Confluence 清理卸载重装

Categories 学习笔记

Confluence 安装中断报错

The SystemInformationService could not be retrieved from the container. Therefore very limited information is available in this error report.
The SystemInformationService could not be retrieved due to the following error: java.lang.IllegalStateException: Spring Application context has not been set
Cause
com.atlassian.util.concurrent.LazyReference$InitializationException: java.lang.IllegalStateException: Spring Application context has not been set
    at com.atlassian.util.concurrent.LazyReference.getInterruptibly(LazyReference.java:149)

caused by: java.lang.IllegalStateException: Spring Application context has not been set
    at com.atlassian.spring.container.SpringContainerContext.getComponent(SpringContainerContext.java:48)
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yum update 出现的问题

Categories 学习笔记

出现 Found *** pre-existing rpmdb problem(s)

Error: python-devel conflicts with python-2.7.5-80.el7_6.x86_64
 You could try using --skip-broken to work around the problem
** Found 10 pre-existing rpmdb problem(s), 'yum check' output follows:
firewalld-filesystem-0.6.3-2.el7_7.1.noarch is a duplicate with firewalld-filesystem-0.5.3-5.el7.noarch
python-2.7.5-86.el7.x86_64 is a duplicate with python-2.7.5-80.el7_6.x86_64
python-firewall-0.6.3-2.el7_7.1.noarch is a duplicate with python-firewall-0.5.3-5.el7.noarch
python-libs-2.7.5-86.el7.x86_64 is a duplicate with python-libs-2.7.5-80.el7_6.x86_64
urw-base35-bookman-fonts-20170801-10.el7.noarch has installed conflicts urw-fonts < ('3', '2.4', '25'): urw-fonts-2.4-16.el7.noarch
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MySQL Windows 环境连接慢的问题

Categories 学习笔记

MySQL localhost 连接慢

在 Windows 上开发应用连接到 MySQL 数据库时，若使用本地连接需要延迟 1s 后才能打开

将服务器地址 localhost 修改为 127.0.0.1 速度就变得正常了

所以问题在于 localhost 的解析问题

使用 localhost 程序解析出来的是 ipv6 地址 ::1 ，但 MySQL 监听的是 ipv4 的地址 127.0.0.1，ipv6 连不上超时后会再去连接 ipv4 地址 127.0.0.1, 这就是这个1秒钟延迟出现的原因

解决方法，使用 127.0.0.1 代替 localhost

phpMyAdmin 配置修改方法

文件目录

phpMyAdmin\libraries\config.default.php

$cfg['Servers'][$i]['host'] = '127.0.0.1';

腾讯云 SSH 登录慢的问题

Categories 学习笔记

编辑 SSHD 配置

vim /etc/ssh/sshd_config

将 GSSAPIAuthentication 的设置由 yes 改为 no

将 UseDNS 设置修改为 no

重启服务：service sshd restart

核实目录下 /var/log/btmp 文件是否过大

删除它

rm -rf /var/log/btmp
# 或者
touch /var/log/btmp

Ubuntu下 apt-mirror 搭建内网本地源

Categories 学习笔记

安装 apt-mirror

sudo apt install apt-mirror
sudo vi /etc/apt/mirror.list

参考以下配置文件：（清空原有的配置文件，直接使用以下配置文件即可）

############# config ##################
# 以下注释的内容都是默认配置，如果需要自定义，取消注释修改即可
set base_path /var/spool/apt-mirror
#
# 镜像文件下载地址
# set mirror_path $base_path/mirror
# 临时索引下载文件目录，也就是存放软件仓库的dists目录下的文件（默认即可）
# set skel_path $base_path/skel
# 配置日志（默认即可）
# set var_path $base_path/var
# clean脚本位置
# set cleanscript $var_path/clean.sh
# 架构配置，i386/amd64，默认的话会下载跟本机相同的架构的源
set defaultarch amd64
# set postmirror_script $var_path/postmirror.sh
# set run_postmirror 0
# 下载线程数
set nthreads 20
set _tilde 0
#
############# end config ##############
# Ali yun（这里没有添加deb-src的源）
deb http://mirrors.aliyun.com/ubuntu/ trusty main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ trusty-security main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ trusty-updates main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ trusty-proposed main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ trusty-backports main restricted universe multiverse
 
clean http://mirrors.aliyun.com/ubuntu
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