OceanBase实验2：手动部署OceanBase集群

服务器配置

12核48G，操作系统为centos 7.9系统。

本次测试使用单台服务器，创建单节点三副本的1-1-1集群。

Observer

zone1 172.27.17.82 2881 2882

zone2 172.27.17.82 3881 3882

zone3 172.27.17.82 4881 4882

OBProxy

172.27.17.82 2883 2884

1、服务器环境初始化

参考：DBA入门入门教程2.4节https://www.oceanbase.com/docs/community-tutorials-cn-10000000000012296

包括修改配置文件、关闭防火墙、关闭SELinux、配置时间同步服务、配置安装用户、磁盘文件系统划分等。

2、安装OceanBase包

1）使用root用户安装软件包：rpm -ivh oceanbase-ce-libs-3.1.1-4.el7.x86_64.rpm、rpm -ivh oceanbase-ce-3.1.1-4.el7.x86_64.rpm、rpm -ivh obproxy-3.2.0-1.el7.x86_64.rpm。

 

安装Obclient：rpm -ivh libobclient-2.0.0-2.el7.x86_64.rpm、rpm -ivh obclient-2.0.0-2.el7.x86_64.rpm。

 

2）查看目录结构

 

3）配置lib路径

echo 'export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:~/oceanbase/lib' >> ~/.bash_profile

. ~/.bash_profile

 

4）初始化数据目录

mkdir -p /data/{observer01,observer02,observer03,obproxy}

mkdir -p /data/observer{01,02,03}/store/{sort_dir,sstable,clog,ilog,slog}

 

/data归属于admin:admin。

3、启动OBServer进程

1）启动Observer

cd /data/observer01/ && /home/admin/oceanbase/bin/observer -r "172.27.17.82:2882:2881;172.27.17.82:3882:3881;172.27.17.82:4882:4881" -o __min_full_resource_pool_memory=268435456,memory_limit=8G,system_memory=4G,stack_size=512K,cpu_count=16,cache_wash_threshold=1G,workers_per_cpu_quota=10,schema_history_expire_time=1d,net_thread_count=4,sys_bkgd_migration_retry_num=3,minor_freeze_times=10,enable_separate_sys_clog=0,enable_merge_by_turn=False,datafile_size=8G,enable_syslog_recycle=True,max_syslog_file_count=10 -z zone1 -p 2881 -P 2882 -c 1 -d /data/observer01/store -i eth0 -l INFO

cd /data/observer02/ && /home/admin/oceanbase/bin/observer -r "172.27.17.82:2882:2881;172.27.17.82:3882:3881;172.27.17.82:4882:4881" -o __min_full_resource_pool_memory=268435456,memory_limit=8G,system_memory=4G,stack_size=512K,cpu_count=16,cache_wash_threshold=1G,workers_per_cpu_quota=10,schema_history_expire_time=1d,net_thread_count=4,sys_bkgd_migration_retry_num=3,minor_freeze_times=10,enable_separate_sys_clog=0,enable_merge_by_turn=False,datafile_size=8G,enable_syslog_recycle=True,max_syslog_file_count=10 -z zone2 -p 3881 -P 3882 -c 1 -d /data/observer02/store -i eth0 -l INFO

cd /data/observer03/ && /home/admin/oceanbase/bin/observer -r "172.27.17.82:2882:2881;172.27.17.82:3882:3881;172.27.17.82:4882:4881" -o __min_full_resource_pool_memory=268435456,memory_limit=8G,system_memory=4G,stack_size=512K,cpu_count=16,cache_wash_threshold=1G,workers_per_cpu_quota=10,schema_history_expire_time=1d,net_thread_count=4,sys_bkgd_migration_retry_num=3,minor_freeze_times=10,enable_separate_sys_clog=0,enable_merge_by_turn=False,datafile_size=8G,enable_syslog_recycle=True,max_syslog_file_count=10 -z zone3 -p 4881 -P 4882 -c 1 -d /data/observer03/store -i eth0 -l INFO

 

2）初始化集群

obclient -h172.27.17.82 -uroot -P2881 -p -c -A  # 默认空密码

set session ob_query_timeout=1000000000;

alter system bootstrap ZONE 'zone1' SERVER '172.27.17.82:2882' , ZONE 'zone2' SERVER '172.27.17.82:3882' , ZONE 'zone3' SERVER '172.27.17.82:4882';

 

3）查看集群状态

SELECT * FROM __all_server;

SELECT svr_ip,svr_port, cpu_total, mem_total/1024/1024/1024,disk_total/1024/1024/1024, zone FROM __all_virtual_server_stat;

 

4）修改密码

alter user root identified by 'rootPWD123';

 

4、启动OBProxy

1）创建 OBProxy内部账户

obclient -h172.27.17.82 -uroot@sys -P2881 -prootPWD123 -c -A oceanbase。

create user proxyro identified by 'proxyroPWD123';

grant select on oceanbase.* to proxyro;

 

2）启动OBProxy

cd /data/obproxy

/home/admin/obproxy-3.2.0/bin/obproxy -p2883 -c obcluster -r "172.27.17.82:2881;172.27.17.82:3881;172.27.17.82:4881" -o "enable_cluster_checkout=false,enable_strict_kernel_release=false,enable_metadb_used=false"

 

 

3）修改OBProxy连接OceanBase集群用户proxyro的密码

obclient -h 172.27.17.82 -u root@proxysys -P 2883 -p #密码为空

alter proxyconfig set observer_sys_password = 'proxyroPWD123' ; #密码与前述proxyro用户一致

 

obclient -h172.27.17.82 -uroot@sys#obcluster -P2883 -prootPWD123 -c -A oceanbase #登录测试

 

5、创建业务租户

1）登录

obclient -h172.27.17.82 -uroot@sys#obcluster -P2883 -prootPWD123 -c -A oceanbase

2）查询系统资源总计资源

SELECT svr_ip,svr_port, cpu_total, mem_total/1024/1024/1024, disk_total/1024/1024/1024, zone FROM __all_virtual_server_stat;

 

3）查询租户已分配资源：

SELECT sum(c.max_cpu), sum(c.max_memory)/1024/1024/1024 FROM __all_resource_pool as a, __all_unit_config AS c WHERE a.unit_config_id=c.unit_config_id;

 

4）创建资源规格

create resource unit  unit_wang max_cpu=2, min_cpu=2, max_memory='1g', min_memory='1g', max_iops=10000, min_iops=1000, max_session_num=1000000, max_disk_size='50g';

 

select * from __all_unit_config;

 

5）创建资源池

create resource pool my_pool unit = 'unit_wang', unit_num = 1;

select * from oceanbase.gv$unit;

 

6）创建租户

create tenant tenant_henry resource_pool_list=('my_pool'), primary_zone='RANDOM',comment 'mysql tenant/instance', charset='utf8' set ob_tcp_invited_nodes='%', ob_compatibility_mode='mysql';

select * from oceanbase.gv$tenant;

 

6、创建业务数据库和表

1）登录刚刚创建的业务租户tenant_henry

obclient -h 172.27.17.82 -uroot@tenant_henry#obcluster -P2883 -p -c -A。

 

2）创建数据库

create database mydb;

 

创建用户：

create user henry identified by "mydb";

grant all privileges on mydb.* to henry;

 

3）使用业务用户登录租户tenant_henry并创建业务表：

业务用户登录

obclient -h 172.27.17.82 -uhenry@tenant_henry#obcluster -P2883 -p -c -A。

 

创建业务表

CREATE TABLE `accountmoremenuinfo` (

  `id` INT DEFAULT NULL,

  `labelid` INT DEFAULT NULL,

  `customname` VARCHAR(1000) DEFAULT NULL,

  `icon` VARCHAR(1000) DEFAULT NULL,

  `isshow` CHAR(1) DEFAULT NULL,

  `url` VARCHAR(1000) DEFAULT NULL,

  `linkmode` CHAR(1) DEFAULT NULL,

  `type` VARCHAR(10) DEFAULT NULL,

  `shoposition` CHAR(1) DEFAULT NULL,

  `sortnum` INT DEFAULT NULL,

  `sType` VARCHAR(255) DEFAULT NULL,

  `iconType` VARCHAR(100) DEFAULT NULL,

  `iconFrom` VARCHAR(100) DEFAULT NULL,

  `iconImgSrc` VARCHAR(300) DEFAULT NULL

);

CREATE TABLE `actionexecutelog` (

  `id` INT NOT NULL AUTO_INCREMENT,

  `ACTIONID` TEXT,

  `ACTIONTYPE` INT DEFAULT NULL,

  `DATASHOWCOUNT` INT DEFAULT NULL,

  `CREATEDATE` VARCHAR(80) DEFAULT NULL,

  `CREATETIME` VARCHAR(64) DEFAULT NULL,

  `ModifyDate` VARCHAR(80) DEFAULT NULL,

  `ModifyTime` VARCHAR(64) DEFAULT NULL,

  `clientip` VARCHAR(256) DEFAULT NULL,

  `execresult` INT DEFAULT NULL,

  `actiondbid` VARCHAR(1000) DEFAULT NULL,

  PRIMARY KEY (`id`),

  KEY `idx_0826_actiondbid` (`actiondbid`),

  KEY `idx_0826_createDate` (`CREATEDATE`)

) ;

CREATE TABLE `actionsetting` (

  `id` INT NOT NULL AUTO_INCREMENT,

  `ACTIONNAME` VARCHAR(1000) DEFAULT NULL,

  `ACTIONCLASS` TEXT,

  `TYPENAME` VARCHAR(160) DEFAULT NULL,

  `ACTIONSHOWNAME` VARCHAR(1000) DEFAULT NULL,

  `CREATEDATE` VARCHAR(80) DEFAULT NULL,

  `CREATETIME` VARCHAR(64) DEFAULT NULL,

  `MODIFYDATE` VARCHAR(80) DEFAULT NULL,

  `MODIFYTIME` VARCHAR(64) DEFAULT NULL,

  `javacode` TEXT,

  `uuid` VARCHAR(50) DEFAULT '0',

  `subcompanyid` INT DEFAULT NULL,

  PRIMARY KEY (`id`)

) AUTO_INCREMENT=152 ;

查询业务表

 

7、遇到的问题

在配置OBProxy登录时，一定要注意proxyro的密码与配置的连接密码一致，即第5节提到的这两个命令：

create user proxyro identified by 'proxyroPWD123';

alter proxyconfig set observer_sys_password = 'proxyroPWD123' ;

因为proxyconfig里observer_sys_password配置的密码写错，导到初次使用OBProxy登录时失败，我排查了好半天。