Thanks, Jun. That is exactly what I want to know.
Libo
> Date: Thu, 23 Oct 2014 17:53:24 -0700
> Subject: Re: a questions about 0.8.1 async publishing
> From: jun...@gmail.com
> To: users@kafka.apache.org
>
> The new java producer to be released in 0.8.2 supports a callback on each
> message sent asynchronously.
>
> Thanks,
>
> Jun
>
> On Thu, Oct 23, 2014 at 3:26 PM, Libo Yu <yu_l...@hotmail.com> wrote:
>
> > Hi,
> >
> > If I use async publishing plus message acknowledgement,
> > is there any API to tell when all the messages in the queue
> > have been sent out?
> >
> > This will be used in the shutdown hook to make sure when
> > the process is down there is no pending messages to be
> > published.
> >
> > Thanks,
> >
> > Libo
> >
