Delegated License Service Release Notes

NVIDIA Delegated License Service Release Notes

Release information for all users of NVIDIA Delegated License Service.

This document summarizes current status, information on supported platforms, and known issues with NVIDIA® License System release 3.0.0.

1.1. Updates in this Release

New Features in this Release

  • Zero downtime during major, side-by-side upgrades to the DLS appliance software
  • In-place upgrade for DLS appliance software updates
  • Support for a lightweight directory access protocol (LDAP) directory for DLS user management
  • Identification of a DLS instance by CNAME
  • Removal of the limitations on forcible release of all licenses on a license server
  • Restriction of the netmask prefix to 32 in UI for IPv4 network settings
  • Miscellaneous bug fixes as listed in Resolved Issues

Software Support Introduced in this Release

  • Support for the DLS appliance on the following platforms:
    • Podman 4.4.2
    • VMware vSphere Hypervisor (ESXi) 8.0

1.2. Supported Platforms

1.2.1. Supported Hypervisors

For deployment in a virtual machine, the Delegated License Server (DLS) component of the NVIDIA License System is supplied as a virtual appliance. The virtual appliance must be installed on a supported hypervisor software release.

The following hypervisor software releases are supported:

  • Citrix Hypervisor 8.2
  • Linux Kernel-based Virtual Machine (KVM) hypervisors with QEMU 2.12.0 (qemu-kvm-2.12.0-64.el8.2.27782638)
  • Microsoft Windows Server with Hyper-V 2019 Datacenter edition
  • Red Hat Enterprise Linux Kernel-based Virtual Machine (KVM) 9.1 and 9.0
  • Red Hat Virtualization 4.3
  • Ubuntu Hypervisor 22.04
  • VMware vSphere Hypervisor (ESXi) 8.0, 7.0.3, 7.0.2, and 7.0.1

1.2.2. Supported Container Orchestration Platforms

For deployment on a bare-metal OS, the Delegated License Server (DLS) component of the NVIDIA License System is supplied as a containerized software image. The containerized software image must be deployed on a supported container orchestration platform.

The following container orchestration platform releases are supported:

  • Docker 20.10.17 with Docker Compose 2.6.0
  • Kubernetes 1.23.8
  • Red Hat OpenShift Container Platform 4.10.18 with Kubernetes 1.23.5
  • Podman 4.4.2 with Podman Compose 1.0.7
  • VMware Tanzu Application Platform 1.1 with Kubernetes 1.23.6

1.2.3. Licensed Client Support

NVIDIA License System supports specific releases of several NVIDIA software products as licensed clients.

Software Product Supported Releases
NVIDIA® vGPU™ software graphics drivers NVIDIA vGPU software starting with release 13.0

1.2.4. Web Browser Requirements

NVIDIA License System and NVIDIA Licensing Portal were tested with Google Chrome version 86.0.4240.111 (Official Build) (64-bit).

A container orchestration platform cannot control or restrict access to the OS on which the platform is running. Therefore, containerized DLS software images cannot support the features of VM-based DLS virtual appliances that rely on the ability of the appliance to control the underlying OS.

Containerized DLS software images do not support the following features, for which equivalent functionality is available through standard OS interfaces:

  • Log archive settings
  • NTP configuration
  • Static IP address configuration
  • DLS diagnostics user configuration
  • Disk expansion

Because a container orchestration platform cannot control the underlying OS, the following limitations also apply to containerized DLS software images:

  • Online migration from a VM-based DLS virtual appliance to a containerized DLS software image is not supported because the destination containerized DLS software image retains its IP address even after data migration.

    Instead, you must use offline migration when migrating from a VM-based DLS virtual appliance to a containerized DLS software image.

  • When the secondary node is removed from an HA cluster, the containerized DLS software image that hosts the node is not shut down.

    Instead, you must shut down the DLS software container manually.

Only resolved issues that have been previously noted as known issues or had a noticeable user impact are listed. The summary and description for each resolved issue indicate the effect of the issue on NVIDIA License System before the issue was resolved.

Bug ID Summary
3936853

Node-locked licenses are missing from the DLS instance Leases page

Node-locked licenses are missing from the Leases page for the DLS instance that is bound to the license server from which the node-locked licenses were generated. However, node-locked licenses are correctly listed on the Leases tab of the NVIDIA Licensing Dashboard for the DLS instance. Node-locked licenses can be generated only from license servers for which the Disconnected leasing mode? option is set.

3998515

DLS API key requires expiration date

An API key can be created and exported without an expiration date. However, if an API key without an expiration date that has been imported into a DLS instance is used in a DLS RESTful API call, HTTP error code 401, Provided apikey is not valid, is returned.


4.1. HA cluster node is not synchronized while its virtual NIC is removed

Description

If a virtual network interface card (NIC) is removed from a node in an HA cluster, the node cannot reach other nodes in the cluster. The node from which the virtual NIC has been removed handles the inability to reach other nodes as a failure of those nodes and assumes the primary role. While the NIC is removed, the node cannot be updated with information about operations that other nodes in the cluster have performed.

Workaround

After the virtual NIC is attached again, the node assumes a role that depends on its uptime. When a node is restarted, it is synchronized with the primary node and assumes the secondary role. Therefore, how to synchronize the nodes in the cluster depends on the role that the node assumes when the virtual NIC is attached again:

  • Primary: All other nodes in the cluster must be restarted.
  • Secondary: The node itself must be restarted.

Status

Closed

Ref. #

4097705

4.2. Migration of a DLS instance fails

Description

Migration of a DLS instance can fail if a large quantity of data is to be migrated. This issue affects both online and offline migration of a DLS instance. When this issue occurs, the NVIDIA Licensing application on the new DLS virtual appliance is affected in one of the following ways:

  • The NVIDIA Licensing Dashboard does not show license server details.
  • The ACKNOWLEDGE MIGRATION button is absent from Maintenance page.

Workaround

Contact NVIDIA Enterprise Support to obtain a workaround for this issue.

Status

Open

Ref. #

3961380

4.3. HA cluster creation fails after migration of a DLS instance

Description

HA cluster creation after migration of a DLS instance can fail if a large quantity of data is to be migrated.

Workaround

Contact NVIDIA Enterprise Support to obtain a workaround for this issue.

Status

Open

Ref. #

3931610

4.4. BadRequestError error is displayed on the Events page of a DLS instance

Description

When a licensed client requests a license from a DLS instance, the following error is displayed on the Events page of the DLS instance:

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BadRequestError(origin reference reference already in use by different fingerprint)

Workaround

Ignore this error because it is a transient error. After the licensed client repeats the request, this issue is resolved.

Status

Not a bug

Ref. #

3966221

4.5. VM-based DLS appliance has security vulnerabilities

Description

The VM-based DLS appliance for each supported hypervisor has security vulnerabilities because the nodev option is not set on the /boot/efi partition.

Workaround

You can mitigate these vulnerabilities by setting the nodev option on the affected file-system partition.

  1. Use the hypervisor management console of the appliance to log in as the user rsu_admin to the VM that hosts the DLS appliance.
  2. Add the nodev mount option to the entry in /etc/fstab for the /boot/efi partition.
  3. Restart the VM that hosts the DLS appliance.

Status

Not a bug

Ref. #

3923943

4.6. Events cannot be exported from a DLS instance on a Kubernetes platform

Description

Events cannot be exported from a DLS instance hosted by a container-based DLS appliance running on Kubernetes, Red Hat OpenShift Container Platform, or VMware Tanzu Application Platform. When a user tries to export events, the attempt fails and the error message Export file generation failed. Please try again. is displayed.

This issue occurs because the user that is exporting events does not have the permissions required to create the directories to which the events are exported.

Workaround

Create the directories to which the events are exported and grant write access to all users to these directories.

  1. Change to the directory where the configurations volume is mounted.

  2. Create the enc and unenc directories.

    1. Create the enc directory.

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      $ mkdir enc

    2. Create the unenc directory.

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      $ mkdir unenc

  3. Grant write access to all users to the directories that you created in the previous step.

    1. Grant write access to all users to the enc directory.

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      $ chmod -R 707 enc

    2. Grant write access to all users to the unenc directory.

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      $ chmod -R 707 unenc

Status

Open

Ref. #

3917695

4.7. Validation of the client configuration token fails

Description

When Network Time Protocol (NTP) servers are configured for a VM-based DLS instance, the system times on the DLS instance and the licensed client might still be different. In this situation, validation of the client configuration token fails. When the licensed client requests a license, the request fails and the following error message is displayed:

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Client Configuration Token Validation Failed. Either the token is not activated or system clock settings are tampered

Workaround

When configuring NTP servers on a DLS virtual appliance, specify the IP addresses, not the fully qualified domain names, of the NTP servers.

Status

Open

Ref. #

3718863

4.8. VM hosting a DLS appliance cannot be reached

Description

After a VM-based DLS appliance has been installed, the VM that is hosting the DLS appliance cannot be reached after it has been started. This issue occurs when a static IP address has been assigned to the VM that is hosting the DLS appliance and the subnet mask of the VM's network was specified in an incorrect format. The subnet mask of the VM's network must be specified in classless inter-domain routing (CIDR) format without the leading slash character (/).

Workaround

Reinstall the VM-based DLS appliance, specifying the subnet mask in the correct format, namely, CIDR format without the leading slash character (/).

To get a subnet mask in CIDR format from its decimal equivalent, refer to the table on page 2 of IETF RFC 1878: Variable Length Subnet Table For IPv4. For example, the subnet mask in CIDR format of the decimal equivalent 255.255.255.0 is 24.

Status

Not a bug

Ref. #

3741535

4.9. Client fails to acquire offline license when rebooted

Description

When a licensed client that is configured with an offline license is rebooted, the client might fail to acquire a license. When this issue occurs, the following message is written to the licensing event log file on the client:

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Client fingerprint mismatch - No valid lease found in local trusted store


This issue occurs when the MAC addresses of the network adapters for a client change when the client is rebooted. When the MAC addresses change, the NVIDIA vGPU software graphics driver treats the client as a new client and the offline license in the client's trusted storage database is discarded.

Typically, the MAC addresses change because the network configuration of the client has been explicitly changed by an administrator. However, the MAC address of a client can unexpectedly change when the client is rebooted for several reasons, for example:

  • The client requests a license before the client's network interfaces are initialized.
  • Docker or the NVIDIA Container Runtime for Docker is installed on the client and the ifconfig command lists it as a network interface.

Status

Open

Ref. #

200665895

To comply with the terms of the GPL/LGPL v3 license under which the GPL/LGPL v3 licensed Open Source Software (OSS) libraries within the DLS virtual appliance are released, the rsu_admin user has the elevated privileges required to update and upgrade these libraries.

CAUTION:

Any changes to the Ubuntu GPL/LGPL v3 licensed OSS libraries within the DLS virtual appliance might impair the performance of the DLS virtual appliance or prevent it from functioning as required. If you make any changes to these libraries, the affected DLS instance is no longer eligible for support from NVIDIA. It is your responsibility to ensure that the DLS instance continues to perform and function as required.


Ensure that the sudo DLS user account rsu_admin has been created.

  1. Log in as the rsu_admin user to the VM that hosts the DLS virtual appliance.
  2. Determine whether your existing network configuration allows the DLS virtual appliance to reach the Ubuntu package repositories. For example, download information from all configured sources about the latest versions of the packages.
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    $ sudo apt update

  3. If the DLS virtual appliance cannot reach the Ubuntu package repositories, modify your network configuration to allow access to these repositories.
    1. Ensure that your DNS server has the entries required to resolve the domain names of the Ubuntu package repositories.
    2. Delete the symbolic link /etc/resolv.conf.
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      $ sudo rm -f /etc/resolv.conf

    3. Copy the default resolv.conf file at /run/NetworkManager to /etc/resolv.conf.
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      $ sudo cp /run/NetworkManager/no-stub-resolv.conf /etc/resolv.conf

  4. Use the Advanced Packaging Tool (APT) of the Ubuntu OS to check for and install any available updates to the Ubuntu GPL/LGPL v3 licensed OSS libraries.
  5. After installing the updates, restore your original network configuration.
    1. Delete the /etc/resolv.conf file that you copied earlier.
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      $ sudo rm -f /etc/resolv.conf

    2. Re-create the symbolic link /etc/resolv.conf.
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      $ sudo ln -s /run/NetworkManager/no-stub-resolv.conf /etc/resolv.conf

The file /var/dls/sudouser is created to indicate that the Ubuntu GPL/LGPL v3 licensed OSS libraries within the DLS virtual appliance have been updated or upgraded. If the DLS virtual appliance is hosting a node in an HA cluster, this file is automatically copied to the other node in the cluster.

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