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https://issues.apache.org/jira/browse/FLINK-29132?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17598208#comment-17598208
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Sitan Pang commented on FLINK-29132:
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Anyone has any thoughts on this?
> SubtaskMetricStore causes memory leak.
> --------------------------------------
>
> Key: FLINK-29132
> URL: https://issues.apache.org/jira/browse/FLINK-29132
> Project: Flink
> Issue Type: Bug
> Components: Runtime / Metrics
> Reporter: Sitan Pang
> Priority: Major
> Attachments: dump-attempts.png, dump-metricStore.png,
> image-2022-08-30-11-56-34-608.png, image-2022-08-30-11-57-59-325.png
>
>
> In [FLINK-28588], MetricStore supports multiple attempts of a subtask.
> However, `SubtaskMetricStore` doesn't have a clean mechanism. In failover
> scenario, `attempts` pile up and cause OOM.
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