TiDB 分布式数据库(二)
#
# TiDB ：A Distributed SQL Database
# github :https://github.com/pingcap/tidb
# doc : https://github.com/pingcap/docs-cn
#
#架构
| Name |
Host IP | Services |
| node1 | 192.168.174.134 |
PD, TiDB |
| node2 | 192.168.174.136 | TiKV1 |
| node3 | 192.168.174.137 | TiKV2 |
| node4 | 192.168.174.138 | TiKV3 |
#软件下载（每台都需操作）
|
1
2
3
|
[root@node1 ~]
# wget http://download.pingcap.org/tidb-latest-linux-amd64.tar.gz
[root@node1 ~]
# tar -xf tidb-latest-linux-amd64.tar.gz -C /usr/local/
[root@node1 ~]
# mkdir /data/tidb/{data,log} -p
|
#开启服务（注：集群的启动顺序不能错）
#在node1开启PD
|
1
2
3
4
|
[root@node1 ~]
# /usr/local/tidb-latest-linux-amd64/bin/pd-server --name=pd1 \
--data-
dir
=
/data/tidb/data
--client-urls=
"http://192.168.174.134:2379"
\
--peer-urls=
"http://192.168.174.134:2380"
--initial-cluster=
"pd1=http://192.168.174.134:2380"
\
--log-
file
=
/data/tidb/log/pd
.log &
|
参数解释：https://github.com/pingcap/docs-cn/blob/master/op-guide/configuration.md#tidb
#在node2 node3 node4 上开启 TiKV
|
1
2
3
|
[root@node2 ~]
# /usr/local/tidb-latest-linux-amd64/bin/tikv-server --pd="192.168.174.134:2379" --addr="192.168.174.136:20160" --data-dir=/data/tidb/data --log-file=/data/tidb/log/tikv.log &
[root@node3 ~]
# /usr/local/tidb-latest-linux-amd64/bin/tikv-server --pd="192.168.174.134:2379" --addr="192.168.174.137:20160" --data-dir=/data/tidb/data --log-file=/data/tidb/log/tikv.log &
[root@node4 ~]
# /usr/local/tidb-latest-linux-amd64/bin/tikv-server --pd="192.168.174.134:2379" --addr="192.168.174.138:20160" --data-dir=/data/tidb/data --log-file=/data/tidb/log/tikv.log &
|
参数解释：https://github.com/pingcap/docs-cn/blob/master/op-guide/configuration.md#tidb
#在node1 上开启TiDB
|
1
|
[root@node1 ~]
# /usr/local/tidb-latest-linux-amd64/bin/tidb-server --store=tikv --path="192.168.174.134:2379" --log-file=/data/tidb/log/tidb.log &
|
#登陆数据库
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
|
[root@node1 ~]
# yum install -y mariadb #安装mariadb数据库客户端
[root@node1 ~]
# mysql -uroot -h 192.168.174.134 -P 4000
Welcome to the MariaDB monitor. Commands end with ; or \g.
Your MySQL connection
id
is 2
Server version: 5.7.1-TiDB-1.0 MySQL Community Server (GPL)
Copyright (c) 2000, 2015, Oracle, MariaDB Corporation Ab and others.
Type
'help;'
or
'\h'
for
help. Type
'\c'
to
clear
the current input statement.
MySQL [(none)]> show databases;
+--------------------+
| Database |
+--------------------+
| INFORMATION_SCHEMA |
| PERFORMANCE_SCHEMA |
| mysql |
|
test
|
+--------------------+
4 rows
in
set
(0.00 sec)
MySQL [(none)]>
select
host,user from mysql.user ;
+------+------+
| host | user |
+------+------+
| % | root |
+------+------+
1 row
in
set
(0.00 sec)
MySQL [(none)]>
exit
Bye
|
#集群状态
TiDB 对外暴露的 HTTP 接口是 http://host:port/status，默认的端口号是 10080 （可以通过 --status 参数设置），
可以通过访问这个接口获取当前 TiDB Server 的状态，以及判断是否存活。返回结果是 Json 格式：
|
1
2
|
[root@node1 ~]
# curl 192.168.174.134:10080/status
{
"connections"
:0,
"version"
:
"5.7.1-TiDB-1.0"
,
"git_hash"
:
"d6ec37bb4219e95babce41bd0400d04d84b1fb88"
}
|
PD Server
PD API 地址： http://${host}:${port}/pd/api/v1/${api_name}
其中 port 默认为 2379，各类 api_name 详细信息参见
https://cdn.rawgit.com/pingcap/docs/master/op-guide/pd-api-v1.html
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
|
[root@node1 ~]
# curl 192.168.174.134:2379/pd/api/v1/stores
{
"count"
: 3,
"stores"
: [
{
"store"
: {
"id"
: 1,
"address"
:
"192.168.174.138:20160"
,
"state"
: 0,
"state_name"
:
"Up"
},
"status"
: {
"store_id"
: 1,
"capacity"
:
"19 GB"
,
"available"
:
"17 GB"
,
"leader_count"
: 1,
"region_count"
: 1,
"sending_snap_count"
: 0,
"receiving_snap_count"
: 0,
"applying_snap_count"
: 0,
"is_busy"
:
false
,
"start_ts"
:
"2017-05-13T03:16:51+08:00"
,
"last_heartbeat_ts"
:
"2017-05-13T03:23:58.709890548+08:00"
,
"uptime"
:
"7m7.709890548s"
}
},
{
"store"
: {
"id"
: 4,
"address"
:
"192.168.174.137:20160"
,
"state"
: 0,
"state_name"
:
"Up"
},
"status"
: {
"store_id"
: 4,
"capacity"
:
"19 GB"
,
"available"
:
"16 GB"
,
"leader_count"
: 0,
"region_count"
: 1,
"sending_snap_count"
: 0,
"receiving_snap_count"
: 0,
"applying_snap_count"
: 0,
"is_busy"
:
false
,
"start_ts"
:
"2017-05-12T18:17:02+08:00"
,
"last_heartbeat_ts"
:
"2017-05-13T03:24:00.555315502+08:00"
,
"uptime"
:
"9h6m58.555315502s"
}
},
{
"store"
: {
"id"
: 5,
"address"
:
"192.168.174.136:20160"
,
"state"
: 0,
"state_name"
:
"Up"
},
"status"
: {
"store_id"
: 5,
"capacity"
:
"16 GB"
,
"available"
:
"13 GB"
,
"leader_count"
: 0,
"region_count"
: 1,
"sending_snap_count"
: 0,
"receiving_snap_count"
: 0,
"applying_snap_count"
: 0,
"is_busy"
:
false
,
"start_ts"
:
"2017-05-12T18:17:02+08:00"
,
"last_heartbeat_ts"
:
"2017-05-13T03:23:56.955220422+08:00"
,
"uptime"
:
"9h6m54.955220422s"
}
}
]
}
[root@node1 ~]
#
|
本文转自 chaunceyjiang 51CTO博客，原文链接：http://blog.51cto.com/cqwujiang/1925169，如需转载请自行联系原作者