TDengine集群安装
一、安装包下载：
1、下载TDengine-server-2.0.20.12-Linux-x64.tar.gz
下载地址：https://www.taosdata.com/cn/all-downloads/
二、集群安装
1、安装环境 centos7.7，我们准备了两台服务器安装，一台mnode节点，一台nnode节点
2、hostname配置（h1.wxx.com为mnode），两台服务器都要配置，这里的Ip是云服务器的内网ip
192.168.1.20 h1.wxx.com
192.168.1.21 h2.wxx.com
3、创建数据存储路径data和log目录（两台服务器都要创建）
cd /data
mkdir tdengine
cd tdengine
mkdir data
mkdir log
3、将包上传至服务器/data目录
cd /data
tar xvf TDengine-server-2.0.20.12-Linux-x64.tar.gz
cd TDengine-server-2.0.20.12
./install.sh
重点说明：
mnode节点安装，一路回车，不输入任务内容
nnode节点安装时，提示是否加入其余他节点，输入
h1.wxx.com:6030
4、taos.cfg配置文件修改，两台服务器配置不同的就是fqdn参数
mnode节点
firstEp h1.wxx.com:6030
fqdn h1.wxx.com
serverPort 6030
logDir /data/tdengine/log
dataDir /data/tdengine/data
nnode节点
firstEp h1.wxx.com:6030
fqdn h2.wxx.com
serverPort 6030
logDir /data/tdengine/log
dataDir /data/tdengine/data
5、创建启动脚本，时间长了，命令容易忘
cd /data/tdengine
vi mystart.sh
插入
systemctl start taosd
6、启动
sh mystart.sh
systemctl status taosd
显示如下，表示成功
[root@server06 tdengine]# systemctl status taosd
● taosd.service - TDengine server service
Loaded: loaded (/etc/systemd/system/taosd.service; enabled; vendor preset: disabled)
Active: active (running) since Tue 2021-08-10 14:57:22 CST; 9s ago
Process: 330 ExecStartPre=/usr/local/taos/bin/startPre.sh (code=exited, status=0/SUCCESS)
Main PID: 339 (taosd)
CGroup: /system.slice/taosd.service
└─339 /usr/bin/taosd
Aug 10 14:57:22 server06 systemd[1]: Starting TDengine server service...
Aug 10 14:57:22 server06 systemd[1]: Started TDengine server service.
Aug 10 14:57:22 server06 TDengine:[339]: Starting TDengine service...
Aug 10 14:57:22 server06 TDengine:[339]: Started TDengine service successfully.
7、针对云服务器，开放端口，同时要开放TCP的6030端口，UDP的6030端口，客户端才可以访问
三、验证数据库可用
1、查看集群相关节点，用taos命令进入命令窗口
taos> show dnodes;
id | end_point | vnodes | cores | status | role | create_time | offline reason |
======================================================================================================================================
1 | h1.wxx.com:6030 | 0 | 8 | ready | any | 2021-08-10 11:33:02.299 | |
2 | h2.wxx.com:6030 | 2 | 8 | ready | any | 2021-08-10 11:38:29.550 | |
Query OK, 2 row(s) in set (0.000641s)
taos> show mnodes;
id | end_point | role | create_time |
===================================================================================
1 | h1.wxx.com:6030 | master | 2021-08-10 11:33:02.299 |
Query OK, 1 row(s) in set (0.000529s)
2、建库，建表
create database db;
use db;
create table t (ts timestamp, speed int);
insert into t values ('2019-07-15 00:00:00', 10);
insert into t values ('2019-07-15 01:00:00', 20);
select * from t;
ts | speed |
========================================
2019-07-15 00:00:00.000 | 10 |
2019-07-15 01:00:00.000 | 20 |
Query OK, 2 row(s) in set (0.003128s)
四、客户端的使用
1、客户端下载（注：客户端与服务器端版本必须保持一至）
包名为：TDengine-client-2.0.20.12-Windows-x64.exe
下载地址：https://www.taosdata.com/cn/all-downloads/
2、直接双击安装，默认安装到了C:\TDengine目录，
3、编辑C:\TDengine\taos.cfg配置
关键配置如下：
firstEp h1.wxx.com:6030
4、修改C:\Windows\System32\drivers\etc\hosts，加入(这里是云服务器的外网ip)
120.63.178.133 h1.wxx.com
120.63.254.178 h2.wxx.com
5、使用
C:\TDengine>taos.exe
Welcome to the TDengine shell from Linux, Client Version:2.0.20.12
Copyright (c) 2020 by TAOS Data, Inc. All rights reserved.
taos> show databases;
name | created_time | ntables | vgroups | replica | quorum | days | keep0,keep1,keep(D) | cache(MB) | blocks | minrows | maxrows | wallevel | fsync | comp | cachelast | precision | update | status |
====================================================================================================================================================================================================================================================================================
demo | 2021-08-10 11:41:30.773 | 1 | 1 | 1 | 1 | 10 | 3650,3650,3650 | 16 | 6 | 100 | 4096 | 1 | 3000 | 2 | 0 | ms | 0 | ready |
log | 2021-08-10 11:33:03.301 | 5 | 1 | 1 | 1 | 10 | 30,30,30 | 1 | 3 | 100 | 4096 | 1 | 3000 | 2 | 0 | us | 0 | ready |
Query OK, 2 row(s) in set (0.149000s)
taos> use demo;
Query OK, 0 of 0 row(s) in database (0.016000s)
taos> select * from t;
ts | speed |
========================================
2019-07-15 00:00:00.000 | 10 |
2019-07-15 01:00:00.000 | 20 |
Query OK, 2 row(s) in set (0.132000s)
taos>