1主备搭建前准备
主机类型 | IP地址 | 实例名 | 操作系统 | ||
主库 | 192.168.125.140(外部)192.168.125.140(内部) | GRP1_RT_01 | Centos7.5.1804 | ||
备库 | 192.168.125.141(外部)192.168.125.141(内部) | GRP1_RT_02 | Centos 7.5.1804 | ||
监视器 | 192.168.125.140(外部)192.168.125.140(内部) | Centos 7.5.1804 | |||
实例名 | PORT_NUM | MAL_INST_DW_PORT | MAL_HOST | MAL_PORT | MAL_DW_PORT |
GRP1_RT_01 | 5236 | 33141 | 192.168.125.140 | 61141 | 52141 |
GRP1_RT_02 | 5236 | 33142 | 192.168.125.141 | 61142 | 52142 |
B2主备库初始化、启动服务、开启归档
(注:一般初始化之后前台启动一下在退出算是一次完整的初始化)
2.1主库初始化
- 主库初始化: ./dminit path=/home/dmdba/dmdbms/data EXTENT_SIZE=32 PAGE_SIZE=32 LOG_SIZE=2048 CASE_SENSITIVE=y CHARSET=1
2.启动数据库:./dmserver path=/home/dmdba/dmdbms/data/DAMENG/dm.ini
3.注册实例服务(root注册):
cd /opt/dmdbms/ /script/root
./dm_service_installer.sh -t dmserver -dm_ini /home/dmdba/dmdbms/data/DAMENG/dm.ini -p GRP1_RT_01 -m -mount
4.启用归档:./disql执行
ALTER DATABASE MOUNT;
ALTER DATABASE ADD ARCHIVELOG 'DEST=/opt/dmdbms/arch, TYPE = local,FILE_SIZE = 1024, SPACE_LIMIT = 2048';
ALTER DATABASE ARCHIVELOG;
ALTER DATABASE OPEN;
2.2备库初始化
1.备库初始化:./dminit path=/home/dmdba/dmdbms/data EXTENT_SIZE=32 PAGE_SIZE=32 LOG_SIZE=2048 CASE_SENSITIVE=y CHARSET=1
2.启动数据库:./dmserver path=/home/dmdba/dmdbms/data/DAMENG/dm.ini
3.注册实例服务:
cd /opt/dmdbms/ /script/root
./dm_service_installer.sh -t dmserver -dm_ini /home/dmdba/dmdbms/data/DAMENG/dm.ini -p GRP1_RT_02 -m mount
3脱机备份还原
1. 正常关闭数据库
cd /opt/dmdbms/bin/
./DmServiceDMSERVER stop
2. 进行脱机备份
cd /opt/dmdbms/bin
./dmrman
backup database '/home/dmdba/dmdbms/data/DAMENG/dm.ini' to backup_file_01 backupset '/home/dmdba/dmdbms/data/DAMENG/backup_file_01'
3. 拷贝备份文件到备库所在机器
scp -r /home/dmdba/dmdbms/data/DAMENG/backup_file_01/ dmdba@192.168.125.141:/home/dmdba/dmdbms/data/DAMENG
4. 执行脱机数据库还原与恢复
检查
check backupset '/home/dmdba/dmdbms/data/DAMENG/backup_file_01'
还原
restore database '/home/dmdba/dmdbms/data/DAMENG/dm.ini' from backupset '/home/dmdba/dmdbms/data/DAMENG/backup_file_01'
回复
recover database '/home/dmdba/dmdbms/data/DAMENG/dm.ini' from backupset '/home/dmdba/dmdbms/data/DAMENG/backup_file_01'
更新
recover database '/home/dmdba/dmdbms/data/DAMENG/dm.ini' update db_magic
4配置主库文件
4.1配置dm.ini
INSTANCE_NAME = GRP1_RT_01 #实例名,建议使用“组名_守护环境_序号”的命名方式,总长度不能超过 16
PORT_NUM = 5236 #数据库实例监听端口,即对外端口,与 dmmal.ini 中 的 MAL_INST_PORT 对应
DW_INACTIVE_INTERVAL = 60 #接收守护进程消息超时时间
ALTER_MODE_STATUS = 0 #不允许手动方式修改实例模式/状态/OGUID,
ENABLE_OFFLINE_TS = 2 #不允许备库 OFFLINE 表空间
MAL_INI = 1 #打开 MAL 系统
ARCH_INI = 1 #打开归档配置
RLOG_SEND_APPLY_MON = 64 #统计最近 64 次的日志发送信息
4.2配置dmmal.ini
MAL_CHECK_INTERVAL = 5 #MAL链路检测时间间隔
MAL_CONN_FAIL_INTERVAL = 5 #判定MAL链路断开的时间
[MAL_INST1]
MAL_INST_NAME =GRP1_RT_01 #实例名,和dm.ini中的一致
MAL_HOST = 192.168.125.140 #MAL系统监听TCP连接的IP地址
MAL_PORT = 61141 #MAL系统监听TCP连接的端口
MAL_INST_HOST = 192.168.125.140 #实例的对外服务IP地址
MAL_INST_PORT = 5236 #实例的对外服务端口,和dm.ini中的PORT_NUM一致
MAL_DW_PORT = 52141 #实例对应的守护进程监听TCP连接的端口
MAL_INST_DW_PORT = 33141 #实例监听守护进程 TCP 连接的端口 (守护V4.0配置,V3.0在dm.ini中配置DW_PORT)
[MAL_INST2]
MAL_INST_NAME = GRP1_RT_02
MAL_HOST = 192.168.125.141
MAL_PORT = 61142
MAL_INST_HOST = 192.168.125.141
MAL_INST_PORT = 5236
MAL_DW_PORT = 52142
MAL_INST_DW_PORT = 33142
4.3配置dmarch.ini
[ARCHIVE_REALTIME]
ARCH_TYPE = REALTIME
ARCH_DEST = GRP1_RT_02
[ARCHIVE_LOCAL1]
ARCH_TYPE = LOCAL
ARCH_DEST = /home/dmdba/dmdbms/data/DAMENG/arch
ARCH_FILE_SIZE = 128
ARCH_SPACE_LIMIT = 102400
4.4配置dmwatcher.ini
[GRP1_RT_01]
DW_TYPE = GLOBAL #全局守护类型
DW_MODE = MANUAL #手动切换模式
DW_ERROR_TIME = 10 #远程守护进程故障认定时间
INST_RECOVER_TIME = 60 #主库守护进程启动恢复的间隔时间
INST_ERROR_TIME = 10 #本地实例故障认定时间
INST_OGUID = 453331 #守护系统唯一OGUID值
INST_INI = /home/dmdba/dmdbms/data/DAMENG/dm.ini #dm.ini配置文件路径
INST_AUTO_RESTART = 1 #打开实例的自动拉起功能
INST_STARTUP_CMD = /home/dmdba/dmdbms/bin/dmserver
#命令行方式启动
4.5 oguid
./dmserver /data/DAMENG/dm.ini mount
#新开窗口,进入disql,设置参数
SQL>SP_SET_PARA_VALUE(1, 'ALTER_MODE_STATUS', 1);
SQL>sp_set_oguid(453331);
SQL>alter database primary;
SQL>SP_SET_PARA_VALUE(1, 'ALTER_MODE_STATUS', 0);
5配置备库文件
5.1配置dm.ini
INSTANCE_NAME = GRP1_RT_02 #实例名,建议使用“组名_守护环境_序号”的命名方式,总长度不能超过 16
PORT_NUM = 5236 #数据库实例监听端口,即对外端口,与 dmmal.ini 中 的 MAL_INST_PORT 对应
DW_INACTIVE_INTERVAL = 60 #接收守护进程消息超时时间
ALTER_MODE_STATUS = 0 #不允许手动方式修改实例模式/状态/OGUID,
ENABLE_OFFLINE_TS = 2 #不允许备库 OFFLINE 表空间
MAL_INI = 1 #打开 MAL 系统
ARCH_INI = 1 #打开归档配置
RLOG_SEND_APPLY_MON = 64 #统计最近 64 次的日志发送信息
5.2配置dmmal.ini
MAL_CHECK_INTERVAL = 5 #MAL链路检测时间间隔
MAL_CONN_FAIL_INTERVAL = 5 #判定MAL链路断开的时间
[MAL_INST1]
MAL_INST_NAME =GRP1_RT_01 #实例名,和dm.ini中的一致
MAL_HOST = 192.168.125.140 #MAL系统监听TCP连接的IP地址
MAL_PORT = 61141 #MAL系统监听TCP连接的端口
MAL_INST_HOST = 192.168.125.140 #实例的对外服务IP地址
MAL_INST_PORT = 5236 #实例的对外服务端口,和dm.ini中的PORT_NUM一致
MAL_DW_PORT = 52141 #实例对应的守护进程监听TCP连接的端口
MAL_INST_DW_PORT = 33141 #实例监听守护进程 TCP 连接的端口 (守护V4.0配置,V3.0在dm.ini中配置DW_PORT)
[MAL_INST2]
MAL_INST_NAME = GRP1_RT_02
MAL_HOST = 192.168.125.141
MAL_PORT = 61142
MAL_INST_HOST = 192.168.125.141
MAL_INST_PORT = 5236
MAL_DW_PORT = 52142
MAL_INST_DW_PORT = 33142
5.3配置dmarch.ini
[ARCHIVE_REALTIME]
ARCH_TYPE = REALTIME
ARCH_DEST = GRP1_RT_01
[ARCHIVE_LOCAL1]
ARCH_TYPE = LOCAL
ARCH_DEST = /home/dmdba/dmdbms/data/DAMENG/arch
ARCH_FILE_SIZE = 128
ARCH_SPACE_LIMIT = 102400
5.4配置dmwatcher.ini
[GRP1_RT_01]
DW_TYPE = GLOBAL #全局守护类型
DW_MODE = MANUAL #手动切换模式
DW_ERROR_TIME = 10 #远程守护进程故障认定时间
INST_RECOVER_TIME = 60 #主库守护进程启动恢复的间隔时间
INST_ERROR_TIME = 10 #本地实例故障认定时间
INST_OGUID = 453331 #守护系统唯一OGUID值
INST_INI = /home/dmdba/dmdbms/data/DAMENG/dm.ini #dm.ini配置文件路径
INST_AUTO_RESTART = 1 #打开实例的自动拉起功能
INST_STARTUP_CMD = /home/dmdba/dmdbms/bin/dmserver
#命令行方式启动
5.5 oguid
./dmserver /data/DAMENG/dm.ini mount
#新开窗口,进入disql,设置参数
SQL>SP_SET_PARA_VALUE(1, 'ALTER_MODE_STATUS', 1);
SQL>sp_set_oguid(453331);
SQL>alter database standby;
SQL>SP_SET_PARA_VALUE(1, 'ALTER_MODE_STATUS', 0);
6配置监视器
(由于电脑原因,所以将监视器配在了主库上)在主库的DAMENG下创建dmmonitor.ini文件
MON_DW_CONFIRM = 0 #非确认监视器模式
MON_LOG_PATH = /home/dmdba/dmdbms/data/log #监视器日志文件存放路径
MON_LOG_INTERVAL = 60 #每隔60s定时记录系统信息到日志文件
MON_LOG_FILE_SIZE = 32
MON_LOG_SPACE_LIMIT = 0
[GRP1_RT_01]
MON_INST_OGUID = 453331 #组GRP1_RT_01的唯一OGUID值
#以下配置为监视器到组GRP1_RT_01的守护进程的连接信息,以“IP:PORT”的形式配置
#IP对应dmmal.ini中的MAL_HOST,PORT对应dmmal.ini中的MAL_DW_PORT
MON_DW_IP = 192.168.125.140:52141
MON_DW_IP = 192.168.125.141:52142
7注册服务
(需要root用户注册3个服务:dmserver、dmwatcher、dmmonitor服务,因为2目录已经注册了dmserver,所以只需注册剩下两个)
7.1主库注册服务
(由于电脑问题,监视服务注册在了主库上)
./dm_service_installer.sh -t dmwatcher -watcher_ini /home/dmdba/dmdbms/data/DAMENG/dmwatcher.ini -p GRP1_RT_01
./dm_service_installer.sh -t dmmonitor -monitor_ini /dm8/data/DAMENG/dmmonitor.ini -p DMMONITOR
7.2备库注册服务
./dm_service_installer.sh -t dmwatcher -watcher_ini /dm8/data/DAMENG/dmwatcher.ini -p GRP1_RT_02
8服务开关顺序
8.1打开集群顺序
(1)启动主库和备库的实例服务
[dmdba@localhost bin]$cd /home/dmdba/dmdbms/bin
[dmdba@localhost bin]$./DmServiceGRP1_RT_01 start
Starting DmServiceGRP1_RT_01: [OK]
[dmdba@localhost bin]$cd /home/dmdba/dmdbms/bin
[dmdba@localhost bin]$./DmServiceGRP1_RT_02 start
Starting DmServiceGRP1_RT_02: [OK]
(2)启动主库和备库的数据守护服务
[dmdba@localhost bin]$./DmWatcherServiceGRP1_RT_01 start
Starting DmWatcherServiceGRP1_RT_01: [OK]
[dmdba@localhost bin]$./DmWatcherServiceGRP1_RT_02 start
Starting DmWatcherServiceGRP1_RT_02 [OK]
(3)启动监视器
[dmdba@localhost bin]$cd /home/dmdba/dmdbms/bin
[dmdba@localhost bin]$./DmMonitorServiceGRP1_RT_01 start
Starting DmMonitorServiceGRP1_RT_01: [OK]
8.2关闭集群顺序
(1)关闭监视器服务
[dmdba@localhost bin]$cd /home/dmdba/dmdbms/bin
[dmdba@localhost bin]$./DmMonitorServiceMonitor stop
Stoping DmMonitorServiceMonitor: [OK]
(2)关闭备库数据守护进程
[dmdba@localhost bin]$cd /home/dmdba/dmdbms/bin
[dmdba@localhost bin]$./DmWatcherServiceGRP1_RT_02 stop
Stoping DmWatcherServiceGRP1_RT_02 [OK]
(3)关闭主库数据守护进程
[dmdba@localhost bin]$cd /home/dmdba/dmdbms/bin
[dmdba@localhost bin]$./DmWatcherServiceGRP1_RT_01 stop
Stoping DmWatcherServiceGRP1_RT_01: [OK]
(4)关闭主库实例服务
[dmdba@localhost bin]$cd /home/dmdba/dmdbms/bin
[dmdba@localhost bin]$./DmServiceGRP1_RT_01 stop
Stoping DmServiceGRP1_RT_01: [OK]
(5)关闭备库实例服务
[dmdba@localhost bin]$cd /home/dmdba/dmdbms/bin
[dmdba@localhost bin]$./DmServiceGRP1_RT_02 stop
Stoping DmServiceGRP1_RT_02: [OK]