标签：步骤 limit des 协议 mount int database monitor server
解决方案：配置实时主备，mpp主备，读写分离
实现原理：主库产生redo,传到备库，备库接收并重新应用redo日志实现备库与主库的同步。
组成：主库，备库，redo日志，redo日志传输，重演，守护进程，监视器，mal系统。
Mal系统：基于tcp协议实现的一种内部通信机制，DM通过MAL实现redo日志传输。实现实例之间的消息通讯。
本地归档：redo写入本地归档日志文件，不能被覆盖。
实时归档：主库产生的redo日志，通过mal传到备库，只有在主库配置为primary模库，才能生效。
即时归档：主库将redo日志写入redo日志文件后，通过mal系统发送到备库。（读写分离集群用到）
异步归档：由主库和备库上配置定时器触发，根据异步备库curlsn信息，扫描本地的归档目录，获取redo日志，发送到异步的备库。
归档状态：本地归档：实时归档和即时归档：valid invalid
异步归档：valid
OGUID:数据守护唯一标识码，配置时，用户指定。
同一守护进程组中所有的数据库，守护进程和监视器，都必须配置相同的oguid.
Select oguid from v$instance;
监视器：作用：监控，管理数据守护系统确认状态信息发起故障自动接管命令。
监视器模式：
1、监控模式：最多允许同时启动10个监视器
2、确认模式：一个数据守护系统只能有一个确认监视器，实现自动接管理
。部署：三台机器（主机，备机，监视器）
dwp 192.168.1.18 主库
dws 192.168.1.20 备库
dwm 192.168.1.60 监视器
数据库名 实例名 PORT_NUM MAL_INST_DW_PORT MAL_HOST MAL_PORT MAL_DW_PORT
主库 DAMENG GRP1_RT_01 5236 45101 192.168.1.18 55101 65101
备库 DAMENG GRP1_RT_02 5236 45121 192.168.1.20 55121 65121
主库备库关闭实例库
关闭实例，冷备数据
[dmdba@localhost bin]$ ./dmrman CTLSTMT="BACKUP DATABASE ‘/dm8/data/DAMENG/dm.ini‘ FULL TO BACKUP_FILE1 BACKUPSET ‘/dm8/backup/BACKUP_FILE_01‘"
把主库备份传到备份（先去备库下建/dm8/backup目录[root@localhost ~]# mkdir -p /dm8/backup）
[dmdba@localhost bin]$ cd ../backup
[dmdba@localhost backup]$ scp BACKUP_FILE_01/*.* 192.168.1.20:/dm8/backup/
[root@localhost ~]# su - dmdba
[dmdba@localhost ~]cd /dm8/bin
[dmdba@localhost bin]$./dmrman CTLSTMT="RESTORE DATABASE ‘/dm8/data/DAMENG/dm.ini‘ FROM BACKUPSET ‘/dm8/backup/‘"
[dmdba@localhost bin]$./dmrman CTLSTMT="RECOVER DATABASE ‘/dm8/data/DAMENG/dm.ini‘ FROM BACKUPSET ‘/dm8/backup/‘"
[dmdba@localhost bin]$./dmrman CTLSTMT="RECOVER DATABASE ‘/dm8/data/DAMENG/dm.ini‘ UPDATE DB_MAGIC"
[root@localhost ~]# mkdir -p /dm8/arch
[dmdba@localhost backup]$ cd /dm8/data/DAMENG/
[dmdba@localhost DAMENG]$ ls
[dmdba@localhost DAMENG]$ vi dm.ini
dm.ini
----------
INSTANCE_NAME = GRP1_RT_01
PORT_NUM = 5236
DW_INACTIVE_INTERVAL = 60
ALTER_MODE_STATUS = 0
ENABLE_OFFLINE_TS = 2
MAL_INI = 1
ARCH_INI = 1
RLOG_SEND_APPLY_MON = 64
[dmdba@localhost DAMENG]$ vi dmmal.ini
dmmal.ini
---------
MAL_CHECK_INTERVAL = 5
MAL_CONN_FAIL_INTERVAL = 5
[MAL_INST1]
MAL_INST_NAME = GRP1_RT_01
MAL_HOST = 192.168.1.18
MAL_PORT = 55101
MAL_INST_HOST = 192.168.1.18
MAL_INST_PORT = 5236
MAL_DW_PORT = 65101
MAL_INST_DW_PORT = 45101
[MAL_INST2]
MAL_INST_NAME = GRP1_RT_02
MAL_HOST = 192.168.1.20
MAL_PORT = 55121
MAL_INST_HOST = 192.168.1.20
MAL_INST_PORT = 5236
MAL_DW_PORT = 65121
MAL_INST_DW_PORT = 45121
[dmdba@localhost DAMENG]$ vi dmarch.ini
dmarch.ini
----------
[ARCHIVE_REALTIME]
ARCH_TYPE = REALTIME
ARCH_DEST = GRP1_RT_02
[ARCHIVE_LOCAL1]
ARCH_TYPE = LOCAL
ARCH_DEST = /dm8/arch
ARCH_FILE_SIZE = 128
ARCH_SPACE_LIMIT = 0
[dmdba@localhost DAMENG]$ vi dmwatcher.ini
dmwatcher.ini
-------------
[GRP1]
DW_TYPE = GLOBAL
DW_MODE = AUTO
DW_ERROR_TIME = 10
INST_RECOVER_TIME = 60
INST_ERROR_TIME = 10
INST_OGUID = 453331
INST_INI = /dm8/data/DAMENG/dm.ini
INST_AUTO_RESTART = 1
INST_STARTUP_CMD = /dm8/bin/dmserver
RLOG_SEND_THRESHOLD = 0
RLOG_APPLY_THRESHOLD = 0
以 Mount 方式启动主库
[dmdba@localhost DAMENG]$ cd /dm8/bin
[dmdba@localhost bin]$./dmserver /dm8/data/DAMENG/dm.ini mount
另开一个窗口
[root@promote ~]# su dmdba
[dmdba@promote root]$cd /dm8/bin
[dmdba@promote bin]$./disql SYSDBA/Dameng123
SQL>SP_SET_PARA_VALUE(1, ‘ALTER_MODE_STATUS‘, 1);
SQL>sp_set_oguid(453331);
SQL>SP_SET_PARA_VALUE(1, ‘ALTER_MODE_STATUS‘, 0);
SQL>alter database primary;
SQL> exit
[dmdba@promote bin]$ ./disql SYSDBA/Dameng123
服务器[LOCALHOST:5236]:处于主库配置状态
登录使用时间: 3.887(毫秒)
standby(（备库配置））[root@localhost ~]# mkdir -p /dm8/arch
[dmdba@localhost backup]$ cd /dm8/data/DAMENG/
[dmdba@localhost DAMENG]$ ls
[dmdba@localhost DAMENG]$ vi dm.ini
dm.ini
----------
INSTANCE_NAME = GRP1_RT_02
PORT_NUM = 5236
DW_INACTIVE_INTERVAL = 60
ALTER_MODE_STATUS = 0
ENABLE_OFFLINE_TS = 2
MAL_INI = 1
ARCH_INI = 1
RLOG_SEND_APPLY_MON = 64
[dmdba@localhost DAMENG]$ vi dmmal.ini
dmmal.ini
--------
MAL_CHECK_INTERVAL = 5
MAL_CONN_FAIL_INTERVAL = 5
[MAL_INST1]
MAL_INST_NAME = GRP1_RT_01
MAL_HOST = 192.168.1.18
MAL_PORT = 55101
MAL_INST_HOST = 192.168.1.18
MAL_INST_PORT = 5236
MAL_DW_PORT = 65101
MAL_INST_DW_PORT = 45101
[MAL_INST2]
MAL_INST_NAME = GRP1_RT_02
MAL_HOST = 192.168.1.20
MAL_PORT = 55121
MAL_INST_HOST = 192.168.1.20
MAL_INST_PORT = 5236
MAL_DW_PORT = 65121
MAL_INST_DW_PORT = 45121
[dmdba@localhost DAMENG]$ vi dmarch.ini
dmarch.ini
-----------
[ARCHIVE_REALTIME]
ARCH_TYPE = REALTIME
ARCH_DEST = GRP1_RT_01
[ARCHIVE_LOCAL1]
ARCH_TYPE = LOCAL
ARCH_DEST = /dm8/arch
ARCH_FILE_SIZE = 128
ARCH_SPACE_LIMIT = 0
[dmdba@localhost DAMENG]$ vi dmwatcher.ini
dmwatcher.ini
--------------
[GRP1]
DW_TYPE = GLOBAL
DW_MODE = AUTO
DW_ERROR_TIME = 10
INST_RECOVER_TIME = 60
INST_ERROR_TIME = 10
INST_OGUID = 453331
INST_INI = /dm8/data/DAMENG/dm.ini
INST_AUTO_RESTART = 1
INST_STARTUP_CMD = /dm8/bin/dmserver
RLOG_APPLY_THRESHOLD = 0
以 Mount 方式启动备库
[dmdba@localhost DAMENG]$ cd /dm8/bin
[dmdba@localhost bin]./dmserver /dm8/data/DAMENG/dm.ini mount
开一个窗口
[root@localhost ~]# su dmdba
[dmdba@localhost root]$ cd /dm8/bin
[dmdba@localhost bin]$./disql SYSDBA/Dameng123
SQL>SP_SET_PARA_VALUE(1, ‘ALTER_MODE_STATUS‘, 1);
SQL>sp_set_oguid(453331);
SQL>alter database standby;
SQL>SP_SET_PARA_VALUE(1, ‘ALTER_MODE_STATUS‘, 0);
SQL> exit
[dmdba@localhost bin]$ ./disql SYSDBA/Dameng123
服务器[LOCALHOST:5236]:处于备库配置状态
登录使用时间: 3.887(毫秒)
启动主库守护进程（在主库中）:
[dmdba@localhost bin]$ ./dmwatcher /dm8/data/DAMENG/dmwatcher.ini
启动备库守护进程（在备库中）:
[dmdba@localhost bin]$ ./dmwatcher /dm8/data/DAMENG/dmwatcher.ini
监视器中
[root@localhost ~]# su dmdba[dmdba@localhost root]$ cd /dm8
[dmdba@localhost dm8]$ vi dmmonitor.ini
dmmonitor.ini （ 监视器配置、在dm8/下）
--------------
MON_DW_CONFIRM = 1
MON_LOG_PATH = /dm8/data/log
MON_LOG_INTERVAL = 60
MON_LOG_FILE_SIZE = 32
MON_LOG_SPACE_LIMIT = 0
[GRP1]
MON_INST_OGUID = 453331
MON_DW_IP = 192.168.1.18:65101
MON_DW_IP = 192.168.1.20:65121
启动监视器
[dmdba@promote bin]$ mkdir -p /dm8/data/log
[dmdba@localhost dm8]$ cd bin
[dmdba@localhost bin]$ ./dmmonitor /dm8/dmmonitor.ini
标签：步骤 limit des 协议 mount int database monitor server
原文地址：https://www.cnblogs.com/songyaru/p/14307404.html
