NSX-T Data Center Edge service crashes when enable and disable Edge Health poll based alarm

Products

• VMware NSX Networking

Issue/Introduction

Symptoms:

• You have disabled and enabled a poll based alarm for Edge Health in NSX-T Data Center UI, Home, Alarms, Alarm Definitions.
• On the NSX-T Data Center log file, you see the following alerts: get log-file node-mgmt.log
  • 2021-03-19T11:25:59.801Z nsx_monitoring.clientlibrary.event_source INFO The service edge-agent changed from STARTED to CRASHED.
  • 2021-03-19T11:27:00.651Z nsx_monitoring.clientlibrary.event_source INFO The service edge-agent changed from CRASHED to STARTED.
• In the NSX-T Data Center syslog we see a core dump being generated:
  • syslog:<180>1 2021-03-19T09:27:08.840Z edge-15.local NSX 30405 - [nsx@6876 comp="nsx-edge" subcomp="node-mgmt" username="root" level="WARNING"] Core file generated: /var/log/core/core.datapathd.1616146028.2979.0.11.gz

Environment

VMware NSX-T Data Center 3.x
VMware NSX-T Data Center

Cause

The action of re-enabling the alarm causes the container service to crash, the edge will restart the service automatically.

Resolution

This issue is resolved in NSX-T Data Center 3.1.3 .

Workaround:
The edge will restart the crashed container service automatically without generating cores, as long as the poll-based alarms are not disabled and enabled again.