数据库同步中间件CanalOtter前日篇（2）MySQLInnoDB架构体系!这里写图片描述(http://static.oschina.net/uploads/img/201604/24113828_GCwY.jpg)MySQL体系前端

系统:CentOS7.5安装Apache1.安装yumyinstallhttpd2.开启apache服务systemctlstarthttpd.service3.设置apache服务开机启动systemctlenablehttpd.service4.开启防火墙firewallcmd

1.安装需要的包sudoaptinstallapttransporthttpscacertificatessoftwarepropertiescommoncurl2.添加GPG密钥，并添加Dockerce软件源，这里还是以中国科技大学的Dockerce源为例curlfsSLhttps://mi

1\.下载zookeeper压缩包    \root@localhost(https://my.oschina.net/u/570656)tools\wgethttp://mirrors.shuosc.org/apache/zookeeper/zookeeper3.4.11/zookeeper3.4.11.tar.gz2\.

HTML5（0106）1、文档声明<!DOCTYPEhtml2、字符编码设置<metacharset"UTF8"3、验证(http://validator.w3.org/)HTML5新增的语义化标签

1、添加wireshark用户组sudogroupaddwireshark2、将dumpcap更改为wireshark用户组sudochgrpwireshark/usr/bin/dumpcap3、让wireshark用户组有root权限使用dumpcapsudochm

工具/原料yum库Mysql数据库CentOS6.4\_64bit方法/步骤1.1查看CentOS自带mysql是否已安装。输入：yum list installed | grep mysql2.!(h

示例如下：1、新建Maven项目 asyncexecutor2、pom.xml<projectxmlns"http://maven.apache.org/POM/4.0.0"xmlns:xsi"http://www.w3.org/2001/XMLSchemainstance"xsi:sch

!/usr/bin/pythoncodinggb2312fopen('/var/log/apache2/access.log','r');logf.readline().rstrip();log_homelog.split();printlog_home;iplog_home0;datelog_home

\集合操作工具类：1.判断是否为空：isEmpty()2.判断是否非空：isNotEmpty()代码：importorg.apache.commons.collections.CollectionUtils;importjava.util.Collection;publicclassCollectionUtil{/\\\判