useradd admin

mkdir -p /home/admin/oceanbase

rpm -ivh oceanbase-3.2.4.0-100010012022110218.el7.x86_64.rpm

vim /etc/sysctl.conf

/如果在执行vim命令后出现-bash: vim:未找到命令
    执行以下命令
    yum -y install vim-minimal
    yum -y install vim-enhanced
  /
  将以下内容粘贴进sysctl.conf文件中编辑并保存
net.core.somaxconn = 2048
net.core.netdev_max_backlog = 10000
net.core.rmem_default = 16777216
net.core.wmem_default = 16777216
net.core.rmem_max = 16777216
net.core.wmem_max = 16777216

net.ipv4.ip_local_port_range = 3500 65535
net.ipv4.ip_forward = 0
net.ipv4.conf.default.rp_filter = 1
net.ipv4.conf.default.accept_source_route = 0
net.ipv4.tcp_syncookies = 0
net.ipv4.tcp_rmem = 4096 87380 16777216
net.ipv4.tcp_wmem = 4096 65536 16777216
net.ipv4.tcp_max_syn_backlog = 16384
net.ipv4.tcp_fin_timeout = 15
net.ipv4.tcp_max_syn_backlog = 16384
net.ipv4.tcp_tw_reuse = 1
net.ipv4.tcp_tw_recycle = 1
net.ipv4.tcp_slow_start_after_idle=0

vm.swappiness = 0
vm.min_free_kbytes = 2097152
vm.max_map_count=655360
fs.aio-max-nr=1048576

sysctl -p

vim etc/security/limits.conf

* soft nofile 655360
* hard nofile 655360
* soft nproc 655360
* hard nproc 655360
* soft core unlimited
* hard core unlimited
* soft stack unlimited
* hard stack unlimited

ulimit -a

su admin
kill -9 `pidof observer` (注意这里是飘号)
rm -rf /data/1/$cluster_name
rm -rf /data/log1/$cluster_name
rm -rf /home/admin/oceanbase/store/$cluster_name /home/admin/oceanbase/log/* /home/admin/oceanbase/etc/*config*（创建软连接）
ps -ef|grep observer

su - admin
mkdir -p /data/1/$cluster_name/{etc3,sort_dir,sstable} 
mkdir -p /data/log1/$cluster_name/{clog,etc2,ilog,slog,oob_clog} 
mkdir -p /home/admin/oceanbase/store/$cluster_name
for  t in{etc3,sort_dir,sstable};do ln -s /data/1/$cluster_name/$t /home/admin/oceanbase/store/$cluster_name/$t; done
for t in {clog,etc2,ilog,slog,oob_clog};do ln -s /data/log1/$cluster_name/$t /home/admin/oceanbase/store/$cluster_name/$t; done

cd /home/admin/oceanbase
tree store/

rpm -ivh obclient-1.2.6-20210510164331.el7.alios7.x86_64.rpm

/检查是否安装成功/
which obclient

su admin
cd /home/admin/oceanbase && /home/admin/oceanbase/bin/observer -i eth0 -P 2882 -p 2881 -z zone1 -d /home/admin/oceanbase/store/obdemo -r 
'10.10.10.1:2882:2881' -c 10001 -n obdemo -o 
"system_memory=30G,datafile_size=500G,config_additional_dir=/data/1/obdemo/etc3;/data/log1/obdemo/etc2"

su admin
obclient -h127.1 -uroot@sys -P2881 -p
SET SESSION ob_query_timeout=1000000000;
ALTER SYSTEM BOOTSTRAP ZONE 'zone1' SERVER '10.10.10.1:2882';

ALTER USER root IDENTIFIED BY '123456';