You can start a transaction in the stream receiver to make it atomic.

On Fri, Jun 29, 2018, 1:02 PM breischl <[email protected]> wrote:

> StreamTransformer does an invoke() pretty much exactly like what I'm doing,
> so that would not seem to change anything.
>
>
> https://github.com/apache/ignite/blob/master/modules/core/src/main/java/org/apache/ignite/stream/StreamTransformer.java#L50-L53
>
>
>
> I may try using a put(), but since I need to compare the existing cache
> value, I'd need to get(), compare, then put(). I thought that may open up a
> potential race condition, if two different updates happen close to each
> other they could each do get(), then each do put(), but potentially in the
> wrong order. Unless there's some locking I don't understand there?
>
>
>
> --
> Sent from: http://apache-ignite-users.70518.x6.nabble.com/
>
>

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