Docker安装部署分布式数据库 OceanBase的详细过程

--  查看集群列表
[admin@3ef732cfb95a ~]$ obd cluster list
配置文件：/home/admin/.obd/cluster/obdemo/config.yaml

-- 启动集群 
[admin@3ef732cfb95a ~]$  obd cluster start obdemo
如果遇到以下两个报错
[ERROR] (127.0.0.1) open files number must not be less than 20000 (Current value: 1024)
[ERROR] (127.0.0.1) not enough memory. (Free: 6.7G, Need: 8.0G)
一个是用户最大打开文件数不够，一个是可用内存不足8G，解决后成功启动。

[admin@3ef732cfb95a ~]$ obd cluster list   
+------------------------------------------------------------+
|                        Cluster List                        |
+--------+---------------------------------+-----------------+
| Name   | Configuration Path              | Status (Cached) |
+--------+---------------------------------+-----------------+
| obdemo | /home/admin/.obd/cluster/obdemo | running         |
+--------+---------------------------------+-----------------+

[admin@3ef732cfb95a ~]$ netstat -tulnp | grep 88
tcp        0      0 0.0.0.0:2881            0.0.0.0:*               LISTEN      95/observer         
tcp        0      0 0.0.0.0:2882            0.0.0.0:*               LISTEN      95/observer         
tcp        0      0 0.0.0.0:2883            0.0.0.0:*               LISTEN      714/obproxy         
tcp        0      0 0.0.0.0:2884            0.0.0.0:*               LISTEN      714/obproxy       

[admin@3ef732cfb95a ~]$ obclient -h127.1 -uroot@sys#obce-single -P2883 -prootPWD123 -c -A oceanbase
Welcome to the OceanBase.  Commands end with ; or \g.
Your MySQL connection id is 3
Server version: 5.6.25 OceanBase 3.1.1 (r4-8c615943cbd25a6f7b8bdfd8677a13a21709a05e) (Built Oct 21 2021 10:52:05)

Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

MySQL [oceanbase]> show databases;
+--------------------+
| Database           |
+--------------------+
| oceanbase          |
| information_schema |
| mysql              |
| SYS                |
| LBACSYS            |
| ORAAUDITOR         |
| test               |
+--------------------+
7 rows in set (0.014 sec)

MySQL [oceanbase]> CREATE resource unit S4C1G max_cpu=4, min_cpu=4, max_memory='1G', 
min_memory='1G', max_iops=10000, min_iops=1000, max_session_num=1000000, max_disk_size='1024G';

MySQL [oceanbase]> CREATE resource pool my_pool unit = 'S4C1G', unit_num = 1;

MySQL [oceanbase]> create tenant obmysql resource_pool_list=('my_pool'), primary_zone='RANDOM',comment 'mysql tenant/instance', charset='utf8' set ob_tcp_invited_nodes='%', ob_compatibility_mode='mysql'; 

[admin@3ef732cfb95a ~]$ obclient -h 127.1 -uroot@obmysql#obce-single -P2883 -p -c -A test
Enter password: 
Welcome to the OceanBase.  Commands end with ; or \g.
Your MySQL connection id is 7
Server version: 5.6.25 OceanBase 3.1.1 (r4-8c615943cbd25a6f7b8bdfd8677a13a21709a05e) (Built Oct 21 2021 10:52:05)

Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

MySQL [test]> show databases;
+--------------------+
| Database           |
+--------------------+
| oceanbase          |
| information_schema |
| mysql              |
| test               |
+--------------------+
4 rows in set (0.005 sec)

MySQL [test]> create database mesdb charset utf8mb4;
Query OK, 1 row affected (0.118 sec)

MySQL [test]> use mesdb
Database changed
MySQL [mesdb]> 
MySQL [mesdb]> 
MySQL [mesdb]> 
MySQL [mesdb]> source /tmp/mysql_employees.sql