centos同步yum源到本地
一、环境
os:centos 7.3 1611
应用:yum-utils
互联网源:阿里云
二、步骤
删除/etc/yum.repos.d下所有源文件
1、下载源repo到本地
1 | $ wget -O /etc/yum.repos.d/aliyun.repo https://mirrors.aliyun.com/repo/Centos-7.repo |
2、安装yum-utils提供reporsync服务
1 | $ yum install yum-utils -y |
3、查看yum源仓库标识
1 | [root@localhost yum.repos.d]# yum repolist |
4、根据源标识同步源到本地目录
1 | [root@localhost ~]# reposync -r base -p /var/www/html/ #这里同步base目录到本地 |
注意: 部分互联网yum源不支持同步
Centos7安装独立显卡驱动
1 Centos7 安装独立显卡驱动
1.1 参考:
https://blog.csdn.net/u013378306/article/details/69229919
1.2 安装基础依赖环境
1 | $ Yum install gcc kernel-delve -y |
注意事项,保证内核版本和源码版本一样,否则,安装报错误6:
查看内核版本:1
$ ls /boot | grep vmlinu
查看源码包版本
1 | rpm -aq | grep kernel-devel |
从上面的输出中可以看出内核版本号和内核源码版本。为了解决这个错误,需要从FC官方网站上下载与内核版本对应的源码包进行安装。
可以在以下网站下载并安装:
http://rpmfind.net/linux/rpm2html/search.php?query=kernel-devel
1.3 源码安装
1.3.1 在英伟达官网下载相应驱动
搜索出相应的驱动后,不要直接点,而是右健,Save Link as…
否则,会出现下载半天没动静的情况。
存放的路径上最好不要有中文。
我存放的路径是 ~/Downloads/NVIDIA-Linux-x86_64-346.47.run
1.3.2 屏蔽默认带有的nouveau
使用su命令切换到root用户下: su root
打开/lib/modprobe.d/dist-blacklist.conf
1 | # 将nvidiafb注释掉。 |
1.3.3 重建initramfs image步骤
1 | $ mv /boot/initramfs-$(uname -r).img /boot/initramfs-$(uname -r).img.bak |
1.3.4 修改运行级别为文本模式
1 | $ systemctl set-default multi-user.target |
1.3.5 重新启动, 使用root用户登陆
1 | $ reboot |
1.3.6 查看nouveau是否已经禁用
1 | ls mod | grep nouveau |
如果没有显示相关的内容,说明已禁用。
1.3.7 进入下载的驱动所在目录
1 | $ chmod +x NVIDIA-Linux-x86_64-346.47.run |
安装过程中,选择accept
如果提示要修改xorg.conf,选择yes
1.3.8 修改运行级别回图形模式
1 | systemctl set-default graphical.target |
1.3.9 重新启动,OK
在Applications–Other可以看见NVIDIA X Server Settings菜单。
1.4 问题:
错误1:
1 | ERROR: The Nouveau kernel driver is currently in use by your system. This driver is incompatible with the NVIDIA driver, and must be disabled before proceeding. Please consult the NVIDIA driver README and your Linux distribution's documentation for details on how to correctly disable the Nouveau kernel driver. |
解释:如果没有执行屏蔽nouveau操作,报以上错误。
错误2:
1 | unable to find the development too 'cc' in you path; please make sure that you have the package 'gcc |
解决办法:
1 | $ yum install gcc |
错误3:
1 | ERROR: Unable to find the kernel source tree for the currently running kernel. Please make sure you have installed the kernel source files for your |
解决办法:1
$ yum install kernel-delve
错误5:
1 | ERROR: Unable to find the kernel source tree for the currently running kernel. Please make sure you have installed the kernel source files for your kernel and that they are properly configured; on Red Hat Linux systems, for example, be sure you have the 'kernel-source' or 'kernel-devel' RPM installed. If you know the correct kernel source files are installed, you may specify the kernel source path with the '--kernel-source-path' command line option. |
解决方法:
1 | $ ./NVIDIA-Linux-x86_64-390.67.run --kernel-source-path=/usr/src/kernels/3.10.0-862.3.2.el7.x86_64/ |
错误6:
1 | ERROR: Unable to load the kernel module 'nvidia.ko'. This happens most frequently when this kernel module was built against the wrong or improperly configured kernel sources, with a version of gcc that differs from the one used to build the target kernel, or if another driver, such as nouveau, is present and prevents the NVIDIA kernel module from obtaining ownership of the NVIDIA GPU(s), or no NVIDIA GPU installed in this system is supported by this NVIDIA Linux graphics driver release. |
Please see the log entries 'Kernel module load error' and 'Kernel messages' at the end of the file '/var/log/nvidia-installer.log' for more information.
解决办法:
可以通过以下方式查看内核版本和源码包版本:
ls /boot | grep vmlinuz
如果上面的命令输出中有多个内核,则按grub.conf中指定的文件为准。
rpm -aq | grep kernel-devel
kernel-devel-2.6.35.13-92.fc14.i686
从上面的输出中可以看出内核版本号和内核源码版本。为了解决这个错误,需要从FC官方网站上下载与内核版本对应的源码包进行安装。
可以在以下网站下载并安装:
http://rpmfind.net/linux/rpm2html/search.php?query=kernel-devel
备注:执行更新内核操作好需要重新执行屏蔽nouveau,及重建initramfs image步骤。
警告:
1 | ** |
字符模式安装警告信息,可忽略。
2 安装cuda
参考:https://blog.csdn.net/claroja/article/details/81034147
错误:
1 | Installing the CUDA Toolkit in /usr/local/cuda-6.5 ... |
解决:安装第三方软件
1 | $ yum install freeglut-devel libX11-devel libXi-devel libXmu-devel \ |
2.1 测试CUDA
1 | [root@fengyun6 ~]# find / -name deviceQuery |
若出现以下信息,则表示安装成功
1 | [root@fengyun6 ~]# /usr/local/cuda-9.0/extras/demo_suite/deviceQuery |
安装cudnn
参考:https://www.cnblogs.com/mar-q/p/7482720.html
下载:https://developer.nvidia.com/rdp/cudnn-archive
3 安装cudnn
1 | $ tar -xvf cudnn-8.0-linux-x64-v6.0.tgz -C /usr/local/ |
jenkins各种触发方式介绍
触发远程构建
使用svn存储库hooks的post-commit,调用jenkins的api触发job。(存储库更新即触发构建,不能针对某个分支目录更新触发)
Build after other projects are built
某个projects触发构建后执行构建
Build periodically
Build periodically:周期进行项目构建(它不care源码是否发生变化),我的配置如下:
0 2 * (每天2:00 必须build一次源码)
Poll SCM
Poll SCM:定时检查源码变更(根据SCM软件的版本号),如果有更新就checkout最新code下来,然后执行构建动作。我的配置如下:
/5 * (每5分钟检查一次源码变化)可针对某个分支目录更新触发构建
Nginx反向代理报504超时错误
一、nginx+tomcat
后端为tomcat,nginx代理报504超时错误。
问题描述:
#错误
1 | 1.198.17.123 - - [06/Jul/2018:01:48:57 +0000] "POST /mapbj3/getticket HTTP/1.1" 504 537 "https://XXXXXXXXXX.com/walkcode3/index.html?openId=oB6UW0cF3Z_dnYXnz4tG4OFt7Rt0" "Mozilla/5.0 (Linux; Android 8.1; PACM00 Build/O11019; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/53.0.2785.143 Crosswalk/24.53.595.0 XWEB/155 MMWEBSDK/19 Mobile Safari/537.36 MicroMessenger/6.6.6.1300(0x26060638) NetType/WIFI Language/zh_CN MicroMessenger/6.6.6.1300(0x26060638) NetType/WIFI Language/zh_CN miniProgram" "-" |
1、项目本地访问没问题,通过nginx访问报504错误;
2、重启nginx后正常,反复发生,其它项目代理没有问题;
3、搜索了一大推”NGINX 504 Gateway Time-out tomcat”,都是与php有关的,而默认优化的就是php配置的;
问题处理:
修改/etc/nginx/nginx.conf,添加如下信息
1 | # cat /etc/nginx/nginx.conf |
二、nginx+php(未验证)
问题如上,问题处理添加如下内容
1 | user nginx; |
参考文档
https://blog.csdn.net/lcj_star/article/details/76672748https://www.iyunv.com/thread-319236-1-1.html