Exactly, when you start the third server, you have a majority, which causes the
leader election to complete.The election algorithm doesn't really force it to
be the third server, it is just a matter of timing.
-Flavio
On Tuesday, October 28, 2014 3:06 AM, "[email protected]" <[email protected]>
wrote:
When you start the five servers one by one, and the server 3 is the 3rd server
that you start , then you will have the server 3 as the leader always, this is
what the zookeeper election algorithm does.
[email protected]
From: Ibrahim
Date: 2014-10-28 04:04
To: zookeeper-user
Subject: Strange behaviour in Leader election
Strange behaviour in Leader election
I have 5 ZooKeeper servers. When I start running the Zookeeper, there is
always one particular machine elected as leader and the other is follower.
For example, assume we have machine 1,2,3,4, and 5. When I start the
Zookeeper, it always elects machine number 3 as leader. Note that before I
start Zookeeper I delete all DataDir and log files (information history).
I expect each new run I see different machine elect as leader. But this does
not happen.
Question:
What criteria does election algorithm use to elect a machine to become a
leader?
Thank you
Ibrahim
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