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https://issues.apache.org/jira/browse/FLINK-20530?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chesnay Schepler closed FLINK-20530.
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Resolution: Not A Problem
It's not invalid. The gauge metric allows any type to be exposed, and the
support is naturally supported by the actual backends.
Note that there is FLINK-6053 to change this and limit gauges to numbers, but
this will have to wait until 2.0 .
> Invalid metric named `lastCheckpointExternalPath`
> --------------------------------------------------
>
> Key: FLINK-20530
> URL: https://issues.apache.org/jira/browse/FLINK-20530
> Project: Flink
> Issue Type: Bug
> Components: Runtime / Metrics
> Affects Versions: 1.11.0
> Reporter: xiaozilong
> Priority: Major
>
> The metric `lastCheckpointExternalPath` invalid because of
> `PrometheusPushGatewayReporter` not support the gauge of string type.
> {code:java}
> o.a.flink.metrics.prometheus.PrometheusPushGatewayReporter - Invalid type
> for Gauge
> org.apache.flink.runtime.checkpoint.CheckpointStatsTracker$LatestCompletedCheckpointExternalPathGauge@782aad92:
> java.lang.String, only number types and booleans are supported by this
> reporter.
> {code}
>
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