[AMBARI-18639] Ambari UI does not allow to modify EMPTY threshold text of 'OK' and 'WARNING'

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 2.4.1, 2.5.0
• Fix Version/s: 2.5.0, 2.4.2
• Component/s: ambari-web
• Assignee: Xi Wang
• Reporter: Xi Wang
• Created: 19/Oct/16 18:22
• Updated: 21/Oct/16 02:09
• Resolved: 20/Oct/16 21:59

Description

Ambari UI does not allow to modify threshold of 'OK' and 'WARNING' in ResourceManager WEB UI alert.

Steps to reproduce:

1. Remove threshold from WARNING/OK at alert of ResourceManager WEB UI
2. Save
3. Refresh Ambari UI and and the field is blank - Expected
4. Add any threshold string (may be the one that you removed) to WARNING/OK and then save
5. Refresh Ambari UI. Here is the problem. It shows just blank.
6. API /api/v1/clusters/young-hdp250/alert_definitions/44 shows blank too.

• It's happening because the PUT call is sent empty.
  

"critical" : { 
          "text" : "Connection failed to {1} ({3})" 
        }, 
        "ok" : { 
          "text" : "HTTP {0} response in {2:.3f}s" 
        }, 
        "warning" : { 
          "text" : "" 
        } 

Workaround:

Manual update using curl command works.