[jira] [Updated] (KAFKA-1461) Replica fetcher thread does not implement any back-off behavior

["Sriharsha Chintalapani (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/KAFKA-1461?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sriharsha Chintalapani updated KAFKA-1461:
------------------------------------------
    Attachment: KAFKA-1461.patch

> Replica fetcher thread does not implement any back-off behavior
> ---------------------------------------------------------------
>
>                 Key: KAFKA-1461
>                 URL: https://issues.apache.org/jira/browse/KAFKA-1461
>             Project: Kafka
>          Issue Type: Improvement
>          Components: replication
>    Affects Versions: 0.8.1.1
>            Reporter: Sam Meder
>            Assignee: Sriharsha Chintalapani
>              Labels: newbie++
>             Fix For: 0.8.3
>
>         Attachments: KAFKA-1461.patch
>
>
> The current replica fetcher thread will retry in a tight loop if any error occurs during the fetch call. For example, we've seen cases where the fetch continuously throws a connection refused exception leading to several replica fetcher threads that spin in a pretty tight loop.
> To a much lesser degree this is also an issue in the consumer fetcher thread, although the fact that erroring partitions are removed so a leader can be re-discovered helps some.



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