[jira] [Created] (FLINK-20530) Invalid metric named `lastCheckpointExternalPath`

[Shang Yuanchun (Jira)]

xiaozilong created FLINK-20530:
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             Summary:  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


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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