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https://issues.apache.org/jira/browse/FLINK-34693?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Stefan Richter updated FLINK-34693:
-----------------------------------
Description:
KafkaWriter is keeping objects in Dequeue of closeables
({{{}producerCloseables{}}}) that are never removed so that the can be GC’ed.
>From heap
>dump:!04599375-f923-4d1a-8d68-9e17e54b363c#media-blob-url=true&id=9d1e022e-8762-45b3-877b-d298ec956078&collection=&contextId=870337&height=306&width=2284&alt=!
> !image-2024-03-15-10-30-08-280.png!
was:
KafkaWriter is keeping instances of {{TwoPhaseCommitProducer}} in Dequeue of
closeables ({{{}producerCloseables{}}}). We are only adding instances to the
queue (for each txn?), but never remove them so that the can be GC’ed.
>From heap dump:
!image-2024-03-15-10-30-50-902.png!
!04599375-f923-4d1a-8d68-9e17e54b363c#media-blob-url=true&id=9d1e022e-8762-45b3-877b-d298ec956078&collection=&contextId=870337&height=306&width=2284&alt=!
!image-2024-03-15-10-30-08-280.png!
> Memory leak in KafkaWriter
> --------------------------
>
> Key: FLINK-34693
> URL: https://issues.apache.org/jira/browse/FLINK-34693
> Project: Flink
> Issue Type: Bug
> Components: Connectors / Kafka
> Affects Versions: 1.18.0, 1.19.0, 1.18.1
> Reporter: Stefan Richter
> Priority: Blocker
> Attachments: image-2024-03-15-10-30-08-280.png,
> image-2024-03-15-10-30-50-902.png
>
>
> KafkaWriter is keeping objects in Dequeue of closeables
> ({{{}producerCloseables{}}}) that are never removed so that the can be GC’ed.
> From heap
> dump:!04599375-f923-4d1a-8d68-9e17e54b363c#media-blob-url=true&id=9d1e022e-8762-45b3-877b-d298ec956078&collection=&contextId=870337&height=306&width=2284&alt=!
> !image-2024-03-15-10-30-08-280.png!
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