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Parameters that can be configured on Linux nodes.
JSON representation{
"sysctls": {
string: string,
...
},
"cgroupMode": enum (CgroupMode),
"hugepages": {
object (HugepagesConfig)
}
} Fields sysctls
map (key: string, value: string)
The Linux kernel parameters to be applied to the nodes and all pods running on the nodes.
The following parameters are supported.
net.core.busy_poll net.core.busy_read net.core.netdev_max_backlog net.core.rmem_max net.core.rmem_default net.core.wmem_default net.core.wmem_max net.core.optmem_max net.core.somaxconn net.ipv4.tcp_rmem net.ipv4.tcp_wmem net.ipv4.tcp_tw_reuse net.netfilter.nf_conntrack_max net.netfilter.nf_conntrack_buckets net.netfilter.nf_conntrack_tcp_timeout_close_wait net.netfilter.nf_conntrack_tcp_timeout_time_wait net.netfilter.nf_conntrack_tcp_timeout_established net.netfilter.nf_conntrack_acct kernel.shmmni kernel.shmmax kernel.shmall vm.max_map_count
An object containing a list of "key": value pairs. Example: { "name": "wrench", "mass": "1.3kg", "count": "3" }.
cgroupMode
enum (CgroupMode)
cgroupMode specifies the cgroup mode to be used on the node.
hugepages
object (HugepagesConfig)
Optional. Amounts for 2M and 1G hugepages
CgroupModePossible cgroup modes that can be used.
EnumsCGROUP_MODE_UNSPECIFIED CGROUP_MODE_UNSPECIFIED is when unspecified cgroup configuration is used. The default for the GKE node OS image will be used. CGROUP_MODE_V1 CGROUP_MODE_V1 specifies to use cgroupv1 for the cgroup configuration on the node image. CGROUP_MODE_V2 CGROUP_MODE_V2 specifies to use cgroupv2 for the cgroup configuration on the node image. HugepagesConfig
Hugepages amount in both 2m and 1g size
JSON representation{
"hugepageSize2m": integer,
"hugepageSize1g": integer
} Fields hugepageSize2m
integer
Optional. Amount of 2M hugepages
hugepageSize1g
integer
Optional. Amount of 1G hugepages
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Last updated 2025-05-21 UTC.
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