The default task operation timeout for VMware View Composer is 60 minutes. Administrators may want to increase or decrease the timeout value based on storage performance or host characteristics. The tasks handled by VMware View Composer are Provision, Refresh and Recompose.
The default 60 minutes should be long enough to cope with most performance situations, however you can modify the default performing the following steps:
1) Stop View Composer service.
2) Modify SviWebService.exe.conf file (under VMware View Composer server installation directory) and set: <VirtualCenter VcTaskTimeout=… /> to a different value.
3) Start View Composer service.
If SviWebService.exe.conf doesn’t have the VcTaskTimeout make sure you add the parameter inside <VirtualCenter />, otherwise you would see an error similar to: System.Configuration.ConfigurationErrorsException: Unrecognized attribute ‘VcTaskTimeout’. Note that attribute names are case-sensitive. (C:\Program Files (x86)\VMware\VMware View Composer\SviWebService.exe.config line nn).