Local Manager Sync not connected on Global Manager

Products

• VMware NSX

Issue/Introduction

• Newly deployed Local Manager "SYNC" status shows disconnected on Global manager. 
• The following is observed in the on the Global Manager /var/log/async-replicator/ar.log

J2K7GMWRL7:async-replicator $ zgrep -ai "onStub" ar.* | grep "#######-####-####-####-#######"
ar.1.log:2025-04-30T20:20:18.945Z INFO NsxRpcStubManager-0 ReplicatorToReplicatorRpcClient 3601709 - [nsx@6876 comp="global-manager" level="INFO" subcomp="async-replicator"] onStubUp:: remoteSite=#######-####-####-####-#######
ar.1.log:2025-04-30T20:20:18.945Z INFO NsxRpcStubManager-0 InterSiteProtocolHandlerImpl 3601709 - [nsx@6876 comp="global-manager" level="INFO" subcomp="async-replicator"] onStubUp:: remoteSite=#######-####-####-####-#######
ar.1.log:2025-04-30T20:20:18.983Z INFO ForkJoinPool.commonPool-worker-3 ReplicatorToReplicatorRpcClient 3601709 - [nsx@6876 comp="global-manager" level="INFO" subcomp="async-replicator"] onStubDown:: remoteSite=#######-####-####-####-#######
ar.1.log:2025-04-30T20:20:18.983Z INFO ForkJoinPool.commonPool-worker-3 InterSiteProtocolHandlerImpl 3601709 - [nsx@6876 comp="global-manager" level="INFO" subcomp="async-replicator"] onStubDown:: remoteSite=#######-####-####-####-#######

J2K7GMWRL7:async-replicator $ grep "checkAndSetLeader: remote s" ar.1.log | grep "#######-####-####-####-#######"
2025-04-30T20:20:16.739Z INFO NsxRpcStubManager-0 NsxRpcStubManager 3601709 SYSTEM [nsx@6876 comp="global-manager" level="INFO" subcomp="async-replicator"] checkAndSetLeader: remote site #######-####-####-####-#######, aph #######-####-####-####-#######, isLeader=false
2025-04-30T20:20:16.770Z INFO NsxRpcStubManager-0 NsxRpcStubManager 3601709 SYSTEM [nsx@6876 comp="global-manager" level="INFO" subcomp="async-replicator"] checkAndSetLeader: remote site #######-####-####-####-#######, aph #######-####-####-####-#######, isLeader=true
2025-04-30T20:20:19.678Z INFO NsxRpcStubManager-1 NsxRpcStubManager 3601709 SYSTEM [nsx@6876 comp="global-manager" level="INFO" subcomp="async-replicator"] checkAndSetLeader: remote site #######-####-####-####-####### aph #######-####-####-####-#######, isLeader=false

Environment

VMware NSX 4.x

Cause

Connection to LM went down and came back up after few seconds. As a result, in GM ReplicatorToReplicator stub to remote site goes down and comes up. Stub down thread went to idle and by the time it completed its task, connection got established Stub-up thread completed. Stub down thread resumed after sleep and marked the connection to be down.

Resolution

This issue is resolved in VMware NSX 4.2.2, available at Broadcom downloads.

If you are having difficulty finding and downloading software, please review the Download Broadcom products and software KB.

Workaround:

Restart async-replicator-service in GM node:

service async-replicator-service restart