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Posted to dev@zookeeper.apache.org by Wang Yang <zj...@gmail.com> on 2012/09/26 07:23:03 UTC
More than one QuorumPeer start leader election
Hi,
I'm reading the source code of zk these days. And first, can I ask
some question about source code in this mail list?
And my question seems foolish:
I find there can be more than one QuorumPeer start leader election. Am
I right? And the Fast Paxos can ensure the election correct under this
situation, is it right?
Thanks!
Lory_yang
Re: More than one QuorumPeer start leader election
Posted by Flavio Junqueira <fp...@yahoo-inc.com>.
Hi Lory_yang, Thanks for asking questions. As I understand your question, you're asking about leader election, which we call FLE (Fast Leader Election). The idea is to select one server out of a pool of available servers. Each server (or peer) will have a QuorumPeer started, so it does allow multiple QuorumPeer instances started. In fact, without a quorum of peers, election won't terminate.
-Flavio
On Sep 26, 2012, at 7:23 AM, Wang Yang wrote:
> Hi,
>
> I'm reading the source code of zk these days. And first, can I ask
> some question about source code in this mail list?
>
> And my question seems foolish:
> I find there can be more than one QuorumPeer start leader election. Am
> I right? And the Fast Paxos can ensure the election correct under this
> situation, is it right?
>
> Thanks!
> Lory_yang