NSX Adapter logs error every collection interval - Error in fetching the MP Policy Migration Stats

Products

• VCF Operations/Automation (formerly VMware Aria Suite)

Issue/Introduction

On NSX management pack logs  we see error:

/storage/logs/vcops/logs/adapters/nsxadapter 

2025-08-29T10:11:15,376+0000 ERROR [Collector worker thread 11] (290) com.vmware.adapter3.nsxt.util.NsxtApiUtil.getMPPolicyMigrationStats - Error in fetching the MP Policy Migration Stats, exception caused is: 
com.vmware.vapi.std.errors.InternalServerError: InternalServerError (com.vmware.vapi.std.errors.internal_server_error) => {
    messages = [],
    data = struct => {error_message=upstream connect error or disconnect/reset before headers. reset reason: connection failure, transport failure reason: delayed connect error: 111, error_code=98, module_name=common-service},
    errorType = INTERNAL_SERVER_ERROR

Environment

Aria Operations 8.18.3

 

Cause

We have a check in NSX MP - to switch between the APIs - old NSX Manager APIs vs new Policy API

Resolution

 

You need to migrate to policy layer as manager flow is deprecated as per our documentation: Promote Manager Objects to Policy Objects

Resolution is on NSX level, after applying resolution error should disappear.