Management 参数介绍

最近更新时间：2023-05-17 15:40:25

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功能概览
Management 参数为节点常用自定义配置提供了统一的入口，您可通过该入口为原生节点底层的内核参数 KernelArgs 进行调优，同时支持设置 Nameservers\\Hosts 来满足业务部署的环境要求。
Management 参数项
参数项
描述
Nameservers
设置业务部署环境需要 DNS 服务器地址。
Hosts
设置业务部署环境所需要的 Hosts。
KernelArgs
设置内核参数对业务进行性能调优（该功能目前白名单开放，可 提交工单 申请）。
说明
为确保系统组件的正常安装，原生节点默认注入腾讯云官方资料库地址 nameserver = 183.60.83.19、nameserver = 183.60.82.98。
KernelArgs 参数
下面列出了支持调整的 OS 参数和接受的值。
套接字和网络优化：
对于预期会处理大量并发会话的代理节点，您可以使用下面的 TCP 和网络选项调整。
编号
参数
默认值
允许的值 / 范围
参数类型
范围
1
"net.core.somaxconn"
32768
4096 - 3240000
int
The maximum length of the listening queue for each port in the system.
2
"net.ipv4.tcp_max_syn_backlog"
8096
1000 - 3240000
int
The maximum length of tcp SYN queue length.
3
"net.core.rps_sock_flow_entries"
8192
1024 - 536870912
int
The maximum size of hash table for RPS.
4
"net.core.rmem_max"
16777216
212992 - 134217728
int
The maximum size, in bytes, of the receive socket buffer.
5
"net.core.wmem_max"
16777216
212992 - 134217728
int
The maximum size, in bytes, of the send socket buffer.
6
"net.ipv4.tcp_rmem"
"4096 12582912 16777216"
1024 - 2147483647
string
The min/default/max size of tcp socket receive buffer.
7
"net.ipv4.tcp_wmem"
"4096 12582912 16777216"
1024 - 2147483647
string
The min/default/max size of tcp socket send buffer.
8
"net.ipv4.neigh.default.gc_thresh1"
2048
128 - 80000
int
The minimum number of entries that can be retained. If the number of entries is less than this value, the entries will not be recycled.
9
"net.ipv4.neigh.default.gc_thresh2"
4096
512 - 90000
int
When the number of entries exceeds this value, the GC will clear the entries longer than 5 seconds.
10
"net.ipv4.neigh.default.gc_thresh3"
8192
1024 - 100000
int
Maximum allowable number of non-permanent entries.
11
"net.ipv4.tcp_max_orphans"
32768
4096 - 2147483647
int
Maximal number of TCP sockets not attached to any user file handle, held by system. Increase this parameter properly to avoid the 'Out of socket memory' error when the load is high.
12
"net.ipv4.tcp_max_tw_buckets"
32768
4096 - 2147483647
int
Maximal number of timewait sockets held by system simultaneously. Increase this parameter properly to avoid &quot;TCP: time wait bucket table overflow&quot; error.
文件句柄限制：
在为大量流量提供服务时，所服务的流量通常来自大量本地文件。 您可以略微调整以下内核设置和内置限制，以便只占用部分系统内存来处理更大的量。
编号
参数
默认值
允许的值 / 范围
参数类型
范围
1
"fs.file-max"
3237991
8192 - 12000500
int
Limit on the total number of fd, including socket, in the entire system.
2
"fs.inotify.max_user_instances"
8192
1024 - 2147483647
int
Limit on the total number of inotify instances.
3
"fs.inotify.max_user_watches"
524288
781250 - 2097152
int
The total number of inotify watches is limited. Increase this parameter to avoid &quot;Too many open files&quot; errors.
虚拟内存：
以下设置可用于调整 Linux 内核虚拟内存 (VM) 子系统的操作以及向磁盘进行脏数据的 writeout。
编号
参数
默认值
允许的值 / 范围
参数类型
范围
1
"vm.max_map_count"
262144
65530 - 262144
int
The maximum number of memory map areas a process may have.
工作线程限制：
编号
参数
默认值
允许的值 / 范围
参数类型
范围
1
"kernel.threads-max"
4194304
4096 - 4194304
int
The system-wide limit on the number of threads (tasks) that can be created on the system.
2
"kernel.pid_max"
4194304
4096 - 4194304
int
PIDs greater than this value are not allocated; thus, the value in this file also acts as a system-wide limit on the total number of processes and threads.
为节点设置 Management 参数
通过控制台操作
方式1：为新增节点设置 Management 参数
1. 登录 容器服务控制台，参考 新建原生节点 文档创建原生节点。
2. 在“新建节点池”页面，单击更多设置，为节点设置 Management 参数。如下图所示：
﻿
﻿
3. 单击创建节点池即可。
方式2：为已有节点设置 Management 参数
1. 登录 容器服务控制台，选择左侧导航栏中的集群。
2. 在集群列表页中，单击集群 ID，进入该集群详情页。
3. 选择左侧菜单栏中的节点管理 > 节点池，进入“节点池列表”页面。
4. 单击节点池 ID，进入“节点列表”页面。
5. 在“详情”页签中，单击参数设置 > 编辑，修改 Management 参数。如下图所示：
﻿
﻿
通过 YAML 操作
apiVersion: node.tke.cloud.tencent.com/v1beta1
kind: MachineSet
spec:
  type: Native
  displayName: mstest
  replicas: 2
  autoRepair: true
  deletePolicy: Random
  instanceTypes:
  - C3.LARGE8
  subnetIDs:
  - subnet-xxxxxxxx
  template:
    spec:
      displayName: mtest
      providerSpec:
        type: Native
        value:
          instanceChargeType: PostpaidByHour
          # 在此处填写 management 参数信息
          management:
            hosts:
            - Hostnames:
              - static.fake.com
              IP: 192.168.2.42
            - Hostnames:
              - common.fake.com
              IP: 192.168.2.45
            nameservers:
            - 183.60.83.19
            - 183.60.82.98
            - 8.8.8.8
            kernelArgs:
            - kernel.pid_max=65535
            - fs.file-max=400000
            - net.ipv4.tcp_rmem="4096 12582912 16777216"
            - vm.max_map_count="65535"
﻿
﻿

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参数项	描述
Nameservers	设置业务部署环境需要 DNS 服务器地址。
Hosts	设置业务部署环境所需要的 Hosts。
KernelArgs	设置内核参数对业务进行性能调优（该功能目前白名单开放，可提交工单申请）。

编号	参数	默认值	允许的值 / 范围	参数类型	范围
1	"net.core.somaxconn"	32768	4096 - 3240000	int	The maximum length of the listening queue for each port in the system.
2	"net.ipv4.tcp_max_syn_backlog"	8096	1000 - 3240000	int	The maximum length of tcp SYN queue length.
3	"net.core.rps_sock_flow_entries"	8192	1024 - 536870912	int	The maximum size of hash table for RPS.
4	"net.core.rmem_max"	16777216	212992 - 134217728	int	The maximum size, in bytes, of the receive socket buffer.
5	"net.core.wmem_max"	16777216	212992 - 134217728	int	The maximum size, in bytes, of the send socket buffer.
6	"net.ipv4.tcp_rmem"	"4096 12582912 16777216"	1024 - 2147483647	string	The min/default/max size of tcp socket receive buffer.
7	"net.ipv4.tcp_wmem"	"4096 12582912 16777216"	1024 - 2147483647	string	The min/default/max size of tcp socket send buffer.
8	"net.ipv4.neigh.default.gc_thresh1"	2048	128 - 80000	int	The minimum number of entries that can be retained. If the number of entries is less than this value, the entries will not be recycled.
9	"net.ipv4.neigh.default.gc_thresh2"	4096	512 - 90000	int	When the number of entries exceeds this value, the GC will clear the entries longer than 5 seconds.
10	"net.ipv4.neigh.default.gc_thresh3"	8192	1024 - 100000	int	Maximum allowable number of non-permanent entries.
11	"net.ipv4.tcp_max_orphans"	32768	4096 - 2147483647	int	Maximal number of TCP sockets not attached to any user file handle, held by system. Increase this parameter properly to avoid the 'Out of socket memory' error when the load is high.
12	"net.ipv4.tcp_max_tw_buckets"	32768	4096 - 2147483647	int	Maximal number of timewait sockets held by system simultaneously. Increase this parameter properly to avoid "TCP: time wait bucket table overflow" error.