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https://issues.apache.org/jira/browse/FLINK-10484?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16636838#comment-16636838
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Aljoscha Krettek commented on FLINK-10484:
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Hi [~jgrier] :)
There is this issue and a bunch of other metrics-related issues that are being
worked on for 1.7 (and also as bugfixes for earlier versions): FLINK-10246
> New latency tracking metrics format causes metrics cardinality explosion
> ------------------------------------------------------------------------
>
> Key: FLINK-10484
> URL: https://issues.apache.org/jira/browse/FLINK-10484
> Project: Flink
> Issue Type: Bug
> Components: Metrics
> Affects Versions: 1.6.0, 1.6.1, 1.5.4
> Reporter: Jamie Grier
> Assignee: Jamie Grier
> Priority: Critical
>
> The new metrics format for latency tracking causes huge metrics cardinality
> explosion due to the format and the fact that there is a metric reported for
> a every combination of source subtask index and operator subtask index.
> Yikes!
> This format is actually responsible for basically taking down our metrics
> system due to DDOSing our metrics servers (at Lyft).
>
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