-Re: Questions about the leader election
James Wu 2013-08-23, 10:38
Thank you Neha, it's very helpful information!
I also read this article
For the section "Handling Failures", I am wondering some questions:
1. "The leader and the ISR for each partition are also stored in Zookeeper
and are used during the failover of the controller." What path does it be
stored ? Is there any way to see the information on zookeeper ?
2. If the controller fail, how does the new controller be elected ? Does it
be elected by Zookeeper ? How does Zookeeper decide which node should be
the controller ?
On Fri, Aug 23, 2013 at 11:59 AM, Neha Narkhede <[EMAIL PROTECTED]>wrote:
> The replication state machine and leader election mechanism is described
> here - http://kafka.apache.org/documentation.html#replication
> Let us know how the docs can be improved.
> On Thu, Aug 22, 2013 at 8:51 PM, James Wu <[EMAIL PROTECTED]> wrote:
> > Hi,
> > I am wondering what is the mechanism that Kafka elects the leader of
> > partitions ?
> > Does it handle by the controller process or ?
> > If the leader crashed, who will decide the new leader ? and the process
> > running on Zookeeper or Kafka?
> > Thanks.
> > --
> > --
> > Friendly regards,
> > *James Wu <http://www.facebook.com/jameswu629>*
*James Wu <https://plus.google.com/u/0/100829801349304669533>