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Posted to jira@kafka.apache.org by "Onur Karaman (JIRA)" <ji...@apache.org> on 2017/11/07 21:46:01 UTC

[jira] [Assigned] (KAFKA-6146) minimize the number of triggers enqueuing PreferredReplicaLeaderElection events

     [ https://issues.apache.org/jira/browse/KAFKA-6146?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Onur Karaman reassigned KAFKA-6146:
-----------------------------------

    Assignee: Onur Karaman

> minimize the number of triggers enqueuing PreferredReplicaLeaderElection events
> -------------------------------------------------------------------------------
>
>                 Key: KAFKA-6146
>                 URL: https://issues.apache.org/jira/browse/KAFKA-6146
>             Project: Kafka
>          Issue Type: Sub-task
>    Affects Versions: 1.1.0
>            Reporter: Jun Rao
>            Assignee: Onur Karaman
>             Fix For: 1.1.0
>
>
> We currently enqueue a PreferredReplicaLeaderElection controller event in PreferredReplicaElectionHandler's handleCreation, handleDeletion, and handleDataChange. We can just enqueue the event upon znode creation and after preferred replica leader election completes. The processing of this latter enqueue will register the exist watch on PreferredReplicaElectionZNode and perform any pending preferred replica leader election that may have occurred between completion and registration.



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