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metrics displays on and off when integrate Flink metrics with graphite/Grafana



   I try integrate flink application metrics with graphite/grafana.


   Currently, I have 3 flink application, 2 jobs just consume kafka message and do some business logic, another jobs use flink sql over window with watermark, out of orderness time set to 10 seconds


   When I send 3 application metrics to graphite. The previous 2 job shows all metrics with complete curve





but the job with sql and wm’s metrics show in UI is on and off



Has anyone ever met this issue?