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https://issues.apache.org/jira/browse/BEAM-6573?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17547591#comment-17547591
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Kenneth Knowles commented on BEAM-6573:
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This issue has been migrated to https://github.com/apache/beam/issues/19328
> Should MetricsContainer actually be Serializable?
> -------------------------------------------------
>
> Key: BEAM-6573
> URL: https://issues.apache.org/jira/browse/BEAM-6573
> Project: Beam
> Issue Type: Bug
> Components: sdk-java-core
> Reporter: Kenneth Knowles
> Priority: P3
> Labels: Clarified
>
> Interface MetricsContainer extends Serializable but does not explain why.
> While it does seem like an interface where some implementations will be
> serialized and shipped, it does not seem like an inherent property of a
> MetricsContainer. In particular, Dataflow worker has some implementations
> that are _not_ serializable, and findbugs noticed.
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