TIDB集群配置

ゞ浴缸里的玫瑰 2022-05-28 04:05 176阅读 0赞

TiDB Ansible 部署方案 （官方推荐至少部署 3 个 TiKV， 3 个 PD，2 个 TiDB）  
https://github.com/pingcap/docs-cn/blob/master/op-guide/ansible-deployment.md  
  
  
  
  
\#使用 Ansible 方式部署时，TiKV 及 PD 节点数据目录所在磁盘请使用 SSD 磁盘，否则无法通过检测  
\#数据盘请使用 ext4 文件系统，挂载 ext4 文件系统时请添加 nodelalloc 挂载参数，可参考数据盘 ext4 文件系统挂载参数。  
\# vi /etc/fstab    /dev/sdb1 /u01 ext4 defaults,nodelalloc,noatime 0 2  
  
以上需要使用ssd，只是官方由于性能问题，推荐这么做，实际 1核2G内存，80G的机械硬盘，在初始化的时候会抛出警告性能，测试环境可以无视  
  
  
\#所有服务器关闭防火墙  
systemctl stop firewalld  
systemctl disable firewalld  
  
  
  
  
\#所有服务器机器的时间、时区设置一致，开启 NTP 服务且在正常同步时间  （centos7.2以后自带chronyd时间同步服务需要停止）  
systemctl disable chronyd  
systemctl stop chronyd  
yum install -y ntp  
systemctl enable ntpd  
\#ntpdate pool.ntp.org  
systemctl restart ntpd  
ntpstat  
  
  
  
  
  
  
\#中控机器上安装 Ansible 并查看对应版本，确保是 Ansible 2.4 及以上版本  
yum install -y epel-release ansible curl git  
ansible --version  
  
  
  
  
\#在中控机器上 创建 tidb  用户  
useradd  -u 1200  tidb  
\#passwd tidb  
su - tidb  
ssh-keygen -t rsa  
  
  
  
  
\#中控机器上下载 TiDB-Ansible  （生产环境请下载 GA 版本部署 TiDB）  
cd /home/tidb  
git clone -b release-1.0 https://github.com/pingcap/tidb-ansible.git  
  
  
  
  
\#配置tidb 用户可以免密码 sudo 到 root 用户，可参考如何配置 ssh 互信及 sudo 免密码  
cd tidb-ansible  
cat > hosts.ini << EOF  
\[servers\]  
192.168.121.206  
192.168.121.207  
192.168.121.208  
192.168.121.216  
192.168.121.217  
192.168.121.218  
192.168.121.226  
192.168.121.227  
192.168.121.228  
  
  
\[all:vars\]  
username = tidb  
ntp\_server = pool.ntp.org  
EOF  
  
  
\#执行以下命令，按提示输入部署目标机器 root 密码  
ansible-playbook -i hosts.ini create\_users.yml -k  
  
  
\# 验证 ssh 互信及 sudo 免密码  
\#\[tidb@localhost tidb-ansible\]$ ssh 192.168.121.\*  
\#\[tidb@localhost ~\]$ sudo su -  
\#\[root@localhost tidb\]\#   
  
  
  
  
\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#分配机器资源，编辑 inventory.ini 文件  
cat > inventory.ini << EOF  
\#\# TiDB Cluster Part  
\[pd\_servers\]  
192.168.121.206  
192.168.121.207  
192.168.121.208  
  
  
\#自定义客户端连接端口  
\[tidb\_servers\]  
192.168.121.216  tidb\_port=5919  
192.168.121.217  tidb\_port=5919  
192.168.121.218  tidb\_port=5919  
  
  
\[tikv\_servers\]  
192.168.121.226  labels="host=tikv1"  
192.168.121.227  labels="host=tikv2"  
192.168.121.228  labels="host=tikv3"  
  
  
\[spark\_master\]  
  
  
\[spark\_slaves\]  
  
  
\#\# Monitoring Part  
\# prometheus and pushgateway servers  
\[monitoring\_servers\]  
192.168.121.216  
  
  
\[grafana\_servers\]  
192.168.121.216  
  
  
\# node\_exporter servers  
\[monitored\_servers\]  
192.168.121.206  
192.168.121.207  
192.168.121.208  
192.168.121.216  
192.168.121.217  
192.168.121.218  
192.168.121.226  
192.168.121.227  
192.168.121.228  
  
  
\#\# Binlog Part  
\[pump\_servers:children\]  
tidb\_servers  
  
  
\#\# Group variables  
\[pd\_servers:vars\]  
\# location\_labels = \["zone","rack","host"\]  
  
  
\#\# Global variables  
\[all:vars\]  
deploy\_dir = /u01/tidata  
  
  
\#\# Connection  
\# ssh via normal user  
ansible\_user = tidb  
  
  
\# ssh via root:  
\# ansible\_user = root  
\# ansible\_become = true  
\# ansible\_become\_user = tidb  
  
  
cluster\_name = tidb-cluster  
  
  
tidb\_version = v1.0.8  
  
  
\# 部署方式，默认为 binary \[binary, docker\]  
deployment\_method = binary  
  
  
\# 进程监管方式 \[systemd, supervise\]  
process\_supervision = systemd  
  
  
\# timezone of deployment region  
timezone = Asia/Shanghai  
set\_timezone = True  
  
  
enable\_firewalld = False  
\# check NTP service  
enable\_ntpd = True  
machine\_benchmark = True  
\# 根据 IP 修改部署目标机器主机名  
set\_hostname = False  
  
  
\#\# binlog trigger  
enable\_binlog = False  
\# zookeeper address of kafka cluster, example:  
\# zookeeper\_addrs = "192.168.0.11:2181,192.168.0.12:2181,192.168.0.13:2181"  
zookeeper\_addrs = ""  
  
  
\# KV mode  
deploy\_without\_tidb = False  
  
  
\# TiDB 慢查询日志记录到单独文件(\{ \{ deploy\_dir \}\}/log/tidb\_slow\_query.log)，默认为 False，记录到 tidb 日志  
\# enable\_slow\_query\_log  
EOF  
\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#分配机器资源，编辑 inventory.ini 文件  
  
  
  
  
\#执行以下命令如果所有 server 返回 tidb 表示 ssh 互信配置成功。  
ansible -i inventory.ini all -m shell -a 'whoami'  
\#执行以下命令如果所有 server 返回 root 表示 tidb 用户 sudo 免密码配置成功。  
ansible -i inventory.ini all -m shell -a 'whoami' -b  
\#下载 TiDB binary  
ansible-playbook local\_prepare.yml  
  
  
\#初始化系统环境，修改内核参数  
ansible-playbook bootstrap.yml  
\#部署 TiDB 集群软件  
ansible-playbook deploy.yml  
\#启动 TiDB 集群  
ansible-playbook start.yml