array(2) { ["docs"]=> array(10) { [0]=> array(10) { ["id"]=> string(3) "428" ["text"]=> string(77) "Visual Studio 2017 单独启动MSDN帮助（Microsoft Help Viewer）的方法" ["intro"]=> string(288) "目录 ECharts 异步加载 ECharts 数据可视化在过去几年中取得了巨大进展。开发人员对可视化产品的期望不再是简单的图表创建工具，而是在交互、性能、数据处理等方面有更高的要求。 chart.setOption({ color: [ " ["username"]=> string(8) "DonetRen" ["tagsname"]=> string(55) "Visual Studio 2017|MSDN帮助|C#程序|.NET|Help Viewer" ["tagsid"]=> string(23) "[401,402,403,"300",404]" ["catesname"]=> string(0) "" ["catesid"]=> string(2) "[]" ["createtime"]=> string(10) "1511400964" ["_id"]=> string(3) "428" } [1]=> array(10) { ["id"]=> string(3) "427" ["text"]=> string(42) "npm -v；报错 cannot find module "wrapp"" ["intro"]=> string(288) "目录 ECharts 异步加载 ECharts 数据可视化在过去几年中取得了巨大进展。开发人员对可视化产品的期望不再是简单的图表创建工具，而是在交互、性能、数据处理等方面有更高的要求。 chart.setOption({ color: [ " ["username"]=> string(4) "zzty" ["tagsname"]=> string(50) "node.js|npm|cannot find module "wrapp“|node" ["tagsid"]=> string(19) "[398,"239",399,400]" ["catesname"]=> string(0) "" ["catesid"]=> string(2) "[]" ["createtime"]=> string(10) "1511400760" ["_id"]=> string(3) "427" } [2]=> array(10) { ["id"]=> string(3) "426" ["text"]=> string(54) "说说css中pt、px、em、rem都扮演了什么角色" ["intro"]=> string(288) "目录 ECharts 异步加载 ECharts 数据可视化在过去几年中取得了巨大进展。开发人员对可视化产品的期望不再是简单的图表创建工具，而是在交互、性能、数据处理等方面有更高的要求。 chart.setOption({ color: [ " ["username"]=> string(12) "zhengqiaoyin" ["tagsname"]=> string(0) "" ["tagsid"]=> string(2) "[]" ["catesname"]=> string(0) "" ["catesid"]=> string(2) "[]" ["createtime"]=> string(10) "1511400640" ["_id"]=> string(3) "426" } [3]=> array(10) { ["id"]=> string(3) "425" ["text"]=> string(83) "深入学习JS执行--创建执行上下文（变量对象，作用域链，this）" ["intro"]=> string(288) "目录 ECharts 异步加载 ECharts 数据可视化在过去几年中取得了巨大进展。开发人员对可视化产品的期望不再是简单的图表创建工具，而是在交互、性能、数据处理等方面有更高的要求。 chart.setOption({ color: [ " ["username"]=> string(7) "Ry-yuan" ["tagsname"]=> string(33) "Javascript|Javascript执行过程" ["tagsid"]=> string(13) "["169","191"]" ["catesname"]=> string(0) "" ["catesid"]=> string(2) "[]" ["createtime"]=> string(10) "1511399901" ["_id"]=> string(3) "425" } [4]=> array(10) { ["id"]=> string(3) "424" ["text"]=> string(30) "C# 排序技术研究与对比" ["intro"]=> string(288) "目录 ECharts 异步加载 ECharts 数据可视化在过去几年中取得了巨大进展。开发人员对可视化产品的期望不再是简单的图表创建工具，而是在交互、性能、数据处理等方面有更高的要求。 chart.setOption({ color: [ " ["username"]=> string(9) "vveiliang" ["tagsname"]=> string(0) "" ["tagsid"]=> string(2) "[]" ["catesname"]=> string(8) ".Net Dev" ["catesid"]=> string(5) "[199]" ["createtime"]=> string(10) "1511399150" ["_id"]=> string(3) "424" } [5]=> array(10) { ["id"]=> string(3) "423" ["text"]=> string(72) "【算法】小白的算法笔记：快速排序算法的编码和优化" ["intro"]=> string(288) "目录 ECharts 异步加载 ECharts 数据可视化在过去几年中取得了巨大进展。开发人员对可视化产品的期望不再是简单的图表创建工具，而是在交互、性能、数据处理等方面有更高的要求。 chart.setOption({ color: [ " ["username"]=> string(9) "penghuwan" ["tagsname"]=> string(6) "算法" ["tagsid"]=> string(7) "["344"]" ["catesname"]=> string(0) "" ["catesid"]=> string(2) "[]" ["createtime"]=> string(10) "1511398109" ["_id"]=> string(3) "423" } [6]=> array(10) { ["id"]=> string(3) "422" ["text"]=> string(64) "JavaScript数据可视化编程学习（二）Flotr2，雷达图" ["intro"]=> string(288) "目录 ECharts 异步加载 ECharts 数据可视化在过去几年中取得了巨大进展。开发人员对可视化产品的期望不再是简单的图表创建工具，而是在交互、性能、数据处理等方面有更高的要求。 chart.setOption({ color: [ " ["username"]=> string(7) "chengxs" ["tagsname"]=> string(28) "数据可视化|前端学习" ["tagsid"]=> string(9) "[396,397]" ["catesname"]=> string(18) "前端基本知识" ["catesid"]=> string(5) "[198]" ["createtime"]=> string(10) "1511397800" ["_id"]=> string(3) "422" } [7]=> array(10) { ["id"]=> string(3) "421" ["text"]=> string(36) "C#表达式目录树（Expression）" ["intro"]=> string(288) "目录 ECharts 异步加载 ECharts 数据可视化在过去几年中取得了巨大进展。开发人员对可视化产品的期望不再是简单的图表创建工具，而是在交互、性能、数据处理等方面有更高的要求。 chart.setOption({ color: [ " ["username"]=> string(4) "wwym" ["tagsname"]=> string(0) "" ["tagsid"]=> string(2) "[]" ["catesname"]=> string(4) ".NET" ["catesid"]=> string(7) "["119"]" ["createtime"]=> string(10) "1511397474" ["_id"]=> string(3) "421" } [8]=> array(10) { ["id"]=> string(3) "420" ["text"]=> string(47) "数据结构 队列_队列实例：事件处理" ["intro"]=> string(288) "目录 ECharts 异步加载 ECharts 数据可视化在过去几年中取得了巨大进展。开发人员对可视化产品的期望不再是简单的图表创建工具，而是在交互、性能、数据处理等方面有更高的要求。 chart.setOption({ color: [ " ["username"]=> string(7) "idreamo" ["tagsname"]=> string(40) "C语言|数据结构|队列|事件处理" ["tagsid"]=> string(23) "["246","247","248",395]" ["catesname"]=> string(12) "数据结构" ["catesid"]=> string(7) "["133"]" ["createtime"]=> string(10) "1511397279" ["_id"]=> string(3) "420" } [9]=> array(10) { ["id"]=> string(3) "419" ["text"]=> string(47) "久等了,博客园官方Android客户端发布" ["intro"]=> string(288) "目录 ECharts 异步加载 ECharts 数据可视化在过去几年中取得了巨大进展。开发人员对可视化产品的期望不再是简单的图表创建工具，而是在交互、性能、数据处理等方面有更高的要求。 chart.setOption({ color: [ " ["username"]=> string(3) "cmt" ["tagsname"]=> string(0) "" ["tagsid"]=> string(2) "[]" ["catesname"]=> string(0) "" ["catesid"]=> string(2) "[]" ["createtime"]=> string(10) "1511396549" ["_id"]=> string(3) "419" } } ["count"]=> int(200) } 222 centos7 安装 bbr加速 - 爱码网

centos7 安装 bbr加速

1 查看内核版本 

# uname -a

Linux os 3.10.0-1127.13.1.el7.x86_64 x86_64 x86_64 x86_64 GNU/Linux

2 下载安装脚本和运行

# wget -O- http://soft.wellphp.com/scripts/install_bbr_centos.sh | bash

[root@ecs-U9HuM ~]# wget -O- http://soft.wellphp.com/scripts/install_bbr_centos.sh | bash
--2020-09-26 13:57:01--  http://soft.wellphp.com/scripts/install_bbr_centos.sh
Resolving soft.wellphp.com (soft.wellphp.com)... 31.193.141.202
Connecting to soft.wellphp.com (soft.wellphp.com)|31.193.141.202|:80... connected.
HTTP request sent, awaiting response... 302 Moved Temporarily
Location: https://soft.wellphp.com/scripts/install_bbr_centos.sh [following]
--2020-09-26 13:57:02--  https://soft.wellphp.com/scripts/install_bbr_centos.sh
Connecting to soft.wellphp.com (soft.wellphp.com)|31.193.141.202|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 2106 (2.1K) [application/octet-stream]
Saving to: ‘STDOUT’

100%[===============================================================================================================>] 2,106       --.-K/s   in 0s      

2020-09-26 13:57:03 (73.7 MB/s) - written to stdout [2106/2106]

Now I will replace the system kernel to 4.9.13-1...
Start installing
grep: /usr/share/dracut/modules.d/90kernel-modules/installkernel: No such file or directory
Retrieving http://soft.wellphp.com/kernels/x86_64/kernel-ml-4.9.13-1.el7.centos.x86_64.rpm
Preparing...                          ################################# [100%]
Updating / installing...
   1:kernel-ml-4.9.13-1.el7.centos    ################################# [100%]
Checking if the installtion is ok
Loaded plugins: fastestmirror
Determining fastest mirrors
epel/x86_64/metalink                                                                                                              |  19 kB  00:00:00     
 * base: mirrors.radwebhosting.com
 * epel: d2lzkl7pfhq30w.cloudfront.net
 * extras: repos.lax.layerhost.com
 * updates: mirror.hostduplex.com
base                                                                                                                              | 3.6 kB  00:00:00     
epel                                                                                                                              | 4.7 kB  00:00:00     
extras                                                                                                                            | 2.9 kB  00:00:00     
updates                                                                                                                           | 2.9 kB  00:00:00     
(1/7): base/7/x86_64/group_gz                                                                                                     | 153 kB  00:00:02     
epel/x86_64/updateinfo         FAILED                                          
http://mirror.kinamo.be/epel/7/x86_64/repodata/f5ee0dd805d88716cb58f3ae3c0331aeb37f345cffcd8384eba3dd253cef71ce-updateinfo.xml.bz2: [Errno 14] HTTP Error 404 - Not Found
Trying other mirror.
To address this issue please refer to the below wiki article 

https://wiki.centos.org/yum-errors

If above article doesn't help to resolve this issue please use https://bugs.centos.org/.

(2/7): extras/7/x86_64/primary_db                                                                                                 | 206 kB  00:00:01     
(3/7): epel/x86_64/group_gz                                                                                                       |  95 kB  00:00:03     
(4/7): epel/x86_64/updateinfo                                                                                                     | 1.0 MB  00:00:01     
(5/7): updates/7/x86_64/primary_db                                                                                                | 4.5 MB  00:00:04     
(6/7): epel/x86_64/primary_db                                                                                                     | 6.9 MB  00:00:09     
(7/7): base/7/x86_64/primary_db                                                                                                   | 6.1 MB  00:00:10     
Resolving Dependencies
--> Running transaction check
---> Package grub2-tools.x86_64 1:2.02-0.76.el7.centos.1 will be updated
--> Processing Dependency: grub2-tools = 1:2.02-0.76.el7.centos.1 for package: 1:grub2-pc-2.02-0.76.el7.centos.1.x86_64
--> Processing Dependency: grub2-tools = 1:2.02-0.76.el7.centos.1 for package: 1:grub2-tools-extra-2.02-0.76.el7.centos.1.x86_64
---> Package grub2-tools.x86_64 1:2.02-0.86.el7.centos will be an update
--> Processing Dependency: grub2-tools-minimal = 1:2.02-0.86.el7.centos for package: 1:grub2-tools-2.02-0.86.el7.centos.x86_64
--> Processing Dependency: grub2-common = 1:2.02-0.86.el7.centos for package: 1:grub2-tools-2.02-0.86.el7.centos.x86_64
--> Running transaction check
---> Package grub2-common.noarch 1:2.02-0.76.el7.centos.1 will be updated
--> Processing Dependency: grub2-common = 1:2.02-0.76.el7.centos.1 for package: 1:grub2-pc-modules-2.02-0.76.el7.centos.1.noarch
---> Package grub2-common.noarch 1:2.02-0.86.el7.centos will be an update
---> Package grub2-pc.x86_64 1:2.02-0.76.el7.centos.1 will be updated
--> Processing Dependency: grub2-pc = 1:2.02-0.76.el7.centos.1 for package: 1:grub2-2.02-0.76.el7.centos.1.x86_64
---> Package grub2-pc.x86_64 1:2.02-0.86.el7.centos will be an update
---> Package grub2-tools-extra.x86_64 1:2.02-0.76.el7.centos.1 will be updated
---> Package grub2-tools-extra.x86_64 1:2.02-0.86.el7.centos will be an update
---> Package grub2-tools-minimal.x86_64 1:2.02-0.76.el7.centos.1 will be updated
---> Package grub2-tools-minimal.x86_64 1:2.02-0.86.el7.centos will be an update
--> Running transaction check
---> Package grub2.x86_64 1:2.02-0.76.el7.centos.1 will be updated
---> Package grub2.x86_64 1:2.02-0.86.el7.centos will be an update
---> Package grub2-pc-modules.noarch 1:2.02-0.76.el7.centos.1 will be updated
---> Package grub2-pc-modules.noarch 1:2.02-0.86.el7.centos will be an update
--> Finished Dependency Resolution

Dependencies Resolved

=========================================================================================================================================================
 Package                                   Arch                         Version                                      Repository                     Size
=========================================================================================================================================================
Updating:
 grub2-tools                               x86_64                       1:2.02-0.86.el7.centos                       updates                       1.8 M
Updating for dependencies:
 grub2                                     x86_64                       1:2.02-0.86.el7.centos                       updates                        32 k
 grub2-common                              noarch                       1:2.02-0.86.el7.centos                       updates                       729 k
 grub2-pc                                  x86_64                       1:2.02-0.86.el7.centos                       updates                        32 k
 grub2-pc-modules                          noarch                       1:2.02-0.86.el7.centos                       updates                       850 k
 grub2-tools-extra                         x86_64                       1:2.02-0.86.el7.centos                       updates                       1.0 M
 grub2-tools-minimal                       x86_64                       1:2.02-0.86.el7.centos                       updates                       174 k

Transaction Summary
=========================================================================================================================================================
Upgrade  1 Package (+6 Dependent packages)

Total download size: 4.5 M
Downloading packages:
Delta RPMs disabled because /usr/bin/applydeltarpm not installed.
(1/7): grub2-2.02-0.86.el7.centos.x86_64.rpm                                                                                      |  32 kB  00:00:01     
(2/7): grub2-pc-2.02-0.86.el7.centos.x86_64.rpm                                                                                   |  32 kB  00:00:02     
(3/7): grub2-tools-extra-2.02-0.86.el7.centos.x86_64.rpm                                                                          | 1.0 MB  00:00:01     
(4/7): grub2-common-2.02-0.86.el7.centos.noarch.rpm                                                                               | 729 kB  00:00:03     
(5/7): grub2-pc-modules-2.02-0.86.el7.centos.noarch.rpm                                                                           | 850 kB  00:00:03     
(6/7): grub2-tools-2.02-0.86.el7.centos.x86_64.rpm                                                                                | 1.8 MB  00:00:03     
(7/7): grub2-tools-minimal-2.02-0.86.el7.centos.x86_64.rpm                                                                        | 174 kB  00:00:02     
---------------------------------------------------------------------------------------------------------------------------------------------------------
Total                                                                                                                    1.0 MB/s | 4.5 MB  00:00:04     
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Warning: RPMDB altered outside of yum.
  Updating   : 1:grub2-common-2.02-0.86.el7.centos.noarch                                                                                           1/14 
  Updating   : 1:grub2-tools-minimal-2.02-0.86.el7.centos.x86_64                                                                                    2/14 
  Updating   : 1:grub2-tools-2.02-0.86.el7.centos.x86_64                                                                                            3/14 
  Updating   : 1:grub2-tools-extra-2.02-0.86.el7.centos.x86_64                                                                                      4/14 
  Updating   : 1:grub2-pc-modules-2.02-0.86.el7.centos.noarch                                                                                       5/14 
  Updating   : 1:grub2-pc-2.02-0.86.el7.centos.x86_64                                                                                               6/14 
  Updating   : 1:grub2-2.02-0.86.el7.centos.x86_64                                                                                                  7/14 
  Cleanup    : 1:grub2-2.02-0.76.el7.centos.1.x86_64                                                                                                8/14 
  Cleanup    : 1:grub2-pc-2.02-0.76.el7.centos.1.x86_64                                                                                             9/14 
  Cleanup    : 1:grub2-tools-extra-2.02-0.76.el7.centos.1.x86_64                                                                                   10/14 
  Cleanup    : 1:grub2-pc-modules-2.02-0.76.el7.centos.1.noarch                                                                                    11/14 
  Cleanup    : 1:grub2-tools-2.02-0.76.el7.centos.1.x86_64                                                                                         12/14 
  Cleanup    : 1:grub2-tools-minimal-2.02-0.76.el7.centos.1.x86_64                                                                                 13/14 
  Cleanup    : 1:grub2-common-2.02-0.76.el7.centos.1.noarch                                                                                        14/14 
  Verifying  : 1:grub2-tools-minimal-2.02-0.86.el7.centos.x86_64                                                                                    1/14 
  Verifying  : 1:grub2-pc-2.02-0.86.el7.centos.x86_64                                                                                               2/14 
  Verifying  : 1:grub2-common-2.02-0.86.el7.centos.noarch                                                                                           3/14 
  Verifying  : 1:grub2-tools-extra-2.02-0.86.el7.centos.x86_64                                                                                      4/14 
  Verifying  : 1:grub2-tools-2.02-0.86.el7.centos.x86_64                                                                                            5/14 
  Verifying  : 1:grub2-2.02-0.86.el7.centos.x86_64                                                                                                  6/14 
  Verifying  : 1:grub2-pc-modules-2.02-0.86.el7.centos.noarch                                                                                       7/14 
  Verifying  : 1:grub2-tools-extra-2.02-0.76.el7.centos.1.x86_64                                                                                    8/14 
  Verifying  : 1:grub2-common-2.02-0.76.el7.centos.1.noarch                                                                                         9/14 
  Verifying  : 1:grub2-tools-2.02-0.76.el7.centos.1.x86_64                                                                                         10/14 
  Verifying  : 1:grub2-2.02-0.76.el7.centos.1.x86_64                                                                                               11/14 
  Verifying  : 1:grub2-pc-modules-2.02-0.76.el7.centos.1.noarch                                                                                    12/14 
  Verifying  : 1:grub2-tools-minimal-2.02-0.76.el7.centos.1.x86_64                                                                                 13/14 
  Verifying  : 1:grub2-pc-2.02-0.76.el7.centos.1.x86_64                                                                                            14/14 

Updated:
  grub2-tools.x86_64 1:2.02-0.86.el7.centos                                                                                                              

Dependency Updated:
  grub2.x86_64 1:2.02-0.86.el7.centos              grub2-common.noarch 1:2.02-0.86.el7.centos        grub2-pc.x86_64 1:2.02-0.86.el7.centos             
  grub2-pc-modules.noarch 1:2.02-0.86.el7.centos   grub2-tools-extra.x86_64 1:2.02-0.86.el7.centos   grub2-tools-minimal.x86_64 1:2.02-0.86.el7.centos  

Complete!
 
Installation is completed, now you can reboot the system. 
You should check BBR after the rebooting using command: 
 
     sysctl -a|grep congestion_control

3 安装成功后确认是否生效（显示BBR则成功）

[root@ecs-U9HuM ~]# sysctl -a|grep congestion_control

net.ipv4.tcp_allowed_congestion_control = bbr reno
net.ipv4.tcp_available_congestion_control = bbr reno cubic
net.ipv4.tcp_congestion_control = bbr
sysctl: reading key "net.ipv6.conf.all.stable_secret"
sysctl: reading key "net.ipv6.conf.default.stable_secret"
sysctl: reading key "net.ipv6.conf.eth0.stable_secret"
sysctl: reading key "net.ipv6.conf.eth1.stable_secret"
sysctl: reading key "net.ipv6.conf.lo.stable_secret"

 

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