ESX Server Hosts Disconnecting From VirtualCenter Server Due to Socket-Related Errors (1004300)
vpxd-0.log:[2007-10-31 15:19:44.414 'App' 5020 error] [VpxVmdbCnx] Authd error: Cannot connect to host test02.server.vmware.com: An operation on a socket could not be performed because the system lacked sufficient buffer space or because a queue was full
vpxd-0.log:[2007-10-31 15:43:43.036 'App' 628 verbose] [ScheduledTaskActionLRO] Failed to send email. Error:The message could not be sent to the SMTP server. The transport error code was 0x800ccc15. The server response was not available
This issue has been resolved in VirtualCenter 2.5 Update 1. After the VirtualCenter Server sends email alerts, the SMTP connections are terminated locally, and the socket connection to the email server closes. The ESX Server hosts remain connected to the VirtualCenter Server.