序号 | 项目 | 内容 | 官方建议 |
---|---|---|---|
1 | CPU | 2C | CPU数量不低于2 |
2 | MEMOERY | 8G | 内存不低于16G |
3 | DISK | 200G(/ob) | N/A |
4 | IP | 192.168.10.181 | 可单机、分布式多种方式部署 |
5 | OS | rhel 7.6 | |
6 | oceanbase | 社区版3.1 | N/A |
7 |
官网介质下载地址
共6个rpm包,下载后上传至安装主机soft目录。
yum install -y yum-utils yum-config-manager --add-repo https://mirrors.aliyun.com/oceanbase/OceanBase.repo # 创建一个目录用于下载 mkdir soft cat > rpm_list <<EOF oceanbase-ce-3.1.0-3.el7.x86_64.rpm oceanbase-ce-libs-3.1.0-3.el7.x86_64.rpm obproxy-3.1.0-1.el7.x86_64.rpm obclient-2.0.0-2.el7.x86_64.rpm ob-deploy-1.1.0-1.el7.x86_64.rpm libobclient-2.0.0-2.el7.x86_64.rpm oceanbase-ce-sql-parser-3.1.0-3.el7.x86_64.rpm EOF wget -B https://mirrors.aliyun.com/oceanbase/community/stable/el/7/x86_64/ -i rpm_list -P soft # or yum install obclient libobclient obproxy oceanbase-ce oceanbase-ce-libs ob-deploy --downloadonly --downloaddir=soft
在页面https://gitee.com/oceanbase/obdeploy/blob/master/example/mini-local-example.yaml,拷贝mini-local-example.yaml内容并保存为mini-local-example.yaml,上传至安装服务器soft目录。
cat > mini-local-example.yaml <<-EOF oceanbase-ce: servers: # Please don't use hostname, only IP can be supported - 127.0.0.1 global: home_path: /root/observer # Please set devname as the network adaptor's name whose ip is in the setting of severs. # if set severs as "127.0.0.1", please set devname as "lo" # if current ip is 192.168.1.10, and the ip's network adaptor's name is "eth0", please use "eth0" devname: lo mysql_port: 2881 rpc_port: 2882 zone: zone1 cluster_id: 1 # please set memory limit to a suitable value which is matching resource. memory_limit: 8G system_memory: 4G stack_size: 512K cpu_count: 16 cache_wash_threshold: 1G __min_full_resource_pool_memory: 268435456 workers_per_cpu_quota: 10 schema_history_expire_time: 1d # The value of net_thread_count had better be same as cpu's core number. 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_disk_percentage: 20 syslog_level: INFO enable_syslog_recycle: true max_syslog_file_count: 4 # root_password: # root user password, can be empty EOF
以下操作如无特别说明,均以root用户执行。
#临时关闭 setenforce 0 getenforce #开机不启动selinux,需重启生效。已临时关闭,本次不需要重启生效。 sed -i 's/=enforcing/=disabled/g' /etc/selinux/config #查看配置已生效 cat /etc/selinux/config
#关闭防火墙 systemctl stop firewalld #开机不启动防火墙 systemctl disable firewalld
#修改主机名为oceanbase,当前已生效,退出会话,再登录后显示新主机名 hostnamectl set-hostname oceanbase
#主机名解析添加主机信息 cat >> /etc/hosts << EOF 192.168.10.182 oceanbase EOF #查看主机名信息 cat /etc/hosts
oceanbase安装和维护均由oceanbase用户操作。[生产的OB默认运行在admin用户]
#添加oceanbase用户 useradd ober #更改密码 echo "ober" | passwd --stdin ober #运行oceanbase可运行任何命令,不需要密码 visudo #添加oceanbase一行内容 ## Same thing without a password # %wheel ALL=(ALL) NOPASSWD: ALL ober ALL=(ALL) NOPASSWD: ALL
以root用户安装时,默认安装在/root/observer目录下,这里以oceanbase用户安装在/ob/observer目录下。
rpm -ql oceanbase-ce-3.1.0-3.el7.x86_64 for pkg in $(ls -tr ./*.rpm);do echo $pkg; rpm -ql $pkg done
# 查看安装目录大小 [root@progs oceanbase]# df -hT /ups Filesystem Type Size Used Avail Use% Mounted on /dev/mapper/upsvg-upslv xfs 64G 44G 21G 69% /ups [root@progs oceanbase]# # 检查属主、属组 [root@progs oceanbase]# ls -ld /ups/app/oceanbase drwxr-xr-x 2 ober ober 6 Aug 28 20:39 /ups/app/oceanbase [root@progs oceanbase]#
#添加内容 echo "fs.aio-max-nr=1048576" >> /etc/sysctl.conf #配置生效 sysctl -p
# for oceanbase ## 修改内核异步 I/O 限制 fs.aio-max-nr=1048576 ## 网络优化 net.core.somaxconn = 2048 net.core.netdev_max_backlog = 10000 net.core.rmem_default = 16777216 net.core.wmem_default = 16777216 net.core.rmem_max = 16777216 net.core.wmem_max = 16777216 net.ipv4.ip_local_port_range = 3500 65535 net.ipv4.ip_forward = 0 net.ipv4.conf.default.rp_filter = 1 net.ipv4.conf.default.accept_source_route = 0 net.ipv4.tcp_syncookies = 0 net.ipv4.tcp_rmem = 4096 87380 16777216 net.ipv4.tcp_wmem = 4096 65536 16777216 net.ipv4.tcp_max_syn_backlog = 16384 net.ipv4.tcp_fin_timeout = 15 net.ipv4.tcp_max_syn_backlog = 16384 net.ipv4.tcp_tw_reuse = 1 net.ipv4.tcp_tw_recycle = 1 net.ipv4.tcp_slow_start_after_idle=0 vm.swappiness = 0 vm.min_free_kbytes = 2097152 # 此处为 OceanBase 数据库的 data 目录 kernel.core_pattern = /data/core-%e-%p-%t
其中,kernel.core_pattern
中的 /data
为 OceanBase 数据库的 data
目录。如果您只是测试,您可以只设置 fs.aio-max-nr=1048576
。
#添加内容 cat >> /etc/security/limits.d/98-ober.conf << EOF ober soft nofile 655350 ober hard nofile 655350 root soft nofile 655350 root hard nofile 655350 EOF # 生产环境建议配置 root soft nofile 655350 root hard nofile 655350 * soft nofile 655350 * hard nofile 655350 * soft stack 20480 * hard stack 20480 * soft nproc 655360 * hard nproc 655360 * soft core unlimited * hard core unlimited #退出当前会话,重新登录,使配置生效。 #检查open files当前值,应为655350,否则后续启动集群会报错 ulimit -n
获取OceanBase数据库最快的方式是使用数据库部署工具OceanBase Deployer(简称OBD),因此推荐使用此方式体验OceanBase数据库。
通过 YUM 软件源安装 OBD
sudo yum install -y ob-deploy source /etc/profile.d/obd.sh
安装OBD
# oceanbase用户安装 sudo yum install -y ob-deploy-1.1.0-1.el7.x86_64.rpm # 用户使变量生效 source /etc/profile.d/obd.sh
当前主机不能连接公网,将之前OceanBase数据库的rpm离线软件包镜像到本地。
ls ./*.rpm
将OceanBase数据库的离线软件包加入本地镜像:
which obd obd mirror clone *.rpm
clone命令执行后,将本地上rpm包复制到~/.obd/mirror目录上
yaml是批量安装调用的内容,当前OceanBase提供多种类型配置文件,分别为mini-local-example.yaml、mini-single-example.yaml、mini-distributed-example.yaml。
根据您的资源条件选择正确的配置文件:
适用于个人设备(内存不低于 8G)。
适用于高配置 ECS 或物理服务器(不低于 16 核 64G 内存)。
这里使用本地单节点配置:mini-local-example.yaml
默认root用户安装可不做修改,本次将安装目录home_path由/root/observer更改为/ob/observer。
因以oceanbase用户安装,确保/ob目录存在,属主、属组均为oceanbase,observer安装目录不需要创建。
- 修改 home_path, 这是 OceanBase 数据库的工作目录
- 修改 mysql_port,这是 OceanBase 数据库 SQL 服务协议端口号。
- 修改 rpc_port,这是 OceanBase 数据库集群内部通信的端口号
[oceanbase@oceanbase ~]$ vi mini-local-example.yaml oceanbase-ce: version: 3.1.0 servers: # Please don't use hostname, only IP can be supported - 192.168.10.181 global: home_path: /ups/app/oceanbase # Please set devname as the network adaptor's name whose ip is in the setting of severs. # if set severs as "127.0.0.1", please set devname as "lo" # if current ip is 192.168.1.10, and the ip's network adaptor's name is "eth0", please use "eth0" devname: ens32 mysql_port: 2881 rpc_port: 2882 zone: zone1 cluster_id: 1 # please set memory limit to a suitable value which is matching resource. memory_limit: 8G system_memory: 4G stack_size: 512K cpu_count: 2 cache_wash_threshold: 1G __min_full_resource_pool_memory: 268435456 workers_per_cpu_quota: 10 schema_history_expire_time: 1d # The value of net_thread_count had better be same as cpu's core number. 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_disk_percentage: 5 syslog_level: INFO enable_syslog_recycle: true max_syslog_file_count: 4 # root_password: # root user password, can be empty
obd cluster deploy <deploy_name> -c <deploy_config_path>
在oceanbase用户下,部署名为biu集群,使用配置文件/soft/mini-local-example.yaml
[oceanbase@oceanbase ~]$ obd cluster deploy biu -c soft/mini-local-example.yaml
说明:obd安装首先默认使用remote官方的镜像进行安装,remote失败时,OBD才会尝试使用local镜像,当前部署集群成功。
建议官方添加参数,增加obd mirror delete选项,删除remote镜像路径,或者增加disable选项,禁用remote镜像路径,或者增加其它参数,优先使用本地mirror。
mv ~/.obd/mirror/remote ~/.obd/mirror/remote_bak
如果要本地安装需删除或者重命名remote目录
obd cluster start <deploy_name>
如:
[oceanbase@oceanbase ~]$ obd cluster start biu
注:WARN是当前主机仅8G内存,低于建议的最低配置16G,测试环境不影响使用。
#查看obd管理的集群列表 obd cluster list #查看集群状态 obd cluster display biu
OceanBase 数据库有数百个配置项,有些配置是耦合的,在您熟悉 OceanBase 数据库之前,不建议您修改示例配件文件中的配置。此处示例用来说明如何修改配置,并使之生效。
# 使用 edit-config 命令进入编辑模式,修改集群配置 obd cluster edit-config biu # 修改 sys_bkgd_migration_retry_num 为 5 # 注意 sys_bkgd_migration_retry_num 值最小为 3 # 保存并退出后,obd 会告知您如何使得此次改动生效 # 此配置项仅需要 reload 即可生效 obd cluster reload biu
stop
命令用于停止一个运行中的集群。如果 start
命令执行失败,但有进程没有退出,请使用 destroy
命令。
obd cluster stop biu
运行以下命令销毁集群:
# 启动集群时失败,可以能会有一些进程停留。 # 此时可用 -f 选项强制停止并销毁集群 obd cluster destroy biu
#查看帮助 obd -h
1) 在线安装-本次不使用
如您的机器已添加OceanBase官方YUM源作为软件源,使用以下命令直接安装:
sudo yum install -y obclient
2) 离线安装-本次使用
前述已经下载了客户端离线包,分别安装OBClient库文件和软件包,采用本地安装:
sudo rpm -ivh libobclient-2.0.0-2.el7.x86_64.rpm obclient-2.0.0-2.el7.x86_64.rpm
注意:社区版没有oracle模式
obclient -u[用户名]@[租户名]#[集群名称] -P[端口号] -h[ip地址] -p[密码] -D[数据库名] -c
说明
-c
项的话,则连接至租户后 Hint 无法生效。-D[数据库名]
项的话,则默认数据库同用户名一致运行以下命令,使用 OBClient 客户端连接 OceanBase 数据库:
obclient -h<your_ip> -P<observer_mysql_port> -uroot
如
进程第一次启动后,用mysql客户端登录(mysql版本5.5/5.6/5.7) ,root密码为空
obclient -h192.168.10.181 -P2881 -uroot
ob命令兼容部分mysql,查看数据库:
MySQL [(none)]> show databases; +--------------------+ | Database | +--------------------+ | oceanbase | | information_schema | | mysql | | SYS | | LBACSYS | | ORAAUDITOR | | test | +--------------------+ 7 rows in set (0.006 sec)
租户就是实例,是逻辑实例,没有单独的进程
-- 查集群各个节点的剩余资源 select a.zone,concat(a.svr_ip,':',a.svr_port) observer, cpu_total, (cpu_total-cpu_assigned) cpu_free, round(mem_total/1024/1024/1024) mem_total_gb, round((mem_total-mem_assigned)/1024/1024/1024) mem_free_gb, usec_to_time(b.last_offline_time) last_offline_time, usec_to_time(b.start_service_time) start_service_time, b.status, b.build_version , usec_to_time(a.stop_time) stop_time from __all_virtual_server_stat a join __all_server b on (a.svr_ip=b.svr_ip and a.svr_port=b.svr_port) order by a.zone, a.svr_ip ; -- 查询集群里当前资源使用细节 select t1.name resource_pool_name, t2.`name` unit_config_name, t2.max_cpu, t2.min_cpu, round(t2.max_memory/1024/1024/1024) max_mem_gb, round(t2.min_memory/1024/1024/1024) min_mem_gb, t3.unit_id, t3.zone, concat(t3.svr_ip,':',t3.`svr_port`) observer,t4.tenant_id, t4.tenant_name from __all_resource_pool t1 join __all_unit_config t2 on (t1.unit_config_id=t2.unit_config_id) join __all_unit t3 on (t1.`resource_pool_id` = t3.`resource_pool_id`) left join __all_tenant t4 on (t1.tenant_id=t4.tenant_id) order by t1.`resource_pool_id`, t2.`unit_config_id`, t3.unit_id ;
-- 资源单位 CREATE resource unit my_unit_config 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='10G'; -- 资源池 CREATE resource pool pool_mysql_01 unit = 'my_unit_config', unit_num = 1; -- 租户 CREATE tenant mysql01 resource_pool_list=('pool_mysql_01'), primary_zone='RANDOM',comment 'mysql tenant/instance', charset='utf8' set ob_tcp_invited_nodes='%', ob_compatibility_mode='mysql'; -- 查看 select * from __all_tenant\G select t1.name resource_pool_name, t2.`name` unit_config_name, t2.max_cpu, t2.min_cpu, round(t2.max_memory/1024/1024/1024) max_mem_gb, round(t2.min_memory/1024/1024/1024) min_mem_gb, t3.unit_id, t3.zone, concat(t3.svr_ip,':',t3.`svr_port`) observer,t4.tenant_id, t4.tenant_name from __all_resource_pool t1 join __all_unit_config t2 on (t1.unit_config_id=t2.unit_config_id) join __all_unit t3 on (t1.`resource_pool_id` = t3.`resource_pool_id`) left join __all_tenant t4 on (t1.tenant_id=t4.tenant_id) order by t1.`resource_pool_id`, t2.`unit_config_id`, t3.unit_id ;
https://www.oceanbase.com/community/articles/1100213
https://open.oceanbase.com/quickStart
[ober@progs biu]$ obd cluster start biu Get local repositories and plugins ok Open ssh connection ok Cluster param config check ok Check before start observer ok [WARN] (192.168.10.181) clog and data use the same disk (/ups) Start observer ok observer program health check ok Connect to observer x [ERROR] Failed to connect oceanbase-ce [ober@progs biu]$ ps -ef|grep observer ober 11004 10392 0 21:52 pts/0 00:00:00 grep --color=auto observer [ober@progs biu]$
[2021-08-28 21:50:41.106331] ERROR easy_client_dispatch (easy_client.c:30) [10651][8][YB42C0A80AB5-0005CA9EE244110E] [lt=5] [dc=0] easy_io_dispatch is failure: easy not started [2021-08-28 21:50:46.120475] ERROR easy_client_dispatch (easy_client.c:30) [10651][8][YB42C0A80AB5-0005CA9EE244110F] [lt=12] [dc=0] easy_io_dispatch is failure: easy not started [2021-08-28 21:50:46.708890] ERROR [SERVER.OMT] init (ob_multi_tenant.cpp:184) [10646][0][Y0-0000000000000000] [lt=6] [dc=0] node quota should greater than 1(node_quota_=0.000000000000000000e+00, ret=-4002) BACKTRACE:0x91613ee 0x912f6c1 0x21562ef 0x2155f3b 0x2155d02 0x4706f66 0x8ad6864 0x897e185 0x897382a 0x2117d91 0x7fc8137d03d5 0x2116ae9 [2021-08-28 21:50:46.709167] ERROR [SERVER] init_multi_tenant (ob_server.cpp:1163) [10646][0][Y0-0000000000000000] [lt=254] [dc=0] init multi tenant fail(ret=-4002) BACKTRACE:0x91613ee 0x912f6c1 0x211b3c4 0x211aeab 0x211ac11 0x2119ba8 0x897f0a2 0x897382a 0x2117d91 0x7fc8137d03d5 0x2116ae9 [2021-08-28 21:50:46.709346] ERROR [SERVER] init (ob_server.cpp:299) [10646][0][Y0-0000000000000000] [lt=120] [dc=0] init multi tenant fail(ret=-4002) BACKTRACE:0x91613ee 0x912f6c1 0x211b3c4 0x211aeab 0x211ac11 0x2119ba8 0x89755c0 0x2117d91 0x7fc8137d03d5 0x2116ae9 [2021-08-28 21:51:47.785700] ERROR [SERVER] main (main.cpp:488) [10646][0][Y0-0000000000000000] [lt=3] [dc=0] observer init fail(ret=-4002) BACKTRACE:0x91613ee 0x912f6c1 0x211b3c4 0x211aeab 0x211ac11 0x2119ba8 0x2118084 0x7fc8137d03d5 0x2116ae9