参考：https://open.oceanbase.com/docs/community/oceanbase-database/V3.1.1/deploy-the-distributed-oceanbase-cluster
环境规划
环境是这样的，只有一台虚拟机，配置16c80G，准备使用docker来模拟出4台CentOS主机，搭建OceanBase 3.1.1社区版的集群。OBServer每台至少需要8G内存，否则不能启动。
具体配置如下所示：
| 主机名 | IP | 端口 | 主机映射端口 | Zone | 作用 |
|---|---|---|---|---|---|
| lhrob1 | 172.72.8.11 | 2881 | 28811 | zone1 | OB Server1 |
| lhrob2 | 172.72.8.12 | 2881 | 28812 | zone2 | OB Server2 |
| lhrob3 | 172.72.8.13 | 2881 | 28813 | zone3 | OB Server3 |
| lhrobproxy | 172.72.8.14 | 2883 | 28814 | 用于OBD、OBProxy、OBClient、mysql客户端、时间服务器等 |
初始化准备
申请环境
1docker network create --subnet=172.72.8.0/16 lhrob-network
2docker network inspect lhrob-network
3
4
5docker rm -f lhrob1 lhrob2 lhrob3 lhrobproxy
6
7docker run -d --name lhrob1 -h lhrob1 \
8 --net=lhrob-network --ip 172.72.8.11 \
9 -p 28811:2881 \
10 -v /sys/fs/cgroup:/sys/fs/cgroup \
11 --privileged=true lhrbest/lhrcentos76:8.5 \
12 /usr/sbin/init
13
14docker run -d --name lhrob2 -h lhrob2 \
15 --net=lhrob-network --ip 172.72.8.12 \
16 -p 28812:2881 \
17 -v /sys/fs/cgroup:/sys/fs/cgroup \
18 --privileged=true lhrbest/lhrcentos76:8.5 \
19 /usr/sbin/init
20
21
22docker run -d --name lhrob3 -h lhrob3 \
23 --net=lhrob-network --ip 172.72.8.13 \
24 -p 28813:2881 \
25 -v /sys/fs/cgroup:/sys/fs/cgroup \
26 --privileged=true lhrbest/lhrcentos76:8.5 \
27 /usr/sbin/init
28
29
30docker run -d --name lhrobproxy -h lhrobproxy \
31 --net=lhrob-network --ip 172.72.8.14 \
32 -p 28814:2883 \
33 -v /sys/fs/cgroup:/sys/fs/cgroup \
34 --privileged=true lhrbest/lhrcentos76:8.5 \
35 /usr/sbin/init
36
37
38
39docker exec -it lhrobproxy bash
配置时钟源
参考：https://open.oceanbase.com/docs/community/oceanbase-database/V3.1.1/optional-configuring-clock-sources
如果您使用集群安装 OceanBase，则需要保证集群内各机器的时间同步。否则集群无法启动，服务在运行时也会出现异常。如果您已配置 NTP 时钟同步，则无需重新配置。
OceanBase 集群中的服务器时间必须保持一致，否则会导致 OceanBase 集群无法启动，运行时也会出现故障。物理机与时钟服务器的误差在 50ms 以下可认为时钟是同步状态，OceanBase 集群最大容忍误差不能超过 100ms。当超过 100ms 时，会出现无主情况。恢复时钟同步后。重启 OceanBase 集群, 可以恢复正常。
部署 OceanBase 集群时，各个 OBServer 的 RPC 允许的时钟偏差最大是100ms。
这里以“172.72.8.14”为时间服务器，其它3台OBServer同步该机器的时间：
1yum install ntp ntpdate -y
2ntpq -4p
3ntpstat
4timedatectl
1、修改“172.72.8.14”为时间服务器/etc/ntp.conf
1# For more information about this file, see the man pages
2# ntp.conf(5), ntp_acc(5), ntp_auth(5), ntp_clock(5), ntp_misc(5), ntp_mon(5).
3
4driftfile /var/lib/ntp/drift
5
6#新增:日志目录
7logfile /var/log/ntpd.log
8
9# Permit time synchronization with our time source, but do not
10# permit the source to query or modify the service on this system.
11restrict default nomodify notrap nopeer noquery
12
13# Permit all access over the loopback interface. This could
14# be tightened as well, but to do so would effect some of
15# the administrative functions.
16restrict 127.0.0.1
17restrict ::1
18
19#新增:这一行的含义是授权172.72.8.0网段上的所有机器可以从这台机器上查询和同步时间.
20restrict 172.72.8.0 mask 255.255.255.0 nomodify notrap
21
22# Hosts on local network are less restricted.
23#restrict 192.168.1.0 mask 255.255.255.0 nomodify notrap
24
25# Use public servers from the pool.ntp.org project.
26# Please consider joining the pool (http://www.pool.ntp.org/join.html).
27#server 0.centos.pool.ntp.org iburst
28#server 1.centos.pool.ntp.org iburst
29#server 2.centos.pool.ntp.org iburst
30#server 3.centos.pool.ntp.org iburst
31
32#新增:时间服务器列表.
33server 0.cn.pool.ntp.org iburst
34server 1.cn.pool.ntp.org iburst
35server 2.cn.pool.ntp.org iburst
36server 3.cn.pool.ntp.org iburst
37
38#新增:当外部时间不可用时，使用本地时间
39server 127.0.0.1 iburst
40fudge 127.0.0.1 stratum 10
41
42
43#broadcast 192.168.1.255 autokey # broadcast server
44#broadcastclient # broadcast client
45#broadcast 224.0.1.1 autokey # multicast server
46#multicastclient 224.0.1.1 # multicast client
47#manycastserver 239.255.254.254 # manycast server
48#manycastclient 239.255.254.254 autokey # manycast client
49
50# Enable public key cryptography.
51#crypto
52
53includefile /etc/ntp/crypto/pw
54
55# Key file containing the keys and key identifiers used when operating
56# with symmetric key cryptography.
57keys /etc/ntp/keys
58
59# Specify the key identifiers which are trusted.
60#trustedkey 4 8 42
61
62# Specify the key identifier to use with the ntpdc utility.
63#requestkey 8
64
65# Specify the key identifier to use with the ntpq utility.
66#controlkey 8
67
68# Enable writing of statistics records.
69#statistics clockstats cryptostats loopstats peerstats
70
71# Disable the monitoring facility to prevent amplification attacks using ntpdc
72# monlist command when default restrict does not include the noquery flag. See
73# CVE-2013-5211 for more details.
74# Note: Monitoring will not be disabled with the limited restriction flag.
75disable monitor
配置开机启动：
1systemctl enable ntpd
2systemctl is-enabled ntpd
3
4ntpdate -u 1.cn.pool.ntp.org
5systemctl restart ntpd
6
7
8[root@lhrobproxy /]# ntpstat
9synchronised to NTP server (84.16.73.33) at stratum 2
10 time correct to within 98 ms
11 polling server every 64 s
其它客户端，修改“/etc/ntp.conf”，注释server开头的行，并添加如下行：
1server 172.72.8.14
2
3restrict 172.72.8.14 nomodify notrap noquery
4
5server 127.0.0.1
6fudge 127.0.0.1 stratum 10
配置开机启动：
1systemctl enable ntpd
2systemctl restart ntpd
客户端配置自动同步：
1crontab -e
2* * * * * /usr/sbin/ntpdate -u 172.72.8.14 & > /dev/null
配置内核参数
4个节点都运行：
1cat >> /etc/security/limits.conf <<"EOF"
2root soft nofile 655350
3root hard nofile 655350
4* soft nofile 655350
5* hard nofile 655350
6* soft stack 20480
7* hard stack 20480
8* soft nproc 655360
9* hard nproc 655360
10* soft core unlimited
11* hard core unlimited
12EOF
13
14
15echo "fs.aio-max-nr=1048576" >> /etc/sysctl.conf
16
17sysctl -p
如果只是测试，您可以只设置 fs.aio-max-nr=1048576
。
创建用户
1useradd -U admin -d /home/admin -s /bin/bash
2echo "admin:lhr" | chpasswd
3
4chown -R admin:admin /home/admin
5
6
7echo "admin ALL=(ALL) NOPASSWD: ALL" >> /etc/sudoers
设置无密码SSH登陆
可以使用rac上的sshUserSetup.sh快速配置，只在lhrobproxy上运行：
1sh sshUserSetup.sh -user admin -hosts "lhrob1 lhrob2 lhrob3 lhrobproxy" -advanced exverify -confirm
安装集群
在lhrobproxy操作：
安装OBD
1yum install -y yum-utils
2yum-config-manager --add-repo https://mirrors.aliyun.com/oceanbase/OceanBase.repo
3yum install -y ob-deploy
设置yaml的配置文件
OBD根据这个yaml文件即可自动创建集群
1cat > /tmp/obd_observer_obproxy.yaml <<"EOF"
2## Only need to configure when remote login is required
3user:
4 username: admin #用户名，前提三个节点保持一致
5 password: lhr #密码 ，前提三个节点保持一致
6 key_file: #密钥，可省略
7
8#################### 下面是 observer搭建参数 ##############################
9oceanbase-ce:
10 servers:
11 - name: z1 # zone名
12 # Please don't use hostname, only IP can be supported
13 ip: 172.72.8.11 # OB1 地址
14 - name: z2
15 ip: 172.72.8.12 # OB2 地址
16 - name: z3
17 ip: 172.72.8.13 # OB3 地址
18 global:
19 mysql_port: 2881 # 数据库端口
20 rpc_port: 2882 # 远程访问的协议端口号
21 home_path: /home/admin/oceanbase # 软件目录
22 #data_dir: /data # 数据目录
23 #redo_dir: /redo # redo目录
24 devname: eth0 # 设置要部署节点的网卡
25 memory_limit: 8G
26 system_memory: 2G # 系统剩余保留内存2G
27 lower_case_table_names: 1 # 数据库不区分大小写
28 foreign_key_checks: 0 # DML 语句不检查外建约束，DDL 操作不受影响
29 sys_bkgd_migration_retry_num: 5 # 副本迁移失败时最多重试次数。
30 stack_size: 512K # 设置程序函数调用栈的大小。 磁盘要512k 对齐，如果不是可能会启动失败
31 cpu_count: 16 # cpu 16核
32 cache_wash_threshold: 1G # 设置触发缓存清理的容量阈值。如果内存空间小于指定值时，内存空间将被清理。
33 __min_full_resource_pool_memory: 1073741824 # 默认普通租户的内存最小规格必须大于等于 5 GB，这里设置成1G，就说明我可以最低设置租户内存为1G
34 workers_per_cpu_quota: 10 # 用于设置分配给每个 CPU 配额的工作线程数量。
35 schema_history_expire_time: 1d # 元数据历史数据过期时间。
36 net_thread_count: 4 # 设置网络 I/O 线程数，The value of net_thread_count had better be same as cpu's core number.
37 major_freeze_duty_time: Disable
38 minor_freeze_times: 10 # 多少次小合并触发一次全局合并。
39 enable_separate_sys_clog: True # 是否把系统事务日志与用户事务日志分开存储。
40 enable_merge_by_turn: FALSE
41 datafile_size: 5G
42 # datafile_disk_percentage: 0.1 # 数据库系统初始化用于存储数据，例如这里设置了40，表示百分之四十，如果我单节点是1TB的，约400多G空间将会被立即占用
43 syslog_level: INFO # 日志警报级别
44 enable_syslog_recycle: True # 开启回收系统日志的功能
45 max_syslog_file_count: 4 # 日志文件数量
46 log_dir_size_threshold: 1G
47 cluster_id: 1 # 集群ID
48 # observer cluster name, consistent with obproxy's cluster_name
49 appname: lhrob311cluster # 集群名，要与下面obproxy的对应一致
50 root_password: lhr
51 proxyro_password: lhr
52 ###下面设置节点信息
53 z1:
54 zone: zone1 # 设置节点所在的 Zone 的名字
55 z2:
56 zone: zone2
57 z3:
58 zone: zone3
59########################## 以下是obrpoxy的 搭建参数 ######################3
60obproxy:
61 servers:
62 - 127.0.0.1
63 global:
64 listen_port: 2883
65 prometheus_listen_port: 2884
66 home_path: /home/admin/obproxy
67 # oceanbase root server list
68 # format: ip:mysql_port,ip:mysql_port
69 rs_list: 172.72.8.11:2881;172.72.8.12:2881;172.72.8.13:2881
70 enable_cluster_checkout: false
71EOF
使用OBD初始化集群
1sh /etc/profile.d/obd.sh
2
3obd cluster deploy lhrob311cluster -c /tmp/obd_observer_obproxy.yaml -f
4
5obd cluster list
6obd cluster display lhrob311cluster
7
8obd cluster start lhrob311cluster
9
10-- 修改参数
11obd cluster edit-config lhrob311cluster
执行过程：
1[root@lhrobproxy soft]# obd cluster deploy lhrob311cluster -c /tmp/obd_observer_obproxy.yaml -f
2Update OceanBase-community-stable-el7 ok
3Update OceanBase-development-kit-el7 ok
4Download oceanbase-ce-3.1.1-4.el7.x86_64.rpm (46.21 M): 100% [###############################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################] Time: 0:00:18 2.58 MB/s
5Package oceanbase-ce-3.1.1 is available.
6Download obproxy-3.1.0-1.el7.x86_64.rpm (7.70 M): 100% [#####################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################] Time: 0:00:01 4.62 MB/s
7Package obproxy-3.1.0 is available.
8install oceanbase-ce-3.1.1 for local ok
9install obproxy-3.1.0 for local ok
10+-----------------------------------------------------------------------------+
11| Packages |
12+--------------+---------+---------+------------------------------------------+
13| Repository | Version | Release | Md5 |
14+--------------+---------+---------+------------------------------------------+
15| oceanbase-ce | 3.1.1 | 4.el7 | f19f8bfb67723712175fb0dfd60579196b3168f1 |
16| obproxy | 3.1.0 | 1.el7 | 0b17cf0459a3b53c5a2febb6572894d183154c64 |
17+--------------+---------+---------+------------------------------------------+
18Repository integrity check ok
19Parameter check ok
20Open ssh connection ok
21Remote oceanbase-ce-3.1.1-f19f8bfb67723712175fb0dfd60579196b3168f1 repository install ok
22Remote oceanbase-ce-3.1.1-f19f8bfb67723712175fb0dfd60579196b3168f1 repository lib check !!
23[WARN] z1(172.72.8.11) oceanbase-ce-3.1.1-f19f8bfb67723712175fb0dfd60579196b3168f1 require: libmariadb.so.3
24[WARN] z2(172.72.8.12) oceanbase-ce-3.1.1-f19f8bfb67723712175fb0dfd60579196b3168f1 require: libmariadb.so.3
25[WARN] z3(172.72.8.13) oceanbase-ce-3.1.1-f19f8bfb67723712175fb0dfd60579196b3168f1 require: libmariadb.so.3
26
27Remote obproxy-3.1.0-0b17cf0459a3b53c5a2febb6572894d183154c64 repository install ok
28Remote obproxy-3.1.0-0b17cf0459a3b53c5a2febb6572894d183154c64 repository lib check ok
29Try to get lib-repository
30Download oceanbase-ce-libs-3.1.1-4.el7.x86_64.rpm (155.15 K): 100% [#########################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################] Time: 0:00:00 1.87 MB/s
31Package oceanbase-ce-libs-3.1.1 is available.
32install oceanbase-ce-libs-3.1.1 for local ok
33Use oceanbase-ce-libs-3.1.1-58384f7ab4ee736e9d530f4bdd63c20ced0e7aba for oceanbase-ce-3.1.1-f19f8bfb67723712175fb0dfd60579196b3168f1
34Remote oceanbase-ce-libs-3.1.1-58384f7ab4ee736e9d530f4bdd63c20ced0e7aba repository install ok
35Remote oceanbase-ce-3.1.1-f19f8bfb67723712175fb0dfd60579196b3168f1 repository lib check ok
36Cluster status check ok
37Initializes observer work home ok
38Initializes obproxy work home ok
39lhrob311cluster deployed
40
41[root@lhrobproxy soft]# obd cluster list
42+------------------------------------------------------------------------+
43| Cluster List |
44+-----------------+------------------------------------+-----------------+
45| Name | Configuration Path | Status (Cached) |
46+-----------------+------------------------------------+-----------------+
47| lhrob311cluster | /root/.obd/cluster/lhrob311cluster | deployed |
48+-----------------+------------------------------------+-----------------+
49
50[root@lhrobproxy soft]# obd cluster start lhrob311cluster
51Get local repositories and plugins ok
52Open ssh connection ok
53Cluster param config check ok
54Check before start observer ok
55[WARN] (172.72.8.11) clog and data use the same disk (/)
56[WARN] (172.72.8.12) clog and data use the same disk (/)
57[WARN] (172.72.8.13) clog and data use the same disk (/)
58
59Check before start obproxy ok
60Start observer ok
61observer program health check ok
62Connect to observer ok
63Initialize cluster
64Cluster bootstrap ok
65Wait for observer init ok
66+-----------------------------------------------+
67| observer |
68+-------------+---------+------+-------+--------+
69| ip | version | port | zone | status |
70+-------------+---------+------+-------+--------+
71| 172.72.8.11 | 3.1.1 | 2881 | zone1 | active |
72| 172.72.8.12 | 3.1.1 | 2881 | zone2 | active |
73| 172.72.8.13 | 3.1.1 | 2881 | zone3 | active |
74+-------------+---------+------+-------+--------+
75
76Start obproxy ok
77obproxy program health check ok
78Connect to obproxy ok
79Initialize cluster
80+---------------------------------------------+
81| obproxy |
82+-----------+------+-----------------+--------+
83| ip | port | prometheus_port | status |
84+-----------+------+-----------------+--------+
85| 127.0.0.1 | 2883 | 2884 | active |
86+-----------+------+-----------------+--------+
87lhrob311cluster running
88[root@lhrobproxy soft]# obd cluster list
89+------------------------------------------------------------------------+
90| Cluster List |
91+-----------------+------------------------------------+-----------------+
92| Name | Configuration Path | Status (Cached) |
93+-----------------+------------------------------------+-----------------+
94| lhrob311cluster | /root/.obd/cluster/lhrob311cluster | running |
95+-----------------+------------------------------------+-----------------+
96[root@lhrobproxy soft]#
97
98[root@lhrobproxy soft]# netstat -tulnp| grep 288
99tcp 0 0 0.0.0.0:2883 0.0.0.0:* LISTEN 8048/obproxy
100tcp 0 0 0.0.0.0:2884 0.0.0.0:* LISTEN 8048/obproxy
101
102-- 剩余节点类似
103[root@lhrob1 log]# netstat -tulnp| grep 288
104tcp 0 0 0.0.0.0:2881 0.0.0.0:* LISTEN 8244/observer
105tcp 0 0 0.0.0.0:2882 0.0.0.0:* LISTEN 8244/observer
配置obproxy
https://open.oceanbase.com/articles/1100243
obproxy跟OB集群通信是使用sys租户内的一个内部账户proxyro。这个账户需要创建。
obproxy启动后，默认用 root@proxysys 登录，密码为空。需要改密码（通过proxy参数obproxy_sys_password指定）。
obproxy启动后，还需要修改proxyro的密码（通过proxy参数observer_sys_password指定），设置为跟OB集群里创建的proxyro密码一致才能链接那个OB集群。
1mysql -h127.1 -uroot@sys -P2881 -plhr -c -A oceanbase
2
3create user proxyro identified by 'lhr';
4alter user proxyro identified by 'lhr';
5grant select on *.* to proxyro;
6
7
8
9mysql -h127.1 -uroot@proxysys -P2883 -p
10alter proxyconfig set obproxy_sys_password='lhr';
11alter proxyconfig set observer_sys_password='lhr';
12show proxyconfig like '%sys_password%';
13
14
15mysql -h127.1 -uroot@sys -P2883 -plhr -c -A oceanbase
16mysql -uroot@sys -plhr -h192.168.66.35 -P28814
17
18select * from oceanbase.__all_server;
19show full processlist;
安装客户端
1yum install -y obclient mariadb mariadb-libs mariadb-devel
可以查询：
1mysql -uroot@proxysys#lhrob311cluster -p -h192.168.66.35 -P28814
2obclient -h 127.0.0.1 -uroot@proxysys -P2883
3obclient -h 127.0.0.1 -uroot@proxysys#lhrob311cluster -P2883
4
5
6mysql -uroot@sys -plhr -h192.168.66.35 -P28811
7mysql -uroot@sys -plhr -h192.168.66.35 -P28814
如下：
1C:\Users\lhrxxt>mysql -uroot@sys -plhr -h192.168.66.35 -P28814
2mysql: [Warning] Using a password on the command line interface can be insecure.
3Welcome to the MySQL monitor. Commands end with ; or \g.
4Your MySQL connection id is 92
5Server version: 5.6.25 OceanBase 3.1.1 (r4-8c615943cbd25a6f7b8bdfd8677a13a21709a05e) (Built Oct 21 2021 10:33:14)
6
7Copyright (c) 2000, 2020, Oracle and/or its affiliates. All rights reserved.
8
9Oracle is a registered trademark of Oracle Corporation and/or its
10affiliates. Other names may be trademarks of their respective
11owners.
12
13Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
14
15MySQL [(none)]> show databases;
16+--------------------+
17| Database |
18+--------------------+
19| oceanbase |
20| information_schema |
21| mysql |
22| SYS |
23| LBACSYS |
24| ORAAUDITOR |
25| test |
26+--------------------+
277 rows in set (0.64 sec)
28
29MySQL [(none)]> create database lhrdb;
30Query OK, 1 row affected (0.62 sec)
31
32MySQL [(none)]> select * from oceanbase.__all_server;
33+----------------------------+----------------------------+-------------+----------+----+-------+------------+-----------------+--------+-----------------------+------------------------------------------------------------------------+-----------+--------------------+--------------+----------------+-------------------+
34| gmt_create | gmt_modified | svr_ip | svr_port | id | zone | inner_port | with_rootserver | status | block_migrate_in_time | build_version | stop_time | start_service_time | first_sessid | with_partition | last_offline_time |
35+----------------------------+----------------------------+-------------+----------+----+-------+------------+-----------------+--------+-----------------------+------------------------------------------------------------------------+-----------+--------------------+--------------+----------------+-------------------+
36| 2021-11-03 10:07:29.148223 | 2021-11-03 15:36:29.125523 | 172.72.8.11 | 2882 | 1 | zone1 | 2881 | 0 | active | 0 | 3.1.1_4-8c615943cbd25a6f7b8bdfd8677a13a21709a05e(Oct 21 2021 10:33:14) | 0 | 1635907362335045 | 0 | 1 | 0 |
37| 2021-11-03 10:07:28.665950 | 2021-11-03 15:36:29.126133 | 172.72.8.12 | 2882 | 2 | zone2 | 2881 | 0 | active | 0 | 3.1.1_4-8c615943cbd25a6f7b8bdfd8677a13a21709a05e(Oct 21 2021 10:33:14) | 0 | 1635907363335302 | 0 | 1 | 0 |
38| 2021-11-03 10:07:28.675445 | 2021-11-03 15:36:29.126735 | 172.72.8.13 | 2882 | 3 | zone3 | 2881 | 1 | active | 0 | 3.1.1_4-8c615943cbd25a6f7b8bdfd8677a13a21709a05e(Oct 21 2021 10:33:14) | 0 | 1635907362334795 | 0 | 1 | 0 |
39+----------------------------+----------------------------+-------------+----------+----+-------+------------+-----------------+--------+-----------------------+------------------------------------------------------------------------+-----------+--------------------+--------------+----------------+-------------------+
403 rows in set (0.12 sec)
41
42MySQL [(none)]> select
43 -> zone,
44 -> concat(svr_ip, ':', svr_port) as observer,
45 -> concat(cpu_assigned, ' : ', cpu_total) as cpu_summary,
46 -> concat(mem_assigned/(1024*1024*1024),' : ', mem_total/(1024*1024*1024)) as mem_summary_gb,
47 -> concat(disk_assigned/(1024*1024*1024),' : ', disk_total/(1024*1024*1024)) as disk_summary_gb,
48 -> cast(cpu_weight as decimal(5,2)) as c_weight,
49 -> cast(memory_weight as decimal(5,2)) as m_weight,
50 -> cast(disk_weight as decimal(5,2)) as d_weight,
51 -> unit_num
52 -> from oceanbase.__all_virtual_server_stat
53 -> order by zone,observer;
54+-------+------------------+-------------+-----------------+-----------------+----------+----------+----------+----------+
55| zone | observer | cpu_summary | mem_summary_gb | disk_summary_gb | c_weight | m_weight | d_weight | unit_num |
56+-------+------------------+-------------+-----------------+-----------------+----------+----------+----------+----------+
57| zone1 | 172.72.8.11:2882 | 2.5 : 10 | 1.5000 : 6.0000 | 2.0000 : 2.0000 | 0.50 | 0.50 | 0.00 | 1 |
58| zone2 | 172.72.8.12:2882 | 2.5 : 10 | 1.5000 : 6.0000 | 2.0000 : 2.0000 | 0.50 | 0.50 | 0.00 | 1 |
59| zone3 | 172.72.8.13:2882 | 2.5 : 10 | 1.5000 : 6.0000 | 2.0000 : 2.0000 | 0.50 | 0.50 | 0.00 | 1 |
60+-------+------------------+-------------+-----------------+-----------------+----------+----------+----------+----------+
613 rows in set (0.40 sec)
接下来就是创建租户啥的操作，这里不再详细演示。
巡检脚本
可以使用麦老师的OceanBase的巡检脚本(https://www.xmmup.com/shujukuxunjianjiaoben.html) ，脚本目前不是很详细，当然一直在完善中，如下：
1C:\Users\lhrxxt>mysql -uroot@sys -plhr -h192.168.66.35 -P28814 -f --silent < D:\DB_OceanBase_HC_lhr_v7.0.0.sql > D:\lhr_OceanBase_check.html
2mysql: [Warning] Using a password on the command line interface can be insecure.
运行结果：
其它不再列举。
这里只列出部分结果，其它的详细内容可以参考：https://share.weiyun.com/5lb2U2M
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