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Currently users have to click on every operator and check how much data each sub-task is processing to see if there is data skew. This is particularly cumbersome and error-prone for jobs with big job graphs. Data skew is an important metric that should be more visible.

Public Interfaces

Exposed monitoring information. This is not expected to be a change in the programming interface, but rather a change in the Flink Dashboard UI and an addition to the list of available metrics. 

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