You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@zookeeper.apache.org by "Patrick Hunt (JIRA)" <ji...@apache.org> on 2012/08/01 02:38:35 UTC
[jira] [Assigned] (ZOOKEEPER-1219) LeaderElectionSupport recipe is
unnecessarily dispatching the READY_START event even if the ELECTED node
stopped/expired simultaneously.
[ https://issues.apache.org/jira/browse/ZOOKEEPER-1219?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Patrick Hunt reassigned ZOOKEEPER-1219:
---------------------------------------
Assignee: Rakesh R
> LeaderElectionSupport recipe is unnecessarily dispatching the READY_START event even if the ELECTED node stopped/expired simultaneously.
> ----------------------------------------------------------------------------------------------------------------------------------------
>
> Key: ZOOKEEPER-1219
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-1219
> Project: ZooKeeper
> Issue Type: Improvement
> Components: recipes
> Affects Versions: 3.3.3
> Reporter: Rakesh R
> Assignee: Rakesh R
> Fix For: 3.5.0
>
> Attachments: ZOOKEEPER-1219.patch
>
>
> Let's say node has determined as READY and has dispatched DETERMINE_COMPLETE event, at the same time the ELECTED node got stopped or expired . Still the f/w first dispatches the READY_START event to the node and then checks whether the ELECTED node exists() or not. Here it finds there is no 'Stat' corresponding to ELECTED and will again goes to leader determination phase.
> *Problem:*
> Unnecessarily the READY_START event is dispatching to the node and says node to be ready with the startup/init, even if there is no ELECTED node.
> *Proposal*
> Reverse the logic, first check whether ELECTED node exists() or not and then if success f/w can dispatch the READY_START event. Otherwise go to the leader determination phase.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira