Just to clarify. Even though # partition is a config property of a topic,
it has to be done through the add partition admin command. Other topic
level config changes can be made through "kafka-topics.sh --alter" in 0.8.1
(trunk).

Thanks,

Jun


On Tue, Dec 3, 2013 at 3:56 PM, Jay Kreps <jay.kreps@gmail.com> wrote:

> 0.8 includes the partition increasing tool. 0.8.1 makes all per-topic
> configuration dynamic and updatable via a command line tool.
>
> -Jay
>
>
> On Tue, Dec 3, 2013 at 1:23 PM, Yu, Libo <libo.yu@citi.com> wrote:
>
> > Hi Neha,
> >
> > "0.8.1 includes the ability to dynamically change per topic configs."
> > Do you mean number of partitions or retention size?
> >
> > Regards,
> >
> > Libo
> >
> >
> > -----Original Message-----
> > From: Neha Narkhede [mailto:neha.narkhede@gmail.com]
> > Sent: Tuesday, December 03, 2013 1:25 PM
> > To: users@kafka.apache.org
> > Subject: Re: set new retention size on the fly
> >
> > For adding partitions, look at
> >
> >
> https://cwiki.apache.org/confluence/display/KAFKA/Replication+tools#Replicationtools-5.AddPartitionTool
> > 0.8.1 includes the ability to dynamically change per topic configs.
> >
> > Thanks,
> > Neha
> >
> >
> > On Tue, Dec 3, 2013 at 10:21 AM, Yu, Libo <libo.yu@citi.com> wrote:
> >
> > > Hi folks,
> > >
> > > For 0.8, it is possible to add a partition dynamically. Is it possible
> > > to increase the retention size on the fly? This feature will be very
> > > useful for operation. I know rolling start can pick up the change but
> > > it takes too much effort. Thanks.
> > >
> > > Libo
> > >
> > >
> >
>