Enabling HA on a cluster fails with error 'Applying HA VIBs on the cluster encountered a failure.'

Products

• VMware vCenter Server

Issue/Introduction

• The vCenter UI shows the following error when attempting to enable HA on a cluster: 
  
  Cannot complete the configuration of Cannot complete the configuration of the vSphere HA Agent on the host. Applying HA VIBs on the cluster encountered a failure.

• The /var/log/vmware/vpxd/vpxd.log on vCenter may show errors similar to:
  
ApplyHAVibsOnClusterFailed

• The /var/log/vmware/vmware-updatemgr/vum-server/lifecycle.log on vCenter shows entries similar to:
  
  Er(11) lifecycle vmware.esximage.Errors.DepotConnectError: ([MetadataDownloadError('<vCenter-FQDN>:9087/vum/repository/hostupdate/_*micro-depot*_vendor-vmw__metadata-59__index__.xml', '', "Could not download from depot at<vCenter-FQDN>:9087/vum/repository/hostupdate/_*micro-depot*_vendor-vmw__metadata-59__index__.xml, skipping (('<vCenter-FQDN>:9087/vum/repository/hostupdate/_*micro-depot*_vendor-vmw__metadata-59__index__.xml', '', '<urlopen error [Errno -3] Temporary failure in name resolution>'))")

• nslookup against the vCenter FQDN fails in ESXi.

 

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Environment

VMware vCenter Server

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Cause

The ESXi host cannot resolve the DNS name of the vCenter server FQDN.

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Resolution

1. Verify that the ESXi host firewall allows the DNS client access to the environment DNS servers. ESXi Firewall Configuration
2. Troubleshoot network connectivity to environment DNS servers.

Workaround: If DNS servers are unable, configure the vCenter FQDN in the ESXi servers DNS host file: Configure the DNS Hosts File by Using ESXCLI Commands

Wolken View Helper Settings

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