OceanBase快速安装实践

本文意图帮助快速安装OceanBase这一金融级分布式数据库产品。
但部署设计仅供产品体验目的，非生产级别安装方案。

安装OceanBase主要有两种方式， 一为OCP，另一为脚本方式（即deploy.py）。
因不具备桌面环境，本人选择deploy.py方式安装。

0. 规划:

四台机器：
192.168.1.10 (记为 IP10) 作为安装控制端
192.168.1.50 (记为 IP50) OB node
192.168.1.51 (记为 IP51) OB node
192.168.1.52 (记为 IP52) OB node
安装后，每台机器均创建admin账号，OB全部进程 (observer & obproxy) 及数据（含日志）均存在于admin账号下(/home/admin)。

OceanBase版本： oceanbase-1.4.60-1571952.el7.x86_64.rpm

1. 确认操作系统版本：CentOS 7.x

[root@xxx ~]# cat /etc/redhat-release 
CentOS Linux release 7.2.1511 (Core) 

2. 可能需要的依赖，所有机器都安装：

yum install rsync libaio*

3. 四台机器分别创建admin账号

useradd admin
passwd admin<<EOF
ob123
ob123
EOF

4. 打通SSH登录（即admin@IP10到其它机器admin@IP5x）：

登录admin@IP10：

ssh-keygen -t rsa
ssh-copy-id [email protected]
ssh-copy-id [email protected]
ssh-copy-id [email protected]

note: 
a. 遇到权限问题，执行: chmod -R 600 ~/.ssh，完成后手工验证无密登录成功即可。
b. 如果ssh不在22端口，需要配置~/.ssh/config (方法略)

5. 控制端安装MySQL：

登录admin@IP10：

cd ~
wget https://dev.mysql.com/get/Downloads/MySQL-5.7/mysql-5.7.25-linux-glibc2.12-x86_64.tar.gz
tar xzvf mysql-5.7.25-linux-glibc2.12-x86_64.tar.gz
ln -s ~/mysql-5.7.25-linux-glibc2.12-x86_64 ~/mysql

echo 'export PATH=$HOME/mysql/bin:$PATH' >> ~/.bash_profile

cat > ~/.my.cnf <<EOF
[mysql]
port      = 8041
socket    = /home/$USER/mysql_data/mysql.sock

[mysqld]
basedir   = /home/$USER/mysql
datadir   = /home/$USER/mysql_data
log-error = /home/$USER/mysql_data/mysql.err
socket    = /home/$USER/mysql_data/mysql.sock
EOF

mysqld --initialize

6. 控制端准备OB安装程序：

登录admin@IP10：

mkdir -p ~/ob-deploy/bin
wget https://gw.alipayobjects.com/os/downloads/ossupload/ocp-release.zip
unzip ocp-release.zip
cd ~/ocp-release
tar xzvf ocp-setup.tar.gz
cd ocp_yh

rpm2cpio oceanbase-1.4.60-1571952.el7.x86_64.rpm |cpio -ivd
cp ./home/admin/oceanbase/bin/observer ~/ob-deploy/bin
cp ./home/admin/oceanbase/bin/ob_admin ~/ob-deploy/bin

rpm2cpio obproxy-1.3.3-1506155.el7.x86_64.rpm |cpio -ivd
cp ./opt/taobao/install/obproxy/bin/obproxy ~/ob-deploy/bin

7. 控制端执行安装：

登录admin@IP10：

cd ~/ob-deploy
python deploy.py prepare_local_dir
python deploy.py gen_config

生成config.py，并改如下：

clog_dir = '/home/admin/obdata/log1'
data_dir = '/home/admin/obdata/1'
log_dir = ''          
log_level='INFO' 
port_gen = itertools.count(8040) 

obs_cfg=dict(datafile_size='10G',
             enable_merge_by_turn='False',
             memory_limit='16G',
             )

ip_list = dict(ip1='192.168.1.50', ip2='192.168.1.51', ip3='192.168.1.52')
ob1 = OBI(sub('rs@$ip1@z1 proxy@$ip1@z1 rs@$ip2@z2 proxy@$ip2@z2 rs@$ip3@z3 proxy$ip3@z3', ip_list))

obx = OBI(local_ip)

oby = OBI(sub('$ip1@z1 proxy@$ip1@z1', dict(ip1=local_ip)))

继续执行：

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python deploy.py ob1.reboot

看到如下代表成功了：

2019-03-20 14:38:35.220318 13198 hap.py:255 call: top.ob1 obs0.check_bootstrap
['ob1.reboot',
 [('check_local_bin', 'OK'),
  ('check_ssh', 'OK'),
  ('force_stop',
   [('obs0.stop', 'succ'),
    ('obs1.stop', 'succ'),
    ('obs2.stop', 'succ'),
    ('proxy0.stop', 'succ'),
    ('proxy1.stop', 'succ'),
    ('proxy2.stop', 'succ')]),
  ('sleep', None),
  ('cleanup',
   [('obs0.rmdir', 0),
    ('obs1.rmdir', 0),
    ('obs2.rmdir', 0),
    ('proxy0.rmdir', 0),
    ('proxy1.rmdir', 0),
    ('proxy2.rmdir', 0)]),
  ('check_dir',
   [('obs0.check_dir', 'OK'),
    ('obs1.check_dir', 'OK'),
    ('obs2.check_dir', 'OK'),
    ('proxy0.check_dir', 'OK'),
    ('proxy1.check_dir', 'OK'),
    ('proxy2.check_dir', 'OK')]),
  ('mk_local_dir', 0),
  ('mkdir',
   [('obs0.mkdir', 0),
    ('obs1.mkdir', 0),
    ('obs2.mkdir', 0),
    ('proxy0.mkdir', 0),
    ('proxy1.mkdir', 0),
    ('proxy2.mkdir', 0)]),
  ('rsync',
   [('obs0.rsync', 0),
    ('obs1.rsync', 0),
    ('obs2.rsync', 0),
    ('proxy0.rsync', 0),
    ('proxy1.rsync', 0),
    ('proxy2.rsync', 0)]),
  ('prepare_proxy_cfg', 0),
  ('mkdir_for_gcda',
   [('obs0.mkdir_for_gcda', 0),
    ('obs1.mkdir_for_gcda', 0),
    ('obs2.mkdir_for_gcda', 0),
    ('proxy0.mkdir_for_gcda', 0),
    ('proxy1.mkdir_for_gcda', 0),
    ('proxy2.mkdir_for_gcda', 0)]),
  ('gen_iobench',
   [('obs0.gen_iobench', 0),
    ('obs1.gen_iobench', 0),
    ('obs2.gen_iobench', 0)]),
  ('start_servers',
   [('obs0.start', 0), ('obs1.start', 0), ('obs2.start', 0)]),
  ('bootstrap', 'succ'),
  ('add_server', []),
  ('wait_service', 'succ'),
  ('exec_init_sql', ''),
  ('exec_help_init_sql', ''),
  ('start_proxy',
   [('proxy0.start', 0), ('proxy1.start', 0), ('proxy2.start', 0)]),
  ('check_bootstrap', 0)]]

8. 看一下各机器结果：

admin@IP50上的进程：

  PID TTY      STAT   TIME COMMAND
 9896 pts/0    S      0:00 -bash
 9930 pts/0    R+     0:00  \_ ps -u admin f
12434 ?        Ssl  198:31 /home/admin/ob1.proxy2/bin/obproxy -p 8051 -n ob1.admin -o syslog_level=INFO,enable_cluster_checkout=false -r 192.168.1.50:8049;192.168.1.51:8041;192.168.1.52:8045
11764 ?        Ssl  6036:32 /home/admin/ob1.obs2/bin/observer -P 8048 -p 8049 -z z3 -n ob1.admin -c 1 -d /home/admin/ob1.obs2/store -l INFO -r 192.168.1.50:8048:8049;192.168.1.51:8040:8041;192.168.1.52:8044:8045 -o memory_limit=64G,enable_merge_by_turn=False,datafile_size=10G

admin@IP51上的进程：

  PID TTY      STAT   TIME COMMAND
19505 pts/0    S      0:00 -bash
19754 pts/0    R+     0:00  \_ ps -u admin f
14282 ?        Ssl  389:30 /home/admin/ob1.proxy0/bin/obproxy -p 8043 -n ob1.admin -o syslog_level=INFO,enable_cluster_checkout=false -r 192.168.1.50:8049;192.168.1.51:8041;192.168.1.52:8045
13481 ?        Ssl  7922:04 /home/admin/ob1.obs0/bin/observer -P 8040 -p 8041 -z z1 -n ob1.admin -c 1 -d /home/admin/ob1.obs0/store -l INFO -r 192.168.1.50:8048:8049;192.168.1.51:8040:8041;192.168.1.52:8044:8045 -o memory_limit=64G,enable_merge_by_turn=False,datafile_size=10G

admin@IP52上的进程：

  PID TTY      STAT   TIME COMMAND
 3729 pts/1    S      0:00 -bash
 3753 pts/1    R+     0:00  \_ ps -u admin f
 6400 ?        Ssl  424:49 /home/admin/ob1.proxy1/bin/obproxy -p 8047 -n ob1.admin -o syslog_level=INFO,enable_cluster_checkout=false -r 192.168.1.50:8049;192.168.1.51:8041;192.168.1.52:8045
 5737 ?        Ssl  8784:56 /home/admin/ob1.obs1/bin/observer -P 8044 -p 8045 -z z2 -n ob1.admin -c 1 -d /home/admin/ob1.obs1/store -l INFO -r 192.168.1.50:8048:8049;192.168.1.51:8040:8041;192.168.1.52:8044:8045 -o memory_limit=64G,enable_merge_by_turn=False,datafile_size=10G

9. 开始使用吧

登录admin@IP10: 
 

mysql --prompt "OceanBase (\u@\d)> " -h 192.168.1.50 -P 8041 -uroot -Doceanbase

-- 建RESOURCE UNIT:
CREATE RESOURCE UNIT res_unit1 max_cpu 2, max_memory '2G', max_iops 128, max_disk_size '1G', max_session_num 64, MIN_CPU=1, MIN_MEMORY='1G', MIN_IOPS=128;

-- 建RESOURCE POOL: 
CREATE RESOURCE POOL pool1 unit='res_unit1', unit_num=1, zone_list=('z1', 'z2', 'z3');

-- 建租户：
CREATE TENANT tenant1 charset='utf8mb4', replica_num=1, zone_list=('z1', 'z2', 'z3'), primary_zone='z1', resource_pool_list=('pool1');

更多尝试，参考官方文档吧
https://oceanbase.alipay.com/docs