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MySQL安装1）安装包准备（1）卸载自带的Mysql-libs（如果之前安装过mysql，要全都卸载掉）[bigdata@hadoop102 software]$ rpm -qa | grep -i -E mysql|mariadb | xargs -n1 sudo rpm -e --nodeps（2）将安装包和JDBC驱动上传到/opt/software，共计6个01_mysql-community-common-5.7.16-1.el7.x86_64.rpm02_mysql-communi

cluster.sh#!/bin/bashcase $1 in"start"){ echo ================== 启动 集群 ================== #启动 Zookeeper集群 zk.sh start #启动 Hadoop集群 hdp.sh start #启动 Kafka采集集群 kf.sh start #启动 Flume采集集群

1.2.3.

setting MavenD:\study\maven\apache-maven-3.2.2\conf\settings.xmlproject Structure Modules

linux报错Loading mirror speeds from cached hostfile解决方法1.ping百度显示网络不可达vim /etc/sysconfig/network-scripts/ifcfg-ens33确定上面的文件没问题后重启网络systemctl restart NetworkManagersystemctl restart network再次ping百度 OK了ping www.baidu.com2.yum 出的问题删除yum.repos.d

https://jingyan.baidu.com/article/36d6ed1fa468481bcf48832e.html按此网页步骤操作即可

1.如上图设置“启动或关闭windows功能”，没有Hyper-V的创建一个笔记本将下面的代码放入，更改笔记本名字为Hyper-V.bat。pushd "%~dp0"dir /b %SystemRoot%\servicing\Packages\*Hyper-V*.mum >hyper-v.txtfor /f %%i in ('findstr /i . hyper-v.txt 2^>nul') do dism /online /norestart /add-package:"%Syst.