Active alarms seen on NSX manager only when queried from API but not visible in GUI

Products

• VMware NSX

Issue/Introduction

These alarms are seen only when queried using API but are not present in NSX GUI 

The API call curl -v -k -u '<user>' -X GET "https://<nsx-manager-fqdn-or-ip>/api/v1/alarms? Status=OPEN" returns results:

However, the NSX GUI shows no alarms:

Environment

VMware NSX

Cause

The issue is observed when active alarms remains stale on NSX manager. 

Resolution

To resolve these stale alarms execute below API using POST method

/api/v1/alarms/<alarm-id>?action=set_status

For Example, 

POST /api/v1/alarms/?action=set_status&new_status=RESOLVED&status=OPEN

i.e. curl -v k -u '<user>' -X POST "https://<nsx-manager-fqdn-or-ip>/api/v1/alarms/?action=set_status&new_status=RESOLVED&status=OPEN"

The set_status can be OPEN, ACKNOWLEDGED, SUPPRESSED, or RESOLVED; If set_status is SUPPRESSED the suppress duration must also be specified

Additional Information

Refer to the NSX API Guide for more information.