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https://issues.apache.org/jira/browse/FLINK-7575?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16213988#comment-16213988
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ASF GitHub Bot commented on FLINK-7575:
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Github user tillrohrmann commented on the issue:
https://github.com/apache/flink/pull/4647
Sorry for joining the party so late, but I think the solution is
incomplete. Flink displays many metrics for the different components of the
system. For example, the `TaskManagersHandler` displays the memory of the
respective `TaskManagers`. If we say, we don't want to display metric
information if it's not complete, then this should be fixed as well.
> Dashboard jobs/tasks metrics display 0 when metrics are not yet available
> -------------------------------------------------------------------------
>
> Key: FLINK-7575
> URL: https://issues.apache.org/jira/browse/FLINK-7575
> Project: Flink
> Issue Type: Improvement
> Components: Webfrontend
> Affects Versions: 1.3.2
> Reporter: James Lafa
> Assignee: James Lafa
> Priority: Minor
> Fix For: 1.4.0
>
>
> The web frontend is currently displaying "0" when a metric is not available
> yet (ex: records-in/out, bytes-in/out).
> 0 is misleading and it's preferable to display no value while the value is
> still unknown.
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