[FLINK-15753] Show non-numeric metrics in Web UI

• Type: Improvement
• Status: Open
• Priority: Not a Priority
• Resolution: Unresolved
• Affects Version/s: 1.10.0
• Component/s: Runtime / Web Frontend
• Labels: auto-deprioritized-major auto-deprioritized-minor
• Assignee: Unassigned
• Reporter: Nico Kruber
• Created: 24/Jan/20 14:43
• Updated: 10/Dec/21 10:39

Description

Flink's Web UI seems to be tailored to numeric values only. For metrics like isBackPressured which is boolean, it only shows NaN and nothing in the graph either.

It would be nice to have a plain text view instead of "Numeric" there so we can see arbitrary values (using .toString() internally or so).