After host upgrade from NSX 4.1.0.2 to 4.1.2.3, nsx-cfgAgent crashes

Products

• VMware NSX-T Data Center

Issue/Introduction

Post NSX 4.1.2.3 upgrade, nsx-cfgagent may experience crash 

Following entries are found in log file

 /var/run/log/nsx-syslog.log

alarmState="OPEN" comp="nsx-manager" entId="09461c0e-2687-48ec-bf76-4869a3ee2e29" errorCode="MP701099" eventFeatureName="infrastructure_service" eventSev="CRITICAL" eventState="On" eventType="application_crashed" level="FATAL" nodeId="09461c0e-2687-48ec-bf76-4869a3ee2e29" subcomp="monitoring"] Application on NSX node xx-xxx-xxxx-xxxxx has crashed. The number of core files found is 1. Collect the Support Bundle including core dump files and contact VMware Support team.

alarmState="OPEN" comp="nsx-manager" entId="09461c0e-2687-48ec-bf76-4869a3ee2e29" eventFeatureName="cni_health" eventSev="MEDIUM" eventState="On" even
tType="hyperbus_manager_connection_down" level="WARNING" nodeId="xxxxx-xxx-xxx-xxx-xxxxxx" subcomp="monitoring"] Hyperbus cannot communicate with the Manager node.

 

Environment

NSX 4.1.2.3

Cause

This issue happens in a situation where nsx-cfgagent.xml file is changed prior to the upgrade to NSX 4.1.2.3.

The change in this file will cause nsx-cfgagent crash after the upgrade 

 

Resolution

Restore original nsx-cfgagent.xml

Additional Information

Workaround 

Avoid manual changes to nsx-cfgagent.xml file