Robert Metzger created FLINK-3427: ------------------------------------- Summary: Add watermark monitoring to JobManager web frontend Key: FLINK-3427 URL: https://issues.apache.org/jira/browse/FLINK-3427 Project: Flink Issue Type: Improvement Components: Streaming, Webfrontend Reporter: Robert Metzger
Currently, its quite hard to figure out issues with the watermarks. I think we can improve the situation by reporting the following information through the metrics system: - Report the current low watermark for each operator (this way, you can see if one operator is preventing the watermarks to rise) - Report the number of events arrived after the low watermark (users can see how accurate the watermarks are) -- This message was sent by Atlassian JIRA (v6.3.4#6332)