Fathima,

In 0.11 there will be such a mechanism (see KIP-98), but in current
versions, you have to eat the duplicates if you want to not lose messages.

On Wed, May 17, 2017 at 5:31 AM, Fathima Amara <fath...@wso2.com> wrote:

> Hi Mathieu,
>
> Thanks for replying. I've already tried by setting "retries" to higher
> values(maximum up to 3). Since this introduces duplicates which I do not
> require, I brought the "retries" value back to 0. I would like to know
> whether there is a way to achieve "exactly-once" guarantee having increased
> the retires value?
>
> Fathima
>

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