centos7 安装erlang出现 configure: error: No usable libatomic_ops implementation found 的处理

centos7 安装erlang出现 configure: error: No usable libatomic_ops implementation found 的处理
configure: error: No usable libatomic_ops implementation foundconfigure: error: /bin/sh '/root/otp_src_19.1/erts/configure' failed for erts

centos7 安装mqtt长连接服务

利用长连接服务跟手机客户端保持即时通讯,比如有需要的通知可以下达到手机客户端、或者升级推送服务,等等

[ERR] Sorry, can't connect to node x.x.x.x:xxxx 问题处理

[ERR] Sorry, can't connect to node x.x.x.x:xxxx 问题处理
启动创建redis集群时,出现以下错误提示:[ERR] Sorry, can't connect to node 172.0.0.180:6379

【zabbix】 - 添加监控主机

【zabbix】 - 添加监控主机
安装完zabbix3之后,接着就是添加其他的服务器来做监控对象。

【zabbix】 - CentOS7 安装 apache、php、mariaDB、zabbix3

【zabbix】 - CentOS7 安装 apache、php、mariaDB、zabbix3
Zabbix was created by Alexei Vladishev, and currently is actively developed and supported by Zabbix SIA.Zabbix is an enterprise-class open source distributed monitoring solution.Zabbix is software that monitors numerous parameters of a network and the health and integrity of servers. Zabbix uses a flexible notification mechanism that allows users to configure e-mail based alerts for virtually any event. This allows a fast reaction to server problems. Zabbix offers excellent reporting and data visualisation features based on the stored data. This makes Zabbix ideal for capacity planning.Zabbix supports both polling and trapping. All Zabbix reports and statistics, as well as configuration parameters, are accessed through a web-based frontend. A web-based frontend ensures that the status of your network and the health of your servers can be assessed from any location. Properly configured, Zabbix can play an important role in monitoring IT infrastructure. This is equally true for small organisations with a few servers and for large companies with a multitude of servers.

配置mysql主从复制

配置mysql主从复制
mysql主从复制原理:slave服务器跟踪master服务器的写操作,然后在slave服务器再执行一遍更改。期间slave服务器会记录执行更改的位置,以便下一次更改的起点位置。

基于centOS7安装mysql-5.7.14

基于centOS7安装mysql-5.7.14
源码安装mysql-5.7.14,目前最新版本。

FastDFS自带的压力测试

FastDFS自带的压力测试
安装完fastDFS之后,需要对其做一些性能测试。

opensuse leap 42.1手动设置屏幕分辨率

opensuse leap 42.1手动设置屏幕分辨率
虚拟机装了个opensuse leap 42.1,发现分辨率调不了跟真实机的分辨同步,折腾了不少时间。

更改opensuse leap 42.1的home目录为英文

更改opensuse leap 42.1的home目录为英文
因为安装opensuse时选择的语言是中文,使用之后,发现home目录下的系统目录都是中文的,命令行下tab不好切换。