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https://issues.apache.org/jira/browse/FLINK-7443?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16126495#comment-16126495
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ASF GitHub Bot commented on FLINK-7443:
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Github user greghogan commented on the issue:
https://github.com/apache/flink/pull/4539
+1 but I'm only seeing an improvement and not a bug
> Store and deserializer fields in MetricFetcher should be final
> --------------------------------------------------------------
>
> Key: FLINK-7443
> URL: https://issues.apache.org/jira/browse/FLINK-7443
> Project: Flink
> Issue Type: Bug
> Components: Metrics
> Affects Versions: 1.4.0
> Reporter: Chesnay Schepler
> Assignee: Chesnay Schepler
> Fix For: 1.4.0
>
>
> The {{MetricStore}} and {{MetricDumpDeserializer}} fields in the
> {{MetricFetcher}} should be final, as they are not meant to be overwritten
> and are even used for synchronization.
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