NSX Manager reports "Couldn't connect to 'unix:///var/run/vmware/nestdb/nestdb-server.sock'" warnings

Products

• VMware NSX

Issue/Introduction

• You may see recurring WARNING entries in the NSX Manager syslog reporting failures to connect to a NestDB UNIX socket, for example:

YYYY-MM-DDTHH:MM:SS ############ NSX 2764 - [nsx@6876 comp="nsx-manager" subcomp="opsagent" s2comp="edge-service" tid="2764" level="INFO"] Edge Service App instance is instantiated
YYYY-MM-DDTHH:MM:SS ############ NSX 2764 - [nsx@6876 comp="nsx-manager" s2comp="nsx-rpc" tid="2764" level="INFO"] RpcServiceRegistry[0] Registering local service vmware.nsx.daemon.DaemonHealth
YYYY-MM-DDTHH:MM:SS ############ NSX 2764 - [nsx@6876 comp="nsx-manager" s2comp="nsx-rpc" tid="2764" level="INFO"] NsxRpcServer: starting
YYYY-MM-DDTHH:MM:SS ############ NSX 2764 - [nsx@6876 comp="nsx-manager" s2comp="nsx-rpc" tid="2764" level="INFO"] NsxRpcServer: started accepting connections
YYYY-MM-DDTHH:MM:SS ############ NSX 2764 - [nsx@6876 comp="nsx-manager" subcomp="opsagent" s2comp="framework" tid="2764" level="INFO"] Sbundle Start...
YYYY-MM-DDTHH:MM:SS ############ NSX 2764 - [nsx@6876 comp="nsx-manager" subcomp="opsagent" s2comp="sbundle" tid="2764" level="INFO"] Starting Support Bundle Client...
YYYY-MM-DDTHH:MM:SS ############ NSX 2764 - [nsx@6876 comp="nsx-manager" subcomp="mpa-client" tid="2764" level="INFO"] SupportBundle Register mpa client
YYYY-MM-DDTHH:MM:SS ############ NSX 2764 - [nsx@6876 comp="nsx-manager" s2comp="nsx-net" tid="2774" level="WARNING"] StreamConnection[3 Connecting to unix:///var/run/vmware/nestdb/nestdb-server.sock sid:3] Couldn't connect to 'unix:///var/run/vmware/nestdb/nestdb-server.sock' (error: 2-No such file or directory)
YYYY-MM-DDTHH:MM:SS ############ NSX 2764 - [nsx@6876 comp="nsx-manager" s2comp="nsx-net" tid="2774" level="WARNING"] StreamConnection[3 Error to unix:///var/run/vmware/nestdb/nestdb-server.sock sid:-1] Error 2-No such file or directory
YYYY-MM-DDTHH:MM:SS ############ NSX 2764 - [nsx@6876 comp="nsx-manager" s2comp="nsx-rpc" tid="2774" level="WARNING"] RpcConnection[3 Connecting to unix:///var/run/vmware/nestdb/nestdb-server.sock 0] Couldn't connect to unix:///var/run/vmware/nestdb/nestdb-server.sock (error: 2-No such file or directory)
YYYY-MM-DDTHH:MM:SS ############ NSX 2764 - [nsx@6876 comp="nsx-manager" s2comp="nsx-rpc" tid="2774" level="WARNING"] RpcTransport[0] Unable to connect to unix:///var/run/vmware/nestdb/nestdb-server.sock: 2-No such file or directory

Environment

VMware NSX-T Data Center 3.2.x
VMware NSX 4.0

Cause

False positive connection attempt. NSX Manager does not run NestDB, NestDB is only present on Transport Nodes (TN). 

Resolution

Fixed in NSX 4.1.0. Upgrade to 4.1.0 or later to resolve the issue.