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https://issues.apache.org/jira/browse/KAFKA-18680?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jonah Hooper resolved KAFKA-18680.
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Resolution: Fixed
Created a design for this and started the initial implementation.
> Design unclean recovery elections subsystem
> -------------------------------------------
>
> Key: KAFKA-18680
> URL: https://issues.apache.org/jira/browse/KAFKA-18680
> Project: Kafka
> Issue Type: Sub-task
> Reporter: Jonah Hooper
> Assignee: Jonah Hooper
> Priority: Major
> Original Estimate: 168h
> Remaining Estimate: 168h
>
> There must be a subsystem within the controller which handles UncleanRecovery
> based on the two new strategies (balanced and aggressive) outlined in KIP-966.
> The controller currently has no ability to reach out to brokers for any
> reason. Generally there is a "pull" model where brokers poll controllers for
> updates.
> In the case of Unclean recovery, controllers will poll brokers for
> information about their replicas.
> The new subsystem will need to keep track of these outgoing requests and the
> remaining time required to make a decision about the election based on the
> given strategy.
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