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feat: add Longhorn V2 hugepage settings (#942)

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This exposes the longhorn-v2-data-engine-hugepage-enabled and
longhorn-v2-data-engine-memory-size settings in the Harvester GUI, on
Harvester v1.9.0 and later.

Related-to: https://github.com/harvester/harvester/issues/9390

Signed-off-by: Tim Serong <tserong@suse.com>
This commit is contained in:
Tim Serong 2026-06-25 14:39:23 +10:00 committed by GitHub
parent 34dfe4027e
commit d03cff645b
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GPG Key ID: B5690EEEBB952194
3 changed files with 58 additions and 45 deletions
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3
pkg/harvester/config/feature-flags.js
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@ -72,7 +72,8 @@ const FEATURE_FLAGS = {
'v1.9.0': [
'supportFilesystem',
'disableResourcePooling',
'expandOnlineEncryptedVolume'
'expandOnlineEncryptedVolume',
'longhornV2HugepageSettings'
],
};

10
pkg/harvester/config/settings.ts
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@ -35,6 +35,8 @@ export const HCI_SETTING = {
AUTO_ROTATE_RKE2_CERTS: 'auto-rotate-rke2-certs',
KUBECONFIG_DEFAULT_TOKEN_TTL_MINUTES: 'kubeconfig-default-token-ttl-minutes',
LONGHORN_V2_DATA_ENGINE_ENABLED: 'longhorn-v2-data-engine-enabled',
LONGHORN_V2_DATA_ENGINE_HUGEPAGE_ENABLED: 'longhorn-v2-data-engine-hugepage-enabled',
LONGHORN_V2_DATA_ENGINE_MEMORY_SIZE: 'longhorn-v2-data-engine-memory-size',
ADDITIONAL_GUEST_MEMORY_OVERHEAD_RATIO: 'additional-guest-memory-overhead-ratio',
UPGRADE_CONFIG: 'upgrade-config',
VM_MIGRATION_NETWORK: 'vm-migration-network',
@ -112,6 +114,14 @@ export const HCI_ALLOWED_SETTINGS = {
experimental: true,
featureFlag: 'longhornV2LVMSupport'
},
[HCI_SETTING.LONGHORN_V2_DATA_ENGINE_HUGEPAGE_ENABLED]: {
kind: 'boolean',
featureFlag: 'longhornV2HugepageSettings'
},
[HCI_SETTING.LONGHORN_V2_DATA_ENGINE_MEMORY_SIZE]: {
kind: 'number',
featureFlag: 'longhornV2HugepageSettings'
},
[HCI_SETTING.ADDITIONAL_GUEST_MEMORY_OVERHEAD_RATIO]: { kind: 'string', from: 'import' },
[HCI_SETTING.UPGRADE_CONFIG]: {
kind: 'json',

2
pkg/harvester/l10n/en-us.yaml
View File

@ -2092,6 +2092,8 @@ advancedSettings:
'harv-auto-rotate-rke2-certs': The certificate rotation mechanism relies on Rancher. Harvester will automatically update certificates generation to trigger rotation.
'harv-kubeconfig-default-token-ttl-minutes': 'TTL (in minutes) applied on Harvester administration kubeconfig files. Default is 0, which means to never expire.'
'harv-longhorn-v2-data-engine-enabled': 'Enable the Longhorn V2 data engine. Default is false. <ul><li>Changing this setting will restart RKE2 on all nodes. This will not affect running VM workloads.</li><li>If you see "not enough hugepages-2Mi capacity" errors when enabling this setting, wait a minute for the error to clear. If the error remains, reboot the affected node.</li></ul>'
'harv-longhorn-v2-data-engine-hugepage-enabled': 'Enable hugepages when using the Longhorn V2 data engine. Default is true. Disabling hugepages reduces memory pressure on low-spec nodes and increases deployment flexibility. However, performance may be lower compared to running with hugepages.'
'harv-longhorn-v2-data-engine-memory-size': 'Configure the amount of memory allocated to the SPDK target daemon when using the Longhorn V2 data engine. Default is 2048 MiB.'
'harv-additional-guest-memory-overhead-ratio': 'The ratio for kubevirt to adjust the VM overhead memory. The value could be zero, empty value or floating number between 1.0 and 10.0, default to 1.5.'
'harv-upgrade-config': 'Configure image preloading and VM restore options for upgrades. See related fields in <a href="{url}" target="_blank" rel="noopener">settings/upgrade-config</a>'
'harv-vm-migration-network': 'Segregated network for VM migration traffic.'