[YARN-9836] General usability improvements in showSimulationTrace.html

• Type: Sub-task
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 3.3.0
• Fix Version/s: 3.3.0, 3.2.2, 3.1.4
• Component/s: scheduler-load-simulator
• Target Version/s: 3.3.0
• Hadoop Flags: Reviewed
• Assignee: Adam Antal
• Reporter: Adam Antal
• Created: 16/Sep/19 15:34
• Updated: 20/Nov/19 14:13
• Resolved: 19/Nov/19 20:23

Description

There are some small usability improvements that can be made for the offline analysis page (showSimulationTrace.html):

• empty divs can be hidden until no data is displayed
• the site can be refactored to be responsive given that bootstrap is already available as third party library
• there's no proper error handling in the site (e.g. a JSON is malformed and similar cases) which is really a big problem
• there's no indentation in the raw html file which makes supportability even worse