I have successfully reserved a cluster on my NVIDIA Quadro VCA using the web interface or from Maya/3ds Max/V-Ray but now I can't release it. What is the problem and how can I fix it?

Answer ID 4428
Updated 03/09/2017 01:28 PM
I have successfully reserved a cluster on my NVIDIA Quadro VCA using the web
interface or from Maya/3ds Max/V-Ray but now I can't release it. What is the
problem and how can I fix it?


The problem is most likely caused by a misconfiguration of the network interfaces
in the file /etc/hosts. The VCA has multiple network interfaces and the primary
interface used to connect to the VCA can be configured by an admin user from the
'Setup VCA' page in the web interface.

The interface that can be selected there is a device name like 'eth1' or 'eth3'. Each
network device has an IP address assigned to it on operating system level (the
command /sbin/ifconfig can be used to list network devices and assigned IP addresses).

The file /etc/hosts needs to contain a line for the network interface selected in the
'Setup VCA' page of the following format:

<IP address> <hostname>

example

192.47.11.12 my_vca

We've seen cases where the IP address was present but the hostname was missing
and this triggered a problem where the VCA manager couldn't release clusters anymore.
Adding a hostname fixes this problem.

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