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From "Macoy Jones (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (KAFKA-6206) Kafka processes ignore read/write performance and reliability
Date Tue, 14 Nov 2017 04:21:00 GMT

     [ https://issues.apache.org/jira/browse/KAFKA-6206?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Macoy Jones updated KAFKA-6206:
    Affects Version/s:

> Kafka processes ignore read/write performance and reliability
> -------------------------------------------------------------
>                 Key: KAFKA-6206
>                 URL: https://issues.apache.org/jira/browse/KAFKA-6206
>             Project: Kafka
>          Issue Type: Improvement
>          Components: replication
>    Affects Versions:,
>         Environment: RHEL 6.8
>            Reporter: Macoy Jones
>            Priority: Minor
> According to the documentation, for a leader to be considered alive, it must be able
to maintain its session with ZooKeeper via ZooKeeper's heartbeat mechanism. 
> As this criteria stands, a leader will continue to attempt to fulfill the read/write
requests for in-sync replicas without taking into account resource availablity, performance
factors, or hardware/application health. This introduces the risk of unchecked degradation
to the performance and/or reliability of data read/write operations to a subset of data sources
in the event of a server problem, and the risk grows with partition leader density
> A viable solution to this may be some type of logic that allows a leader to be blacklisted
as such if it fails to read/write beyond a configurable baseline.

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