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Troubleshooting performance issues in VMware vCenter Heartbeat
Symptoms
An application or Windows experienced a fault
The message, java.io.IOException: An existing connection was forcibly closed by the remote host appears in the active server's VMLog.txt file
The channel connection between the servers is lost
There was a sudden reboot of the passive server
Purpose
This article provides information on performance issue with VMware vCenter Server Heartbeat.
Resolution
This condition is unusual and generally points to an application, or Windows itself, experiencing a fault on the passive server. The most likely issue here is a sudden reboot / restart of the passive server and may be due to one of the following causes:
The server is configured for automatic software update management and some updates force a server reboot.
There is a software or operating system issue that occasionally results in a BSOD and system restart.
The VMware vCenter Server Heartbeat R2 service experiences problems and may stop responding or terminate unexpectedly.
If this is occurring, it determine the likely source of the non-responsiveness or reboot by examining the Windows event logs.
Alternatively, if the server does not show any evidence of a system restart or a non-responsive application, the issue may be due to one or both of the channel NICs forcing a channel disconnection. For more information see Resolving hardware or driver issues on channel NICs (1008554).
