[jira] [Created] (FLINK-4812) Export currentLowWatermark metric also for sources

[Shang Yuanchun (Jira)]

Robert Metzger created FLINK-4812:
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             Summary: Export currentLowWatermark metric also for sources
                 Key: FLINK-4812
                 URL: https://issues.apache.org/jira/browse/FLINK-4812
             Project: Flink
          Issue Type: Improvement
          Components: Metrics
            Reporter: Robert Metzger


As reported by a user, Flink does currently not export the current low watermark for sources (http://apache-flink-mailing-list-archive.1008284.n3.nabble.com/currentLowWatermark-metric-not-reported-for-all-tasks-td13770.html).

This JIRA is for adding such a metric for the sources as well.



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