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Posted to dev@kafka.apache.org by "yazgoo (Jira)" <ji...@apache.org> on 2021/08/04 14:39:00 UTC
[jira] [Reopened] (KAFKA-10413) rebalancing leads to unevenly
balanced connectors
[ https://issues.apache.org/jira/browse/KAFKA-10413?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
yazgoo reopened KAFKA-10413:
----------------------------
Hi,
I'm reopening this because I'm still seeing this issue with CP 6.2.0 which ships with 2.8.0 which is marked as a fixed version.
We basically see the same behavior as mentioned in the issue description.
> rebalancing leads to unevenly balanced connectors
> -------------------------------------------------
>
> Key: KAFKA-10413
> URL: https://issues.apache.org/jira/browse/KAFKA-10413
> Project: Kafka
> Issue Type: Bug
> Components: KafkaConnect
> Affects Versions: 2.5.1
> Reporter: yazgoo
> Assignee: rameshkrishnan muthusamy
> Priority: Major
> Fix For: 2.4.2, 2.5.2, 2.8.0, 2.7.1, 2.6.2
>
> Attachments: connect_worker_balanced.png
>
>
> Hi,
> With CP 5.5, running kafka connect s3 sink on EC2 whith autoscaling enabled, if a connect instance disappear, or a new one appear, we're seeing unbalanced consumption, much like mentionned in this post:
> [https://stackoverflow.com/questions/58644622/incremental-cooperative-rebalancing-leads-to-unevenly-balanced-connectors]
> This usually leads to one kafka connect instance taking most of the load and consumption not being able to keep on.
> Currently, we're "fixing" this by deleting the connector and re-creating it, but this is far from ideal.
> Any suggestion on what we could do to mitigate this ?
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