Jun, the question is whether or not you can increase the replication factor
of a partition through the partition reassignment tool or not. I think you
can but I'm not sure until I test this.

Thanks,
Neha


On Thu, May 9, 2013 at 7:58 AM, Jun Rao <junrao@gmail.com> wrote:

> Currently, we don't allow the replication factor of an existing
> topic/partition to be changed. We plan to add a tool to do that in the
> future.
>
> Thanks,
>
> Jun
>
>
> On Wed, May 8, 2013 at 11:52 PM, Jason Rosenberg <jbr@squareup.com> wrote:
>
> > so does that, thereby, allow you to increase the replication for a
> > partition?
> >
> >
> > On Wed, May 8, 2013 at 10:48 PM, Neha Narkhede <neha.narkhede@gmail.com
> > >wrote:
> >
> > > If you add more brokers to an existing cluster, you can use the
> partition
> > > reassignment admin tool to move a replica of selected partitions over
> to
> > > the new broker.
> > >
> > > Thanks,
> > > Neha
> > >
> > >
> > > On Wed, May 8, 2013 at 10:27 PM, Jason Rosenberg <jbr@squareup.com>
> > wrote:
> > >
> > > > It looks like by default, the first time a new message arrives for a
> > > given
> > > > topic, it will receive the default replication factor in place on the
> > > > broker at the time it is first received.
> > > >
> > > > Is it possible to change this later (e.g. say if we add more hardware
> > to
> > > > the cluster at a later date, etc.)?
> > > >
> > > > Thanks,
> > > >
> > > > Jason
> > > >
> > >
> >
>