DMDSC实时数据守护搭建

1 前置条件

1. 服务器已安装2节点DSC集群
2. DSC节点服务器有root权限
3. DSC节点服务器防火墙已关闭或开放所有配置涉及端口
4. 备机已安装DM8并以DSC物理备份还原兼容模式初始化（主要是PAGE_SIZE、 BLANK_PAD_MODE、 CASE_SENSITIVE、 CHARSET/UNICODE_FLAG、 USE_NEW_HASH、 LENGTH_IN_CHAR、 PAGE_ENC_SLICE_SIZE、 ENCRYPT_NAME参数与DSC库一致）
5. 如需安装监视器，则另需一台安装DM8的服务器

2 安装环境

• 操作系统：CentOS Linux release 7.9.2009 x64
• 硬盘空间：20G
• 软件版本：DM8企业版
• 共享存储：30G（仅虚拟机测试）

2.1 服务器信息

IP地址	EP_SEQNO	EP_NAME	OGUID	安装目录	备注
192.168.11.131	0	DSC0	313239	/dmdb/data	DSC节点1
192.168.11.132	1	DSC1	313239	/dmdb/data	DSC节点2
192.168.11.139		DSCS	313239	/opt/dmdb/data/	单实例备机
192.168.11.133			313239		监视器

2.2 MAL通信

MAL_INST_NAME	MAL_HOST/ MAL_INST_HOST	MAL_PORT	MAL_INST_PORT	MAL_DW_PORT	MAL_INST_DW_PORT
DSC0	192.168.11.131	40131	5236	51131	61131
DSC1	192.168.11.132	40132	5236	51132	61132
DSCS	192.168.11.139	40139	5236	51139	61139

3 安装步骤

3.1 准备数据

物理备份DSC集群数据库

[dmdba@localhost ~]$ dmrman dcr_ini=/dmdb/data/dmdcr.ini use_ap=2 ctlstmt="backup database '/dmdb/data/dsc0_config/dm.ini' backupset '/opt/dmdb/dsc_bak'"

复制备份数据到实时备机139

[dmdba@localhost ~]$ scp -r /opt/dmdb/dsc_bak/ [email protected]:/opt/dmdb/

3.2 恢复备机

# 139备机
[dmdba@localhost ~]$ dmrman use_ap=2 ctlstmt="restore database '/opt/dmdb/data/DAMENG/dm.ini' from backupset '/opt/dmdb/dsc_bak'"
[dmdba@localhost ~]$ dmrman use_ap=2 ctlstmt="recover database '/opt/dmdb/data/DAMENG/dm.ini' from backupset '/opt/dmdb/dsc_bak'"
[dmdba@localhost ~]$ dmrman use_ap=2 ctlstmt="recover database '/opt/dmdb/data/DAMENG/dm.ini' update db_magic"

3.3 实例参数 - dm.ini

# 3个实例参数分别做以下参数修改
# 131节点
INSTANCE_NAME = DSC0
ALTER_MODE_STATUS = 0
ENABLE_OFFLINE_TS = 2
MAL_INI = 1
ARCH_INI = 1 

# 132节点
INSTANCE_NAME = DSC1
ALTER_MODE_STATUS = 0
ENABLE_OFFLINE_TS = 2
MAL_INI = 1
ARCH_INI = 1 

# 139节点
INSTANCE_NAME = DSCS
ALTER_MODE_STATUS = 0
ENABLE_OFFLINE_TS = 2
MAL_INI = 1
ARCH_INI = 1 

3.4 MAL通信 – dmmal.ini

# 3个节点实例完全一致

MAL_CHECK_INTERVAL = 5
MAL_CONN_FAIL_INTERVAL = 5 

[MAL_INST0]
MAL_INST_NAME = DSC0
MAL_HOST    = 192.168.11.131
MAL_PORT    = 40131
MAL_INST_HOST = 192.168.11.131
MAL_INST_PORT = 5236
MAL_DW_PORT = 51131
MAL_INST_DW_PORT = 61131 

[MAL_INST1]
MAL_INST_NAME = DSC1
MAL_HOST    = 192.168.11.132
MAL_PORT    = 40132
MAL_INST_HOST = 192.168.11.132
MAL_INST_PORT = 5236
MAL_DW_PORT = 51132
MAL_INST_DW_PORT = 61132 

[MAL_INST2]
MAL_INST_NAME = DSCS
MAL_HOST    = 192.168.11.139
MAL_PORT    = 40139
MAL_INST_HOST = 192.168.11.139
MAL_INST_PORT = 5236
MAL_DW_PORT = 51139
MAL_INST_DW_PORT = 61139

3.5 实时归档 – dmarch.ini

# 131节点
ARCH_LOCAL_SHARE = 1
[ARCHIVE_LOCAL1]
ARCH_TYPE = LOCAL
ARCH_DEST =+DMDATA/DSC0/arch
ARCH_FILE_SIZE = 128
ARCH_SPACE_LIMIT = 0 

[ARCH_REMOTE1]
ARCH_TYPE = REMOTE
ARCH_DEST = DSC1
ARCH_INCOMING_PATH =+DMDATA/DSC1/arch
ARCH_FILE_SIZE = 128
ARCH_SPACE_LIMIT = 0 

[ARCH_SLAVE]
ARCH_TYPE = REALTIME
ARCH_DEST = DSCS

################################################
# 132节点
ARCH_LOCAL_SHARE = 1
[ARCHIVE_LOCAL1]
ARCH_TYPE = LOCAL
ARCH_DEST =+DMDATA/DSC1/arch
ARCH_FILE_SIZE = 128
ARCH_SPACE_LIMIT = 0 

[ARCH_REMOTE1]
ARCH_TYPE = REMOTE
ARCH_DEST = DSC0
ARCH_INCOMING_PATH =+DMDATA/DSC0/arch
ARCH_FILE_SIZE = 128
ARCH_SPACE_LIMIT = 0 

[ARCH_SLAVE]
ARCH_TYPE = REALTIME
ARCH_DEST = DSCS 

################################################
# 139节点
[ARC_LOCAL1]
ARCH_TYPE = LOCAL
ARCH_DEST = /opt/dmdb/data/DAMENG/arch
ARCH_FILE_SIZE = 128
ARCH_SPACE_LIMIT = 0

[ARCH_SLAVE]
ARCH_TYPE = REALTIME
ARCH_DEST = DSC0/DSC1

3.6 配置守护 – dmwatcher.ini

# 131节点
cat > /dmdb/data/dsc0_config/dmwatcher.ini << EOF
[GRP_DSC]
DW_TYPE = GLOBAL
DW_MODE = MANUAL
DW_ERROR_TIME = 60
INST_RECOVER_TIME = 60
INST_ERROR_TIME = 30
INST_OGUID = 313239
INST_INI = /dmdb/data/dsc0_config/dm.ini
DCR_INI = /dmdb/data/dmdcr.ini
INST_AUTO_RESTART = 0
INST_STARTUP_CMD = /opt/dmdb/dmdbms/bin/dmserver
EOF 

# 132节点
cat > /dmdb/data/dsc1_config/dmwatcher.ini << EOF
[GRP_DSC]
DW_TYPE = GLOBAL
DW_MODE = MANUAL
DW_ERROR_TIME = 60
INST_RECOVER_TIME = 60
INST_ERROR_TIME = 30
INST_OGUID = 313239
INST_INI = /dmdb/data/dsc1_config/dm.ini
DCR_INI = /dmdb/data/dmdcr.ini
INST_AUTO_RESTART = 0
INST_STARTUP_CMD = /opt/dmdb/dmdbms/bin/dmserver
EOF

# 139节点
cat > /opt/dmdb/data/DAMENG/dmwatcher.ini << EOF
[GRP_DSC]
DW_TYPE = GLOBAL
DW_MODE = MANUAL
DW_ERROR_TIME = 60
INST_RECOVER_TIME = 60
INST_ERROR_TIME = 30
INST_OGUID = 313239
INST_INI = /opt/dmdb/data/DAMENG/dm.ini
INST_AUTO_RESTART = 0
INST_STARTUP_CMD = /opt/dmdb/dmdbms/bin/dmserver
EOF

3.7 重启CSS和ASM服务

# 131节点
[dmdba@localhost ~]$ killall dmcss dmasmsvr
[dmdba@localhost ~]$ /opt/dmdb/dmdbms/bin/dmcss DCR_INI=/dmdb/data/dmdcr.ini
[dmdba@localhost ~]$ /opt/dmdb/dmdbms/bin/dmasmsvr DCR_INI=/dmdb/data/dmdcr.ini

# 132节点
[dmdba@localhost ~]$ killall dmcss dmasmsvr
[dmdba@localhost ~]$ /opt/dmdb/dmdbms/bin/dmcss DCR_INI=/dmdb/data/dmdcr.ini
[dmdba@localhost ~]$ /opt/dmdb/dmdbms/bin/dmasmsvr DCR_INI=/dmdb/data/dmdcr.ini

3.8 mount启动所有实例

# 131节点
[dmdba@localhost ~]$ dmserver /dmdb/data/dsc0_config/dm.ini mount
# 132节点
[dmdba@localhost ~]$ dmserver /dmdb/data/dsc1_config/dm.ini mount
# 139节点
[dmdba@localhost ~]$ dmserver /opt/dmdb/data/DAMENG/dm.ini mount

将生成的另一节点配置文件目录dsc1_config复制到132节点对应目录

[dmdba@localhost ~]$ scp -r /dmdb/data/dsc1_config/ [email protected]:/dmdb/data/

3.9 设置库模式、OGUID

# 131或者132节点
[dmdba@localhost ~]$ disql SYSDBA/SYSDBA@localhost:5236

SP_SET_PARA_VALUE(1, 'ALTER_MODE_STATUS', 1);
SP_SET_OGUID(313239);
ALTER DATABASE PRIMARY;
SP_SET_PARA_VALUE(1, 'ALTER_MODE_STATUS', 0) 

# 139节点
[dmdba@localhost ~]$ disql SYSDBA/SYSDBA@localhost:5236 

SP_SET_PARA_VALUE(1, 'ALTER_MODE_STATUS', 1);
SP_SET_OGUID(313239); 
ALTER DATABASE STANDBY; 
SP_SET_PARA_VALUE(1, 'ALTER_MODE_STATUS', 0)

3.10 启动守护服务

# 131节点
[dmdba@localhost ~]$ dmwatcher /dmdb/data/dsc0_config/dmwatcher.ini
# 132节点
[dmdba@localhost ~]$ dmwatcher /dmdb/data/dsc1_config/dmwatcher.ini
# 139节点
[dmdba@localhost ~]$ dmwatcher /opt/dmdb/data/DAMENG/dmwatcher.ini

3.11 监视器配置 – dmmonitor.ini

# 133节点
[dmdba@localhost ~]$ cat > /opt/dmdb/data/DAMENG/dmmonitor.ini << EOF
MON_DW_CONFIRM = 1
MON_LOG_PATH = /opt/dmdb/data/DAMENG/log/monitor
MON_LOG_INTERVAL = 60
MON_LOG_FILE_SIZE = 32
MON_LOG_SPACE_LIMIT = 0 

[GRP_DSC]
MON_INST_OGUID = 313239
MON_DW_IP = 192.168.11.131:51131/192.168.11.132:51132
MON_DW_IP = 192.168.11.132:51139
EOF

# 启动监视器
[dmdba@localhost ~]$ dmmonitor /opt/dmdb/data/DAMENG/dmmonitor.ini

4 功能测试

4.1 数据同步

# 任选一个DSC节点登陆（这里选择131节点）
[dmdba@localhost ~]$ disql SYSDBA/[email protected] 

服务器[192.168.11.131:5236]:处于普通打开状态
登录使用时间 : 10.638(ms)

disql V8

SQL> create user test IDENTIFIED BY testuserpwd;
SQL> create table test.tb_test (username VARCHAR(50) );
SQL> insert into test.tb_test(username)values('jc');
SQL> commit;
SQL> select * from test.tb_test; 

行号   USERNAME
---------- --------
1     jc

# 登陆139备库
[dmdba@localhost ~]$ disql SYSDBA/[email protected]

服务器[192.168.11.139:5236]:处于备库打开状态
登录使用时间 : 7.984(ms)

disql V8

SQL> select * from test.tb_test; 

行号   USERNAME
---------- --------
1     jc

已用时间: 4.226(毫秒). 执行号:300.

SQL>

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