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https://issues.apache.org/jira/browse/KAFKA-15122?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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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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