connect to the server
1. Purchase
2. Enter the lightweight application server workbench
3. Remote connection
Options 3: The client uses the account password to connect, set its own password
4. macOS opens the terminal, enter
ssh root@ip
Enter yes as prompted, enter the password you just configured (not your own terminal password) and the
connection is successful
https://www.jianshu.com/p/32f45acf94fd?spm=a311a.7996332.0.0.308f3080kh5zKU
download jdk
1. Check if jdk is installed
[root@iZ4zeaehxxqhrn553tblkkZ /]# yum list installed |grep java
2. Install 1.8 online
[root@iZ4zeaehxxqhrn553tblkkZ /]# yum -y install java-1.8.0-openjdk
3. After the installation is complete, check the version information
[root@iZ4zeaehxxqhrn553tblkkZ /]# java -version
https://blog.csdn.net/xiaoyu19910321/article/details/106291856
Where is the installation path?
https://blog.csdn.net/weixin_33542589/article/details/114470682?utm_medium=distribute.pc_relevant.none-task-blog-2%7Edefault%7EBlogCommendFromMachineLearnPai2%7Edefault-2.control&depth_1-utm_source=distribute.pc_relevant.none- task-blog-2%7Edefault%7EBlogCommendFromMachineLearnPai2%7Edefault-2.control
Configure environment variables
Use yum to install directly on CentOS8, and the environment variables are automatically configured
https://www.cnblogs.com/peach/p/13662082.html
Download and configure zookeeper
https://blog.csdn.net/root_zhb/article/details/116083452
Record several important steps‼ ️
1. Installation path: /usr/local/zookeeper-3.4.9
2. Created a soft connection: /usr/local/zookeeper
3. Modified dataDir=/usr/local/zookeeper/data in the configuration file
start zookeeper
/usr/local/zookeeper/bin
server start
zkServer.sh start
client start
./zkCli.sh
After success see:
WATCHER::
WatchedEvent state:SyncConnected type:None path:null
View zookeeper nodes
ls /
get /zookeeper
Configure port 2181 firewall on Alibaba Cloud
Application type: Custom
Protocol: tcp
Port: 2181/2888 (here is casual, the Internet says 2181/2181, but the new rules do not allow the same port number to be written.
After the configuration is completed, there is no need to restart, and no need to use any command to enable Firewall takes effect
https://www.aliyunfuwuqi.com/help/2778/