[
https://issues.apache.org/jira/browse/KAFKA-1461?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14359402#comment-14359402
]
Jun Rao commented on KAFKA-1461:
--------------------------------
[~sriharsha], for the changes in RB 31366. We need to think through the case
when all partitions are inactive. Presumably when that happens, we need to back
off the fetching a bit.
> 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, KAFKA-1461.patch,
> KAFKA-1461_2015-03-11_10:41:26.patch, KAFKA-1461_2015-03-11_18:17:51.patch,
> KAFKA-1461_2015-03-12_13:54:51.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.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
