned region?
> > > >
> > > > We are considering using `getDataStore().getAllLocalBucketRegions()`
> > to
> > > > get
> > > > the set of `BucketRegion`s and then using a thread pool to remove the
> > > keys
> > > > in parallel. Are there alternative approaches?
> > > >
> > > > Thanks,
> > > > Goutam Tadi.
> > > > --
> > > > Regards,
> > > > *Goutam Tadi.*
> > > >
> > >
> > --
> > Regards,
> > *Goutam Tadi.*
> >
>
-- 
Regards,
*Goutam Tadi.*

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