Your understanding is correct. Try running the tool again when both
replicas are in ISR. If it still doesn't work, see if there is any error in
the state-change log.

Thanks,

Jun


On Tue, Aug 27, 2013 at 8:00 AM, Yu, Libo <libo...@citi.com> wrote:

> Hi,
>
> We have three brokers in our kafka cluster. For all topics, the replica
> factor is two.
> Here is the distribution of leaders. After I ran the leader election tool,
> nothing
> happened. In this list, the first broker in ISR is the leader. I assume
> after running
> the tool, the first broker is replicas should be elected to the leader.
>  Any idea why
> this does not work? Thanks.
>
> topic: example.topic.one      partition: 0    leader: 1       replicas:
> 2,1      isr: 1,2
> topic: example.topic.one      partition: 1    leader: 2       replicas:
> 3,2      isr: 2,3
> topic: example.topic.one      partition: 2    leader: 1       replicas:
> 1,3      isr: 1,3
> topic: example.topic.twopartition: 0    leader: 1       replicas: 3,1
>  isr: 1,3
> topic: example.topic.twopartition: 1    leader: 1       replicas: 1,2
>  isr: 1,2
> topic: example.topic.twopartition: 2    leader: 2       replicas: 2,3
>  isr: 2,3
>
> Regards,
>
> Libo
>
>

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