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Posted to jira@kafka.apache.org by "Mickael Maison (Jira)" <ji...@apache.org> on 2023/06/26 15:48:00 UTC
[jira] [Updated] (KAFKA-15122) Moving partitions between log dirs leads to kafka.log:type=Log metrics being deleted
[ https://issues.apache.org/jira/browse/KAFKA-15122?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Mickael Maison updated KAFKA-15122:
-----------------------------------
Description:
# Start a broker with 2 log directories
# Create a topic-partition
Metrics with the following names are created: kafka.log:type=Log,name=Size,topic=<TOPIC>,partition=0
# Using kafka-reassign-partitions move that partition to the other log directory
A tag is-future=true is added to the existing metrics, kafka.log:type=Log,name=Size,topic=<TOPIC>,partition=0,is-future=true
# Using kafka-reassign-partitions move that partition back to its original log directory
The metrics are deleted!
I don't expect the metrics to be renamed during the first reassignment. The metrics should not be deleted during the second reassignment, the topic still exists. Restarting the broker resolves the issue.
was:
# Start a broker with 2 log directories
# Create a topic-partition
Metrics with the following names are created: kafka.log:type=Log,name=Size,topic=<TOPIC>,partition=0
# Using kafka-reassign-partitions move that partition to the other log directory
A tag isFuture=true is added to the existing metrics, kafka.log:type=Log,name=Size,topic=<TOPIC>,partition=0,isFuture=true
# Using kafka-reassign-partitions move that partition back to its original log directory
The metrics are deleted!
I don't expect the metrics to be renamed during the first reassignment. The metrics should not be deleted during the second reassignment, the topic still exists. Restarting the broker resolves the issue.
> Moving partitions between log dirs leads to kafka.log:type=Log metrics being deleted
> ------------------------------------------------------------------------------------
>
> Key: KAFKA-15122
> URL: https://issues.apache.org/jira/browse/KAFKA-15122
> Project: Kafka
> Issue Type: Task
> Affects Versions: 3.5.0
> Reporter: Mickael Maison
> Priority: Major
>
> # Start a broker with 2 log directories
> # Create a topic-partition
> Metrics with the following names are created: kafka.log:type=Log,name=Size,topic=<TOPIC>,partition=0
> # Using kafka-reassign-partitions move that partition to the other log directory
> A tag is-future=true is added to the existing metrics, kafka.log:type=Log,name=Size,topic=<TOPIC>,partition=0,is-future=true
> # Using kafka-reassign-partitions move that partition back to its original log directory
> The metrics are deleted!
> I don't expect the metrics to be renamed during the first reassignment. The metrics should not be deleted during the second reassignment, the topic still exists. Restarting the broker resolves the issue.
>
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