vRNI shows "Syslog server not configured for NSX Controller" warning for all of controllers

Products

• VMware Aria Operations for Networks
• VMware NSX

Issue/Introduction

Symptoms:

• vRNI shows "Syslog server not configured for NSX Controller" warnings though all of controllers are configured with Syslog server.
• NSX version is 6.4.2 or later.
• VRNI version 4.1 or later
• You might configure Syslog server for NSX controllers by GUI.
• You can obtain the configuration by new API (GET /api/2.0/vdn/controller/cluster/syslog) but you cannot obtain by old API (GET /api/2.0/vdn/controller/{controllerId}/syslog)

Environment

VMware vRealize Network Insight 3.x
VMware NSX Data Center for vSphere 6.4.x
VMware vRealize Network Insight 4.x

Resolution

This is the expected behavior of vRNI.

Since new API for controller syslog configuration is introduced from NSX 6.2, old API is deprecated in current NSX. However, vRNI which is released before NSX 6.4.2 uses old API. Hence, if you use NSX 6.4.2 or later and edited controller syslog configuration from GUI or by new API, vRNI fails to obtain the configuration by old API.

Workaround:
No workaround

Additional Information

See also VMware NSX Data Center for vSphere 6.4.2 Release Notes