[jira] [Created] (FLINK-7586) Report Watermark metrics in all operators

[Shang Yuanchun (Jira)]

Aljoscha Krettek created FLINK-7586:
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             Summary: Report Watermark metrics in all operators
                 Key: FLINK-7586
                 URL: https://issues.apache.org/jira/browse/FLINK-7586
             Project: Flink
          Issue Type: Bug
          Components: DataStream API, Metrics
    Affects Versions: 1.3.2, 1.4.0
            Reporter: Aljoscha Krettek
            Priority: Blocker
             Fix For: 1.4.0


Currently, the "currentLowWatermark" metric is only reported in {{StreamInputProcessor}} (and the two-input version). This means that watermarks are only reported for operators directly after a shuffle.

We should report the watermark in all operators (including sources), so that users can better diagnose problems with watermarks.



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