[FLINK-20852] Enrich back pressure stats per subtask in the WebUI

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.12.0
• Fix Version/s: 1.13.0
• Component/s: Runtime / Web Frontend
• Labels: pull-request-available
• Assignee: Piotr Nowojski
• Reporter: Piotr Nowojski
• Created: 05/Jan/21 14:05
• Updated: 28/May/21 07:06
• Resolved: 12/Jan/21 19:49

Description

We can enrich the back pressure tab in the WebUI with a couple of more metrics that can help us diagnose the problem, like:

• backPressuredTimeMsPerSecond
• busyTimeMsPerSecond
• idleTimeMsPerSecond
• inPoolUsage
• outPoolUsage

Issue Links

• links to: GitHub Pull Request #14618