You are unable to install the vCenter Server agent service
In the /var/log/hostd.log file, you see entries similar to:
2011-11-10T15:23:00.527Z [FFA5AA90 verbose 'Proxysvc Req00868'] New proxy client SSL(TCP(local=xxx.xxx.xx.xx:443, peer=192.168.19.30:63940)) 2011-11-10T15:23:00.528Z [4F4B5B90 info 'Proxysvc Req00868'] URL namespace /fdmService.xml does not match any server namespace 2011-11-10T15:23:00.532Z [FFFC2B90 verbose 'Default' opID=C0BD361A-0000028B-61] CloseSession called for session id=########-####-####-####-##########65 2011-11-10T15:23:00.533Z [FFFC2B90 info 'ha-eventmgr' opID=C0BD361A-0000028B-61] Event 189 : User vpxuser logged out 2012-02-10T22:31:20.550Z [3B940B90 verbose 'Proxysvc Req00637'] New proxy client SSL(TCP(local=vCenter:443, peer=host:52674)) 2012-02-10T22:31:20.552Z [FFC25A90 warning 'Proxysvc Req00637'] Connection to localhost:9089 failed with error N7Vmacore15SystemExceptionE(Connection refused).
When enabling HA, the vpxd logs show errors similar to:
2012-02-10T17:31:14.630-05:00 [34188 warning 'Default'] Closing Response processing in unexpected state: 3 2012-02-10T17:31:14.630-05:00 [34188 error 'Default'] [FdmClientAdapter] Unexpected error logging into host hostname: Invalid response code: 503 Service Unavailable 2012-02-10T17:31:14.630-05:00 [34188 error 'Default'] [VpxdClientAdapter] Login to host hostname failed, queuing host sync 2012-02-10T17:31:14.630-05:00 [34188 info 'vmomi.soapStub[397]'] Resetting stub adapter for server TCP:hostname:443 : Closed 2012-02-10T17:31:14.631-05:00 [34188 warning 'Default'] [FdmClientAdapter] Got vmacore exception when invoking csi.FdmService.retrieveClusterInfo on hostname: Invalid response code: 503 Service Unavailable 2012-02-10T17:31:14.631-05:00 [34188 error 'DAS'] [FdmManager::ScanForMaster] Failed to get cluster info from hostname (cluster=ClusterName): class Vmomi::Fault::HostCommunication::Exception(vmodl.fault.HostCommunication)
These HA errors may be reported in vCenter Server after disabling the ESX host's Welcome login Web page :
Cluster error – vCenter Server is unable to find a master vSphere HA agent in cluster Cluster in DR
Host error – vSphere HA agent for this host has an error: vSphere HA agent cannot be correctly installed or configure