达梦DSC部署

1. DSC描述

DMDSC集群是一个多实例、单数据库的系统。多个数据库实例可以同时访问、修改同一个数据库的数据。数据文件、控制文件在集群系统中只有一份，不论有几个节点，这些节点都平等地使用这些文件，这些文件保存在共享存储上。每个节点有自己独立的联机日志和归档日志，其中联机日志保存在共享存储上，归档日志可以保存在本地存储上也可以保存在共享存储上。

总体架构：

2. 环境规划准备

2.1. IP规划

主机名	私有IP	公用IP	实例名	节点用途
testDB01	192.168.1.137	10.79.180.37	DSC0	DSC节点1
testDB02	192.168.1.138	10.79.180.38	DSC1	DSC节点2

2.2. 端口规划

实例名	实例端	MAL系统端	CSS端	ASM端	ASM的MAL端	DCR检查实例端口	守护进程端口	实例对守护进程监听端口
DSC1	5236	9236	9341	9349	9340	9741	3567	4567
DSC2	5236	9236	9343	9351	9341	9741	3567	4567

2.3. 存储规划

查看磁盘大小：

blockdev --getsize64 /dev/dm/asmdiskdcr

磁盘	裸设备名/用途
/dev/dm/asmdiskdcr  (200M)	/dev/dm/asmdiskdcr (DCR磁盘)
/dev/dm/asmdiskvote (200M)	/dev/dm/asmdiskvote (vote磁盘)
/dev/dm/asmdiskredo (10G)	/dev/dm/asmdiskredo (redo日志磁盘)
/dev/dm/asmdiskdata1 (20G)	/dev/dm/asmdiskdata1(数据磁盘)
/dev/dm/asmdiskdata2 (20G)	/dev/dm/asmdiskdata2(数据磁盘)

3. 服务器配置

3.1. 配置打开文件数：

vim /etc/security/limits.conf

dmdba soft nice 0

dmdba hard nice 0

dmdba soft as unlimited

dmdba hard as unlimited

dmdba soft fsize unlimited

dmdba hard fsize unlimited

dmdba soft nproc 131072

dmdba hard nproc 131072

dmdba soft nofile 131072

dmdba hard nofile 131072

dmdba soft core unlimited

dmdba hard core unlimited

dmdba soft data unlimited

dmdba hard data unlimited

dmdba soft memlock unlimited #数据库创建线程失败时的解决方案

dmdba hard memlock unlimited #数据库创建线程失败时的解决方案

3.2. 配置IO调度

磁盘IO调度算法建议设置为deadline，不需要配置。

[root@testDB01 mnt]# cat /sys/block/dm-11/queue/scheduler

noop [deadline] cfq

[root@testDB01 mnt]# cat /sys/block/dm-12/queue/scheduler

noop [deadline] cfq

[root@testDB01 mnt]# cat /sys/block/dm-2/queue/scheduler

noop [deadline] cfq

[root@testDB01 mnt]# cat /sys/block/dm-9/queue/scheduler

noop [deadline] cfq

[root@testDB01 mnt]# cat /sys/block/dm-6/queue/scheduler

noop [deadline] cfq

[root@testDB01 mnt]#

--设备方法

echo deadline > /sys/block/dm-11/queue/scheduler

3.3. 关闭selinux

vim /etc/sysconfig/selinux 

SELINUX=disabled

3.4. 关闭防火墙firewalld

[root@testDB01 ~]# systemctl stop firewalld

[root@testDB01 ~]# systemctl disable firewalld

3.5. 创建用户

建议使用dmdba用户安装数据库软件

[root@testDB01 home]# groupadd -g 12349 dinstall

[root@testDB01 home]# useradd -u 12345 -g dinstall -m -d /home/dmdba -s /bin/bash  dmdba

[root@testDB01 home]# passwd dmdba

3.6. 配置环境变量

编辑dmdba用户的环境变量（.bash_profile）文件

export LD_LIBRARY_PATH="$LD_LIBRARY_PATH:/opt/dmdba/dmdbms/bin"

export DM_HOME="/opt/dmdba/dmdbms"

export PATH=.:$DM_HOME/bin/:$PATH

4. 部署步骤

4.1. 软件安装（所有节点执行）

4.1.1. 挂载软件ISO镜像

[root@testDB02 ~]# mkdir /dm8

[root@testDB02 ~]# mount /opt/dm8_soft/dm          

[root@testDB02 ~]# mount /opt/dm8_soft/dm8_***********.iso /dm8

mount: /dm8: WARNING: source write-protected, mounted read-only.

[root@testDB02 ~]#

4.1.2. 命令行安装（-i参数）  

使用dmdba用户安装。软件安装过程如下：

[dmdba@testDB01 dm8]$ ./DMInstall.bin -i

请选择安装语言(C/c:中文 E/e:英文) [C/c]:e

Extract install files.........

core file size          (blocks, -c) unlimited

data seg size           (kbytes, -d) unlimited

scheduling priority             (-e) 0

file size               (blocks, -f) unlimited

pending signals                 (-i) 2088142

max locked memory       (kbytes, -l) 64

max memory size         (kbytes, -m) unlimited

open files                      (-n) 1024

pipe size            (512 bytes, -p) 8

POSIX message queues     (bytes, -q) 819200

real-time priority              (-r) 0

stack size              (kbytes, -s) 8192

cpu time               (seconds, -t) unlimited

max user processes              (-u) 2088142

virtual memory          (kbytes, -v) unlimited

file locks                      (-x) unlimited

The max number of open files is too little, suggest to set 65536 or more to number of open files.

Welcome to DM DBMS Installer

Whether to input the path of Key File? (Y/y:Yes N/n:No) [Y/y]:y

Please Input the Path of the Key File [dm.key]:/opt/dm8_soft/dm7E041213.key

/tmp/DMInstall/install/install.sh:行234: 警告：命令替换：忽略输入中的 null 字节

Expiration Date: 2021-12-25

Server Series: Enterprise Version

Server Type: Trial Version

Customer Name: 达梦公司产品试用

Authorized User Number: unlimited

Concurrency User Number: unlimited

Whether to Set The TimeZone? (Y/y:Yes N/n:No) [Y/y]:y

TimeZone:

[ 1]: GTM-12=West Date Line

[ 2]: GTM-11=Samoa

[ 3]: GTM-10=Hawaii

[ 4]: GTM-09=Alaska

[ 5]: GTM-08=Pacific(America and Canada)

[ 6]: GTM-07=Arizona

[ 7]: GTM-06=Central(America and Canada)

[ 8]: GTM-05=East(America and Canada)

[ 9]: GTM-04=Atlantic(America and Canada)

[10]: GTM-03=Brasilia

[11]: GTM-02=Middle Atlantic

[12]: GTM-01=Azores

[13]: GTM=Greenwich Mean Time

[14]: GTM+01=Sarajevo

[15]: GTM+02=Cairo

[16]: GTM+03=Moscow

[17]: GTM+04=AbuDhabi

[18]: GTM+05=Islamabad

[19]: GTM+06=Dakar

[20]: GTM+07=BangKok,Hanoi

[21]: GTM+08=China

[22]: GTM+09=Seoul

[23]: GTM+10=Guam

[24]: GTM+11=Solomon

[25]: GTM+12=Fiji

[26]: GTM+13=Nukualofa

[27]: GTM+14=Kiribati

Please Select the TimeZone [21]:21

Installation Type:

1 Typical

2 Server

3 Client

4 Custom

Please Input the number of the Installation Type [1 Typical]:1

Require Space: 1094M

Please Input the install path [/home/dmdba/dmdbms]:/opt/dmdba/dmdbms

No write permission!

Please Input the install path [/home/dmdba/dmdbms]:/opt/dmdba/dmdbms

Available Space:49200M

Please Confirm the install path(/opt/dmdba/dmdbms)? (Y/y:Yes N/n:No) [Y/y]:y

Pre-Installation Summary

Installation Location: /opt/dmdba/dmdbms

Require Space: 1094M

Available Space: 49200M

Version Information: Enterprise Version

Expire Date: 2021-12-25

Installation Type: Typical

Confirm to Install? (Y/y:Yes N/n:No):y

2021-07-19 10:16:45

[INFO] Installing DM DBMS...

2021-07-19 10:16:46

[INFO] Installing BASE Module...

2021-07-19 10:16:47

[INFO] Installing SERVER Module...

2021-07-19 10:16:47

[INFO] Installing CLIENT Module...

2021-07-19 10:16:48

[INFO] Installing DRIVERS Module...

2021-07-19 10:16:48

[INFO] Installing MANUAL Module...

2021-07-19 10:16:48

[INFO] Installing SERVICE Module...

2021-07-19 10:16:49

[INFO] Move log file to log directory.

2021-07-19 10:16:49

[INFO] Installed DM DBMS completely.

Please execute the commands by root:

/opt/dmdba/dmdbms/script/root/root_installer.sh

End

4.1.3. 使用Root注册DmAPService服务：  

[root@testDB01 ~]#  /opt/dmdba/dmdbms/script/root/root_installer.sh

Move /opt/dmdba/dmdbms/bin/dm_svc.conf to /etc

Modify the files' mode of DM Server

Create the DmAPService service

Created symlink /etc/systemd/system/multi-user.target.wants/DmAPService.service → /usr/lib/systemd/system/DmAPService.service.

Finished to create the service (DmAPService)

Start the DmAPService service

[root@testDB01 ~]#

4.2. 裸设备配置（所有节点）

4.2.1. udev 方式绑定裸设备

通过udev绑定存储与raw关系：

vim /etc/udev/rules.d/90-raw.rules

ACTION=="add|change", ENV{DM_UUID}=="mpath-36a4bdc4100cdf55d02bda34100000004", SYMLINK+="dm/asmdiskdcr", GROUP="dinstall", OWNER="dmdba", MODE="0660"

ACTION=="add|change", ENV{DM_UUID}=="mpath-36a4bdc4100cdf55d02bdb4c100000005", SYMLINK+="dm/asmdiskvote", GROUP="dinstall", OWNER="dmdba", MODE="0660"

ACTION=="add|change", ENV{DM_UUID}=="mpath-36a4bdc4100cdf55d02be0bad00000008", SYMLINK+="dm/asmdiskredo", GROUP="dinstall", OWNER="dmdba", MODE="0660"

ACTION=="add|change", ENV{DM_UUID}=="mpath-36a4bdc4100cdf55d02be489f0000000b", SYMLINK+="dm/asmdiskdata1", GROUP="dinstall", OWNER="dmdba", MODE="0660"

ACTION=="add|change", ENV{DM_UUID}=="mpath-36a4bdc4100cdf55d02be375f0000000a", SYMLINK+="dm/asmdiskdata2", GROUP="dinstall", OWNER="dmdba", MODE="0660

重新加载raw配置。

[root@testDB02 ~]# /sbin/udevadm control --reload

[root@testDB02 ~]# /sbin/udevadm trigger --type=devices --action=change

检查是否生效（所有节点都要检查）：

[root@testDB02 ~]# ll /dev/dm/

总用量 0

lrwxrwxrwx 1 root root 8  7月 21 11:14 asmdiskdata2 -> ../dm-11

lrwxrwxrwx 1 root root 8  7月 21 11:14 asmdiskdata1 -> ../dm-12

lrwxrwxrwx 1 root root 7  7月 21 11:14 asmdiskdcr -> ../dm-2

lrwxrwxrwx 1 root root 7  7月 21 11:14 asmdiskredo -> ../dm-9

lrwxrwxrwx 1 root root 7  7月 21 11:14 asmdiskvote -> ../dm-6

4.3. DSC部署

4.3.1. DMASM磁盘配置

4.3.1.1. 创建ASM磁盘（某个节点执行即可）

在dmdba用户下执行：./dmasmcmd

ASM>create dcrdisk '/dev/dm/asmdiskdcr' 'dcr'

[Trace]The ASM initialize dcrdisk /dev/dm/asmdiskdcr to name DMASMdcr

Used time: 9.151(ms).

ASM>create votedisk '/dev/dm/asmdiskvote' 'vote'

[Trace]The ASM initialize votedisk /dev/dm/asmdiskvote to name DMASMvote

Used time: 8.974(ms).

ASM>create asmdisk '/dev/dm/asmdiskredo' 'LOG0'

[Trace]The ASM initialize asmdisk /dev/dm/asmdiskredo to name DMASMDATA0

Used time: 4.454(ms).

ASM>create asmdisk '/dev/dm/asmdiskdata1' 'DATA0'

[Trace]The ASM initialize asmdisk /dev/dm/asmdiskdata1 to name DMASMDATA0

Used time: 4.454(ms).

ASM>create asmdisk '/dev/dm/asmdiskdata2' 'DATA_2'

[Trace]The ASM initialize asmdisk /dev/dm/asmdiskdata2 to name DMASMDATA_2

Used time: 4.454(ms).

检查ASM是否创建成功

ASM>listdisks '/dev/dm'

[/dev/dm/asmdiskdata1]: unused ASM disk, name:[DMASMDATA0], size:[2097151M]

[/dev/dm/asmdiskdata2]: unused ASM disk, name:[DMASMDATA_2], size:[2097151M]

[/dev/dm/asmdiskredo]: unused ASM disk, name:[DMASMLOG0], size:[51199M]

[/dev/dm/asmdiskvote]: used ASM disk, name:[DMASMvote], size:[1023M], group_id:[0], disk_id:[0]

[/dev/dm/asmdiskdcr]: used ASM disk, name:[DMASMdcr], size:[1023M], group_id:[0], disk_id:[0]

Used time: 1.051(ms).

4.3.1.2. 配置ASM磁盘（某个节点执行即可）

创建初始化配置目录：

[dmdba@testDB01bin]$ mkdir -p /opt/dmdba/config

配置dmdcr_cfg.ini

DCR_N_GRP = 3

DCR_VTD_PATH = /dev/dm/asmdiskvote

DCR_OGUID = 63635

[GRP]

DCR_GRP_TYPE = CSS

DCR_GRP_NAME = GRP_CSS

DCR_GRP_N_EP = 2

DCR_GRP_DSKCHK_CNT = 60

[GRP_CSS]

DCR_EP_NAME = CSS0

DCR_EP_HOST = 192.168.1.137

DCR_EP_PORT = 9341

[GRP_CSS]

DCR_EP_NAME = CSS1

DCR_EP_HOST = 192.168.1.138

DCR_EP_PORT = 9343

[GRP]

DCR_GRP_TYPE = ASM

DCR_GRP_NAME = GRP_ASM

DCR_GRP_N_EP = 2

DCR_GRP_DSKCHK_CNT = 60

[GRP_ASM]

DCR_EP_NAME = ASM0

DCR_EP_SHM_KEY = 93360

DCR_EP_SHM_SIZE = 10

DCR_EP_HOST = 192.168.1.137

DCR_EP_PORT = 9349

DCR_EP_ASM_LOAD_PATH = /dev/dm

[GRP_ASM]

DCR_EP_NAME = ASM1

DCR_EP_SHM_KEY = 93361

DCR_EP_SHM_SIZE = 10

DCR_EP_HOST = 192.168.1.138

DCR_EP_PORT = 9351

DCR_EP_ASM_LOAD_PATH = /dev/dm

[GRP]

DCR_GRP_TYPE = DB

DCR_GRP_NAME = GRP_DSC

DCR_GRP_N_EP = 2

DCR_GRP_DSKCHK_CNT = 60

[GRP_DSC]

DCR_EP_NAME = DSC0

DCR_EP_SEQNO = 0

DCR_EP_PORT = 5236

DCR_CHECK_PORT = 9741

[GRP_DSC]

DCR_EP_NAME = DSC1

DCR_EP_SEQNO = 1

DCR_EP_PORT = 5236

DCR_CHECK_PORT = 9742

初始化ASM磁盘组：

[dmdba@testDB01 bin]$ ./dmasmcmd

DMASMCMD V8

ASM>init dcrdisk '/dev/dm/asmdiskdcr' from '/opt/dmdba/config/dmdcr_cfg.ini' identified by 'abcd'

[Trace]DG 126 allocate 4 extents for file 0xfe000002.

Used time: 75.959(ms).

ASM>init votedisk '/dev/dm/asmdiskvote' from '/opt/dmdba/config/dmdcr_cfg.ini'

[Trace]DG 125 allocate 4 extents for file 0xfd000002.

Used time: 23.757(ms).

ASM>

4.3.2. 配置dmasvrmal.ini（所有节点）

所有DSC节点完全一致

[MAL_INST1]

 MAL_INST_NAME = ASM0

 MAL_HOST = 192.168.1.137

 MAL_PORT = 7236

[MAL_INST2]

 MAL_INST_NAME = ASM1

 MAL_HOST = 192.168.1.138

 MAL_PORT = 7237

4.3.3. 配置dmdcr.ini（所有节点）

配置dcr文件：

DMDCR_PATH = /dev/dm/asmdiskdcr

DMDCR_MAL_PATH =/opt/dmdba/config/dmasvrmal.ini #dmasmsvr 使用的 MAL 配置文件路径

DMDCR_SEQNO = 0   #每个节点的seqno不同（0，1，2）

#ASM 重启参数，命令行方式启动

DMDCR_ASM_RESTART_INTERVAL = 60 #（若为1，则为自动拉起dmasmsvr服务，只启动dmcss，等待拉起dmasmsvr即可）

DMDCR_ASM_STARTUP_CMD = /opt/dmdba/dmdbms/bin/dmasmsvr dcr_ini=/opt/dmdba/config/dmdcr.ini

#DB 重启参数，命令行方式启动

DMDCR_DB_RESTART_INTERVAL = 60 #（若为1，则为自动拉起dmserver服务，只启动dmcss，等待拉起dmserver即可）

DMDCR_DB_STARTUP_CMD = /opt/dmdba/dmdbms/bin/dmserver path=/opt/dmdba/config/data/dsc0_config/dm.ini   dcr_ini=/opt/dmdba/config/dmdcr.ini

启动dmcss，验证dcr配置文件是否正确：

[dmdba@testDB01 bin]# ./dmcss DCR_INI=/opt/dmdba/config/dmdcr.ini

DMCSS V8.1.0.147-Build(2019.03.27-104581)ENT

DMCSS IS READY

[CSS]: 设置EP CSS0[0]为控制节点

[ASM]: 设置EP ASM0[0]为控制节点

[ASM]: 设置命令[START NOTIFY], 目标站点 ASM0[0], 命令序号[2]

[ASM]: 设置命令[EP START], 目标站点 ASM0[0], 命令序号[3]

[ASM]: 设置命令[NONE], 目标站点 ASM0[0], 命令序号[0]

启动dmasmsrv

[dmdba@testDB01 bin]# ./dmasmsvr DCR_INI=/opt/dmdba/config/dmdcr.ini

ASM SELF EPNO:0

DMASMSVR V8.1.0.147-Build(2019.03.27-104581)ENT

dmasmsvr task worker thread startup

the ASM server is Ready.

check css cmd: START NOTIFY, cmd_seq: 2

check css cmd: EP START, cmd_seq: 3

ASM Control Node EPNO:0

check css cmd: EP OPEN, cmd_seq: 8

4.3.4. 创建磁盘组（某个节点执行即可）

[dmdba@testDB01 bin]# ./dmasmtool DCR_INI=/opt/dmdba/config/dmdcr.ini

DMASMTOOL V8.1.0.147-Build(2019.03.27-104581)ENT

ASM>create diskgroup 'DMLOG' asmdisk '/dev/dm/asmdiskredo'

Used time: 765.229(ms).

ASM>create diskgroup 'DMDATA' asmdisk '/dev/dm/asmdiskdata1'

Used time: 727.360(ms).

ASM>create diskgroup 'DMBAK' asmdisk '/dev/dm/asmdiskdata2'

4.3.5. 配置dminit.ini（某个节点执行即可）

实例初始化配置文件：

db_name = dsc

system_path = +DMDATA/data

system = +DMDATA/data/dsc/system.dbf

system_size = 128

roll = +DMDATA/data/dsc/roll.dbf

roll_size = 128

main = +DMDATA/data/dsc/main.dbf

main_size = 128

ctl_path = +DMDATA/data/dsc/dm.ctl

ctl_size = 8

log_size = 256

dcr_path = /dev/dm/asmdiskdcr #dcr 磁盘路径，目前不支持 asm，只能是裸设备

dcr_seqno = 0

auto_overwrite = 1

CHARSET=1

PAGE_SIZE=32

LENGTH_IN_CHAR=0

LOG_SIZE=2048

[DSC0] #inst_name 跟 dmdcr_cfg.ini 中 DB 类型 group 中 DCR_EP_NAME 对应

config_path = /opt/dmdba/config/data/dsc0_config

port_num = 5236

mal_host = 192.168.1.137

mal_port = 9340

log_path = +DMLOG/log/dsc0_log01.log

log_path = +DMLOG/log/dsc0_log02.log

[DSC1] #inst_name 跟 dmdcr_cfg.ini 中 DB 类型 group 中 DCR_EP_NAME 对应

config_path = /opt/dmdba/config/data/dsc1_config

port_num = 5236

mal_host = 192.168.1.138

mal_port = 9341

log_path = +DMLOG/log/dsc1_log01.log

log_path = +DMLOG/log/dsc1_log02.log

4.3.6. 初始化数据库（某个节点执行即可）

[dmdba@testDB01bin]# ./dminit control=/opt/dmdba/config/dminit.ini

initdb V8.1.0.147-Build(2019.03.27-104581)ENT

db version: 0x7000a

file dm.key not found, use default license!

License will expire in 14 day(s) on 2021-07-15

 log file path: +DMLOG/log/dsc0_log01.log

 log file path: +DMLOG/log/dsc0_log02.log

 log file path: +DMLOG/log/dsc1_log01.log

 log file path: +DMLOG/log/dsc1_log02.log

write to dir [+DMDATA/data/dsc].

create dm database success. 2021-07-01 20:05:45

4.3.7. 拷贝配置文件到远程节点

把dsc1_config的配置文件拷贝到远程节点相对应的目录下

比如：testDB02：/opt/dmdba/config/data/dsc1_config

4.3.8. 启动数据库实例

如果DM CSS 配置有自动拉起 dmserver 的功能，可以等待 DM CSS 自动拉起实例，不需要手动启动asm和dmserver。

如果需要手动启动，可参考下面的操作步骤：

1、启动css

/opt/dmdba/dmdbms/bin/dmcss DCR_INI=/opt/dmdba/config/dmdcr.ini

2、启动asm

/opt/dmdba/dmdbms/bin/dmasmsvr DCR_INI=/opt/dmdba/config/dmdcr.ini

3、启动instance

--节点1

[dmdba@testDB01 bin]$ ./dmserver /opt/dmdba/config/data/dsc0_config/dm.ini dcr_ini=/opt/dmdba/config/dmdcr.ini

--节点2

[dmdba@testDB02 bin]$ ./dmserver /opt/dmdba/config/data/dsc1_config/dm.ini dcr_ini=/opt/dmdba/config/dmdcr.ini

4.3.9. DMCSSM监视器（任意一个节点）

配置监视器配置文件dmcssm.ini

#和 dmdcr_cfg.ini 中的 DCR_OGUID 保持一致

CSSM_OGUID = 63635

#配置所有 CSS 的连接信息，

#和 dmdcr_cfg.ini 中 CSS 配置项的 DCR_EP_HOST 和 DCR_EP_PORT 保持一致

CSSM_CSS_IP = 192.168.1.137:9341

CSSM_CSS_IP = 192.168.1.138:9343

CSSM_LOG_PATH =/opt/dmdba/dmdbms/data/logs#监视器日志文件存放路径

CSSM_LOG_FILE_SIZE = 32 #每个日志文件最大 32M

CSSM_LOG_SPACE_LIMIT = 0 #不限定日志文件总占用空间

启动

[root@testDB01bin]# ./dmcssm ini_path=/opt/dmdba/config/dmcssm.ini

至此DSC部署完成。

5. 使用root注册OS服务（所有节点）

1、ASM、dmserver服务是由CSS自动拉起，只需要注册css服务和守护进程服务即可。

2、守护进程依赖dmserver服务启动，当服务器重启后需要手动启动守护进程。

服务器名	服务名	备注	服务启动/关闭
testDB01	Css服务	[root@testDB01 root]# ./dm_service_installer.sh -t dmcss -p dmcss0 -dcr_ini /opt/dmdba/config/dmdcr.ini	/opt/dmdba/dmdbms/bin/DmCSSServicedmcss0 start|stop|status
testDB01	asm服务	[root@testDB01 root]# ./dm_service_installer.sh -t dmasmsvr -p Asm0 -dcr_ini /opt/dmdba/config/dmdcr.ini -y DmCSSServicedmcss0 Created symlink /etc/systemd/system/multi-user.target.wants/DmASMSvrServiceAsm0.service → /usr/lib/systemd/system/DmASMSvrServiceAsm0.service. Finished to create the service (DmASMSvrServiceAsm0)	/opt/dmdba/dmdbms/bin/DmASMSvrServiceAsm0 start|stop|status
testDB01	数据库实例	[root@testDB01 root]# ./dm_service_installer.sh -t dmserver -p dsc0 -dm_ini /opt/dmdba/config/data/dsc0_config/dm.ini -dcr_ini /opt/dmdba/config/dmdcr.ini -y DmASMSvrServiceAsm0 Created symlink /etc/systemd/system/multi-user.target.wants/DmServicedsc0.service → /usr/lib/systemd/system/DmServicedsc0.service. Finished to create the service (DmServicedsc0)	/opt/dmdba/dmdbms/bin/DmServicedsc0 start|stop|status
testDB02	Css服务	[root@testDB02 root]#  ./dm_service_installer.sh -t dmcss -p dmcss1 -dcr_ini   /opt/dmdba/config/dmdcr.ini	/opt/dmdba/dmdbms/bin/DmCSSServicedmcss1 start|stop|status
testDB02	asm服务	[root@testDB02 root]# ./dm_service_installer.sh -t dmasmsvr -p Asm1 -dcr_ini /opt/dmdba/config/dmdcr.ini -y DmCSSServicedmcss1 Created symlink /etc/systemd/system/multi-user.target.wants/DmASMSvrServiceAsm1.service → /usr/lib/systemd/system/DmASMSvrServiceAsm1.service. Finished to create the service (DmASMSvrServiceAsm1)	/opt/dmdba/dmdbms/bin/DmASMSvrServiceAsm1 start|stop|status
testDB02	数据库实例	[root@testDB02 root]# ./dm_service_installer.sh -t dmserver -p dsc1 -dm_ini /opt/dmdba/config/data/dsc1_config/dm.ini -dcr_ini /opt/dmdba/config/dmdcr.ini -y DmASMSvrServiceAsm1 Created symlink /etc/systemd/system/multi-user.target.wants/DmServicedsc1.service → /usr/lib/systemd/system/DmServicedsc1.service. Finished to create the service (DmServicedsc1)	/opt/dmdba/dmdbms/bin/DmServicedsc1 start|stop|status

注册完CSS、ASM、DB服务后，禁用ASM、DB服务随机启动。

[root@testDB02 ~]# systemctl disable DmServicedsc1.service

[root@testDB02 ~]# systemctl disable DmASMSvrServiceAsm1.service

[root@testDB02 ~]# systemctl list-unit-files |grep Dm

DmAPService.service                        enabled        

DmASMSvrServiceAsm1.service                disabled       

DmCSSServicedmcss1.service                 enabled        

DmServicedsc1.service                      disabled

6. 高可用配置

Vim /etc/dm_svc.conf配置。

只需在客户端置即可。

# 以#开头的行表示是注释

# 全局配置区

DMDSC=(10.79.180.37:5236,10.79.180.38:5236)

TIME_ZONE=(+480) #表示+8:00 时区

LOGIN_ENCRYPT=(0)

DIRECT=(Y)

# 服务配置区

[DMDSC]

CLUSTER=(DSC) #表示集群为DSC集群

EP_SELECTOR=(0) #表示第一节点正常时只连第一个节点

AUTO_RECONNECT=(1)#第一个节点故障恢复后自动重连第一个节点

SWITCH_TIME=(30) #在服务器之间切换的次数

SWITCH_INTERVAL=(200) #在服务器之间切换的时间间隔，单位为毫秒

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