[
https://issues.apache.org/jira/browse/ZOOKEEPER-1036?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Flavio Junqueira resolved ZOOKEEPER-1036.
-----------------------------------------
Resolution: Not A Problem
Sounds like we have converged. Closing again.
> send UPTODATE to follower until a quorum of servers synced with leader
> ----------------------------------------------------------------------
>
> Key: ZOOKEEPER-1036
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-1036
> Project: ZooKeeper
> Issue Type: Bug
> Components: server
> Reporter: jiangwen wei
>
> 1. current process
> when leader fail, a new leader will be elected, followers will sync with the
> new leader.
> After synced, leader send UPTODATE to follower.
> 2. a corner case
> but there is a corner case, things will go wrong.
> suppose message M only exists on leader, after a follower synced with
> leader, the client connected to the follower will see M.
> but it only exists on two servers, not on a quorum of servers. If the new
> leader and the follower failed, message M is lost, but M is already seen by
> client.
> 3. one solution
> So I think UPTODATE can be sent to follower only when a quorum of server
> synced with the leader.
--
This message is automatically generated by JIRA.
For more information on JIRA, see: http://www.atlassian.com/software/jira
