zookeeper-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Jordan Zimmerman <jor...@jordanzimmerman.com>
Subject Rolling config change considered harmful?
Date Fri, 14 Jun 2013 18:34:43 GMT
I'm trying to track a race issue in our ZK usage. In debugging, I've come to wonder if the
way we do rolling config ensemble changes is the culprit. How does ZK internal leader election
work if the list of servers is not consistent on each instance. e.g. Given 3 instances A B
C and new instance coming online D. If A and B think the server list is  (A, B, C) but C and
D think the server list is (B, C, D) how does ZooKeeper handle leader election?

View raw message