Single-replication topic behavior on failures

[Timur Fayruzov <ti...@gmail.com>]

Hello,

We have a number of topics with replication factor of 1 and a single
partition. I want to update the cluster from 0.10.0 to 0.10.1 by taking
nodes down one by one, but it is not clear to me what is the behavior will
be for these topics.

Brokers have topic auto-create setting set to true. When a broker that
stores singly-replicated topics goes down, what happens when some producer
decides to publish to that topic? Is a new topic created or publishing
fails?

I understand that replication factor 1 is a bad practice that can incur
data loss and I'm ok with that for the kind of data stored there.

Thanks,
Timur

Re: Single-replication topic behavior on failures

[Manikumar <ma...@gmail.com>]

I think you will get LeaderNotAvailable exception and producer requests
will fail.

On Thu, Apr 13, 2017 at 10:23 AM, Timur Fayruzov <ti...@gmail.com>
wrote:

> Hello,
>
> We have a number of topics with replication factor of 1 and a single
> partition. I want to update the cluster from 0.10.0 to 0.10.1 by taking
> nodes down one by one, but it is not clear to me what is the behavior will
> be for these topics.
>
> Brokers have topic auto-create setting set to true. When a broker that
> stores singly-replicated topics goes down, what happens when some producer
> decides to publish to that topic? Is a new topic created or publishing
> fails?
>
> I understand that replication factor 1 is a bad practice that can incur
> data loss and I'm ok with that for the kind of data stored there.
>
> Thanks,
> Timur
>