翼鸥教育实践：手动部署 OceanBase 三副本集群

2022-02-21 00:00:00 用户服务器时间查看租户

作者简介：罗呈祥，数据库管理员。

手动部署 ob 三副本集群

1. IP地址和机器规划

机器os ：centos 7.5 8c12g

2. 初始化机器

2.1 修改内核参数


cat << EOF >> /etc/sysctl.conf

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 = 
net.ipv4.conf.default.rp_filter = 1
net.ipv4.conf.default.accept_source_route = 
net.ipv4.tcp_syncookies = 
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=

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

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