Great, thanks for the info!

Michael Golowka
________________________________________
From: Neha Narkhede [neha.narkh...@gmail.com]
Sent: Friday, April 19, 2013 4:04 PM
To: users@kafka.apache.org
Subject: Re: Consumers vs Partitions

sum of all partitions across multiple brokers, so 20.

Thanks,
Neha

On Fri, Apr 19, 2013 at 2:56 PM, Michael Golowka
<michael.golo...@returnpath.com> wrote:
> Is the number of partitions calculated based on an individual broker, or a 
> sum of all partitions across multiple brokers? For instance, if I have 2 
> brokers with 10 partitions each, is the maximum active consumers 10 or 20?
>
> Michael Golowka
> ________________________________________
> From: Neha Narkhede [neha.narkh...@gmail.com]
> Sent: Friday, April 19, 2013 3:53 PM
> To: users@kafka.apache.org
> Subject: Re: Consumers vs Partitions
>
> That is correct, you cannot have more active consumers than the total
> # of partitions.
>
> Thanks,
> Neha
>
> On Fri, Apr 19, 2013 at 2:30 PM, Michael Golowka
> <michael.golo...@returnpath.com> wrote:
>> What is the relationship between topic partitions and consumers? From what 
>> I've read and experimented with, the number of partitions limits the number 
>> of active consumers in a given consumer group on a given topic. So if the 
>> number of partitions is 10, and the number of consumers is 12 (all in the 
>> same group), 2 consumers will not receive any data unless one of the active 
>> consumers dies. Is this correct? Is there a way that you can have more 
>> consumers than partitions?
>>
>> Thanks!
>>
>>
>> Michael Golowka

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