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https://issues.apache.org/jira/browse/FLINK-7675?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16184002#comment-16184002
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Chesnay Schepler commented on FLINK-7675:
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1.4: 3d2f4cb09d0ead0454523c1a95643a118cc36457
> LatestCompletedCheckpointExternalPathGauge should check if external path is
> exist
> ---------------------------------------------------------------------------------
>
> Key: FLINK-7675
> URL: https://issues.apache.org/jira/browse/FLINK-7675
> Project: Flink
> Issue Type: Bug
> Components: Metrics
> Affects Versions: 1.4.0, 1.3.3
> Reporter: Wei-Che Wei
> Assignee: Wei-Che Wei
> Priority: Blocker
>
> For internal checkpoint, {{CompletedCheckpointStats.getExternalPath()}} could
> be {{null}}.
> This will leads to {{LatestCompletedCheckpointExternalPathGauge}} to return
> {{null}} value to {{MetricDumpSerialization}}, then it will throw
> {{NullPointerException}} in {{serializeGauge}} function.
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