David Ross 2013-01-08, 06:24
Jun Rao 2013-01-08, 20:43
-Re: Best practices for changing partition numbers
David Ross 2013-01-08, 21:24
Yeah that makes sense, but what if we do need to change the number of
partitions? What if we need to reduce it?
On Tue, Jan 8, 2013 at 12:42 PM, Jun Rao <[EMAIL PROTECTED]> wrote:
> If you don't have a lot of topics, one thing you can do is to
> over-partition a topic.
> Also, in 0.7, # of partitions grows with brokers. This is going to change
> in 0.8, in which # of partitions is specified at topic creation time and
> won't change as brokers change. One needs to use an admin DDL to change #
> of partitions.
> On Mon, Jan 7, 2013 at 10:23 PM, David Ross <[EMAIL PROTECTED]> wrote:
> > Hello,
> > We have found that, for our application, having a number of total
> > partitions as a multiple of the number of consumer hosts is beneficial.
> > Because of this, whenever we add or remove consumer hosts, we have to
> > change the number of partitions in the server config.
> > What are best practices for changing the number of partitions? It seems
> > like adding partitions is fine but removing partitions would result in
> > loss - am I right? Is that avoidable? Is it preferable to bring in new
> > servers with new partitions? Anything else I should keep in mind on this
> > issue?
> > Thanks!
> > David
Corbin Hoenes 2013-01-08, 21:41
David Ross 2013-01-09, 00:26
Jun Rao 2013-01-09, 05:17