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Kafka >> mail # user >> No leaders elected after topics created


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Re: No leaders elected after topics created
I only need to delete topics when I want to start from clean state.
I still unclear why leaders were not elected after create script printed
message that topic was created successfully

Thanks,
Vadim

On Thu, Aug 22, 2013 at 12:28 PM, Neha Narkhede <[EMAIL PROTECTED]>wrote:

> I see the issue. I think the 0.8-beta included the script, but we later
> removed it. We still don't have support for the delete topic feature, so I
> recommend not using it.
>
> How long did you wait for the leaders to get elected before you attempted
> to delete the topics?
>
> Thanks,
> Neha
>
>
> On Thu, Aug 22, 2013 at 11:30 AM, Vadim Keylis <[EMAIL PROTECTED]
> >wrote:
>
> > Hello Neha. The topics should of been available since I ran list-topics
> > script 5 hours later after creating topics.
> > I am reffering to kafka-delete-topic.sh script that I got from kafka git
> > repository.
> >
> > Thanks,
> > Vadim
> >
> >
> > On Thu, Aug 22, 2013 at 11:05 AM, Neha Narkhede <[EMAIL PROTECTED]
> > >wrote:
> >
> > > As part of topic creation, the controller broker has to elect leader
> for
> > > each of the topics and this involves a few writes to zookeeper. So it
> > might
> > > take several seconds to complete leader election for 300 topics and
> that
> > > time would increase if you have many partitions per topic.
> > >
> > > Which delete partition script are you referring to? We don't have a
> > delete
> > > topic feature in Kafka yet. So you can only create more partitions, but
> > not
> > > delete them.
> > >
> > > Thanks,
> > > Neha
> > >
> > >
> > > On Thu, Aug 22, 2013 at 10:01 AM, Vadim Keylis <[EMAIL PROTECTED]
> > > >wrote:
> > >
> > > > I ran command to create 300 topics sequentially. Kafka create topic
> > > script
> > > > return with topic created successfully message. However running
> > > > kafka-list-topics.sh script showed to me that no leaders been
> selected
> > > and
> > > > no servers listed in ISR. First inspection of the logs showed no
> > obvious
> > > > signs of the problem. After restarting kafka. I did a few restarts of
> > > kafka
> > > > service and its now showing that most partitions have brokers.
> > > >
> > > > Second issue is with delete partition script. I attempted to delete
> > > topics
> > > > to begin fresh start.  Even those script says it deleted partition
> > > > successfully, I still see no leader found exception.
> > > >
> > > >  Any suggestions on whats going on and how to avoid in the future?
> > > >
> > >
> >
>