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G025-db-gs-ins-02 openeuler deployment opengauss (1 active and 1 standby)

2022-07-25 01:13:00 【51CTO】

1 You need to understand

  • For the specific version of the database and operating system, please refer to the blog  G024 Single instance
  • Please finish ahead of time 2 platform openEuler install , use minimal Minimize installation , Please refer to the blog for details  G015 Euler Linux install
  • This article believes that you have the ability to build single instances , Otherwise, please refer to the following related articles G024 Complete single instance setup
  • Title with Primary and secondary nodes word , It means that this step should be operated on both the primary node and the standby node
  • For a better browsing experience , You can click the directory button at the top left of the article to display the overall directory structure of the article

2 Environmental planning

Host name IP Address role
cloudcsp192.168.200.174Primary Main library
cloudcss192.168.200.175Standby For the library

3 System environment configuration （ Primary and secondary nodes ）

3.1 IP And the host name 

#  Master node 
[[email protected] ~]# echo '192.168.200.174 cloudcsp' >> /etc/hosts
[[email protected] ~]# echo '192.168.200.175 cloudcss' >> /etc/hosts

[[email protected] ~]# cat /etc/hosts
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
192.168.200.174 cloudcsp
192.168.200.175 cloudcss


#  For the node 
[[email protected] ~]# echo '192.168.200.175 cloudcss' >> /etc/hosts
[[email protected] ~]# echo '192.168.200.174 cloudcsp' >> /etc/hosts

[[email protected] ~]# cat /etc/hosts
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
192.168.200.175 cloudcss
192.168.200.174 cloudcsp


     
    
      
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3.2 Turn off firewall 

#  Master node 
[[email protected] ~]# systemctl stop firewalld
[[email protected] ~]# systemctl disable firewalld

#  For the node 
[[email protected] ~]# systemctl stop firewalld
[[email protected] ~]# systemctl disable firewalld

     
    
      
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3.3 Set the character set and other environment variables 

#  Master node 
[[email protected] ~]# vi /etc/profile
[[email protected] ~]# cat /etc/profile |grep export |tail -n 3
export LANG=en_US.UTF-8
export packagePath=/opt/software/openGauss
export LD_LIBRARY_PATH=$packagePath/script/gspylib/clib:$LD_LIBRARY_PATH

[[email protected] ~]# source /etc/profile

#  For the node 
[[email protected] ~]# vi /etc/profile
[[email protected] ~]# cat /etc/profile |grep export |tail -n 3
export LANG=en_US.UTF-8
export packagePath=/opt/software/openGauss
export LD_LIBRARY_PATH=$packagePath/script/gspylib/clib:$LD_LIBRARY_PATH

[[email protected] ~]# source /etc/profile

     
    
      
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3.4 Cancel the memory limit parameter 

#  Master node 
[[email protected] ~]# vi /etc/profile.d/performance.sh
[[email protected] ~]# cat /etc/profile.d/performance.sh

#sysctl -w vm.min_free_kbytes=112640 &> /dev/null
sysctl -w vm.dirty_ratio=60 &> /dev/null
sysctl -w kernel.sched_autogroup_enabled=0 &> /dev/null

#  For the node 
[[email protected] ~]# vi /etc/profile.d/performance.sh
[[email protected] ~]# cat /etc/profile.d/performance.sh

#sysctl -w vm.min_free_kbytes=112640 &> /dev/null
sysctl -w vm.dirty_ratio=60 &> /dev/null
sysctl -w kernel.sched_autogroup_enabled=0 &> /dev/null

     
    
      
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3.5 Replace python edition

The installation process will configure openGauss Users trust each other ,openEuler Need to use python 3.7.x Version command , But the default version is 2.7.x , So it needs to be replaced .

#  Master node 
[[email protected] ~]# python -V
Python 2.7.18
[[email protected] ~]# mv /usr/bin/python /usr/bin/python.bak
[[email protected] ~]# ln -s /usr/bin/python3 /usr/bin/python
[[email protected] ~]# python -V
Python 3.7.9

#  For the node 
[[email protected] ~]# python -V
Python 2.7.18
[[email protected] ~]# mv /usr/bin/python /usr/bin/python.bak
[[email protected] ~]# ln -s /usr/bin/python3 /usr/bin/python
[[email protected] ~]# python -V
Python 3.7.9

     
    
      
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3.6 Install related packages 

#  Master node 
[[email protected] ~]# yum install -y libaio* \
tar \
vim \
net*

#  For the node 
[[email protected] ~]# yum install -y libaio* \
tar \
vim \
net*

     
    
      
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4 install openGauss database （ Primary node only ）

4.1 Upload and unzip the software 

[[email protected] ~]# mkdir -p /opt/software/openGauss

#  Upload software to this directory 

[[email protected] ~]# cd /opt/software/openGauss
[[email protected] openGauss]# tar -zxvf openGauss-2.1.0-openEuler-64bit-all.tar.gz
[[email protected] openGauss]# tar -zxvf openGauss-2.1.0-openEuler-64bit-om.tar.gz

     
    
      
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4.2 establish XML file

Before installation, you need to create XML file , Contains the cluster name 、 Server name 、 The installation path 、IP And port number, etc , Used to inform openGauss How to install , The following is the configuration scheme of one active and one standby .

[[email protected] openGauss]# vim clusterconfig.xml
[[email protected] openGauss]# cat clusterconfig.xml

<?xml version="1.0" encoding="UTF-8"?>
<ROOT>
    <CLUSTER>
        <PARAM name="clusterName" value="ClusterPS" />
        <PARAM name="nodeNames" value="cloudcsp,cloudcss" />
        <PARAM name="gaussdbAppPath" value="/opt/huawei/install/app" />
        <PARAM name="gaussdbLogPath" value="/var/log/omm" />
        <PARAM name="tmpMppdbPath" value="/opt/huawei/tmp"/>
        <PARAM name="gaussdbToolPath" value="/opt/huawei/install/om" />
        <PARAM name="corePath" value="/opt/huawei/corefile"/>
        <PARAM name="backIp1s" value="192.168.200.174,192.168.200.175"/> 
    </CLUSTER>

    <DEVICELIST>
        <DEVICE sn="cloudcsp">
            <PARAM name="name" value="cloudcsp"/>
            <PARAM name="azName" value="AZ1"/>
            <PARAM name="azPriority" value="1"/>
            <PARAM name="backIp1" value="192.168.200.174"/>
            <PARAM name="sshIp1" value="192.168.200.174"/>
            
        <PARAM name="dataNum" value="1"/>
	    <PARAM name="dataPortBase" value="15400"/>
	    <PARAM name="dataNode1" value="/opt/huawei/install/data/dn,cloudcss,/opt/huawei/install/data/dn"/>
        <PARAM name="dataNode1_syncNum" value="0"/>
        </DEVICE>

        <DEVICE sn="cloudcss">
            <PARAM name="name" value="cloudcss"/>
            <PARAM name="azName" value="AZ1"/>
            <PARAM name="azPriority" value="1"/>
            <PARAM name="backIp1" value="192.168.200.175"/>
            <PARAM name="sshIp1" value="192.168.200.175"/>
	</DEVICE>
    </DEVICELIST>
</ROOT>

     
    
      
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4.3 Configure users and groups and mutual trust 

[[email protected] openGauss]# python /opt/software/openGauss/script/gs_preinstall -U omm -G dbgrp -X /opt/software/openGauss/clusterconfig.xml

#  Output 

Parsing the configuration file.
Successfully parsed the configuration file.
Installing the tools on the local node.
Successfully installed the tools on the local node.
Are you sure you want to create trust for root (yes/no)? yes
Please enter password for root.
Password: 
Creating SSH trust for the root permission user.
Checking network information.
All nodes in the network are Normal.
Successfully checked network information.
Creating SSH trust.
Creating the local key file.
Successfully created the local key files.
Appending local ID to authorized_keys.
Successfully appended local ID to authorized_keys.
Updating the known_hosts file.
Successfully updated the known_hosts file.
Appending authorized_key on the remote node.
Successfully appended authorized_key on all remote node.
Checking common authentication file content.
Successfully checked common authentication content.
Distributing SSH trust file to all node.
Successfully distributed SSH trust file to all node.
Verifying SSH trust on all hosts.
Successfully verified SSH trust on all hosts.
Successfully created SSH trust.
Successfully created SSH trust for the root permission user.
Setting pssh path
Successfully set core path.
Distributing package.
Begin to distribute package to tool path.
Successfully distribute package to tool path.
Begin to distribute package to package path.
Successfully distribute package to package path.
Successfully distributed package.
Are you sure you want to create the user[omm] and create trust for it (yes/no)? yes 
Please enter password for cluster user.
Password: 
Please enter password for cluster user again.
Password: 
Successfully created [omm] user on all nodes.
Preparing SSH service.
Successfully prepared SSH service.
Installing the tools in the cluster.
Successfully installed the tools in the cluster.
Checking hostname mapping.
Successfully checked hostname mapping.
Creating SSH trust for [omm] user.
Checking network information.
All nodes in the network are Normal.
Successfully checked network information.
Creating SSH trust.
Creating the local key file.
Successfully created the local key files.
Appending local ID to authorized_keys.
Successfully appended local ID to authorized_keys.
Updating the known_hosts file.
Successfully updated the known_hosts file.
Appending authorized_key on the remote node.
Successfully appended authorized_key on all remote node.
Checking common authentication file content.
Successfully checked common authentication content.
Distributing SSH trust file to all node.
Successfully distributed SSH trust file to all node.
Verifying SSH trust on all hosts.
Successfully verified SSH trust on all hosts.
Successfully created SSH trust.
Successfully created SSH trust for [omm] user.
Checking OS software.
Successfully check os software.
Checking OS version.
Successfully checked OS version.
Creating cluster's path. Successfully created cluster's path.
Set and check OS parameter.
Setting OS parameters.
Successfully set OS parameters.
Warning: Installation environment contains some warning messages.
Please get more details by "/opt/software/openGauss/script/gs_checkos -i A -h cloudcsp,cloudcss --detail".
Set and check OS parameter completed.
Preparing CRON service.
Successfully prepared CRON service.
Setting user environmental variables.
Successfully set user environmental variables.
Setting the dynamic link library.
Successfully set the dynamic link library.
Setting Core file
Successfully set core path.
Setting pssh path
Successfully set pssh path.
Setting Cgroup.
Successfully set Cgroup.
Set ARM Optimization.
No need to set ARM Optimization.
Fixing server package owner.
Setting finish flag.
Successfully set finish flag.
Preinstallation succeeded.

     
    
      
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4.4 Create database

set up script gs_install Must be omm perform , Otherwise, an error will be reported when executing the script .

[[email protected] openGauss]# chmod -R 755 /opt/software/openGauss/script/
[[email protected] openGauss]# su - omm
[[email protected] ~]$ cd /opt/software/openGauss/script/
[[email protected] script]$ gs_install -X /opt/software/openGauss/clusterconfig.xml

#  Output 

Parsing the configuration file.
Check preinstall on every node.
Successfully checked preinstall on every node.
Creating the backup directory.
Successfully created the backup directory.
begin deploy..
Installing the cluster.
begin prepare Install Cluster..
Checking the installation environment on all nodes.
begin install Cluster..
Installing applications on all nodes.
Successfully installed APP.
begin init Instance..
encrypt cipher and rand files for database.
Please enter password for database:
Please repeat for database:
begin to create CA cert files
The sslcert will be generated in /opt/huawei/install/app/share/sslcert/om
Cluster installation is completed.
Configuring.
Deleting instances from all nodes.
Successfully deleted instances from all nodes.
Checking node configuration on all nodes.
Initializing instances on all nodes.
Updating instance configuration on all nodes.
Check consistence of memCheck and coresCheck on database nodes.
Successful check consistence of memCheck and coresCheck on all nodes.
Configuring pg_hba on all nodes.
Configuration is completed.
Successfully started cluster.
Successfully installed application.
end deploy..

     
    
      
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4.5 View the cluster status 

[[email protected] script]$ gs_om -t status --detail
[   Cluster State   ]

cluster_state   : Normal
redistributing  : No
current_az      : AZ_ALL

[  Datanode State   ]

    node    node_ip         port      instance                            state
-----------------------------------------------------------------------------------------------
1  cloudcsp 192.168.200.174 15400      6001 /opt/huawei/install/data/dn   P Primary Normal
2  cloudcss 192.168.200.175 15400      6002 /opt/huawei/install/data/dn   S Standby Normal

     
    
      
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4.6 Initialize database 

[[email protected] script]$ gsql -d postgres -p 15400 -r
gsql ((openGauss 2.1.0 build 590b0f8e) compiled at 2021-09-30 14:29:54 commit 0 last mr  )
Non-SSL connection (SSL connection is recommended when requiring high-security)
Type "help" for help.

openGauss=# CREATE DATABASE mydb WITH ENCODING 'GBK' template = template0;
CREATE DATABASE

openGauss=# \l
                          List of databases
   Name    | Owner | Encoding  | Collate | Ctype | Access privileges 
-----------+-------+-----------+---------+-------+-------------------
 mydb      | omm   | GBK       | C       | C     | 
 postgres  | omm   | SQL_ASCII | C       | C     | 
 template0 | omm   | SQL_ASCII | C       | C     | =c/omm           +
           |       |           |         |       | omm=CTc/omm
 template1 | omm   | SQL_ASCII | C       | C     | =c/omm           +
           |       |           |         |       | omm=CTc/omm
(4 rows)

     
    
      
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5 Active and standby verification

5.1 The main library creates test tables 

openGauss=# \l
                          List of databases
   Name    | Owner | Encoding  | Collate | Ctype | Access privileges 
-----------+-------+-----------+---------+-------+-------------------
 mydb      | omm   | GBK       | C       | C     | 
 postgres  | omm   | SQL_ASCII | C       | C     | 
 template0 | omm   | SQL_ASCII | C       | C     | =c/omm           +
           |       |           |         |       | omm=CTc/omm
 template1 | omm   | SQL_ASCII | C       | C     | =c/omm           +
           |       |           |         |       | omm=CTc/omm
(4 rows)

openGauss=# \c mydb
Non-SSL connection (SSL connection is recommended when requiring high-security)
You are now connected to database "mydb" as user "omm".
mydb=# create table abc(id int);
CREATE TABLE
mydb=# insert into abc values(1);
INSERT 0 1
mydb=# insert into abc values(2);
INSERT 0 1
mydb=# insert into abc values(3);
INSERT 0 1
mydb=# select * from abc;
 id 
----
  1
  2
  3
(3 rows)

     
    
      
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5.2 The standby database enables read-only verification

5.2.1 Stop the active and standby clusters 

[[email protected] dn]$ gs_om -t stop
Stopping cluster.
=========================================
Successfully stopped cluster.
=========================================
End stop cluster.

[[email protected] dn]$ gs_om -t status --detail
[   Cluster State   ]

cluster_state   : Unavailable
redistributing  : No
current_az      : AZ_ALL

[  Datanode State   ]

    node    node_ip         port      instance                            state
-----------------------------------------------------------------------------------------------
1  cloudcsp 192.168.200.174 15400      6001 /opt/huawei/install/data/dn   P Down    Manually stopped
2  cloudcss 192.168.200.175 15400      6002 /opt/huawei/install/data/dn   S Down    Manually stopped

     
    
      
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5.2.2 Modify the configuration file 

#  Main library 
[[email protected] dn]$ pwd
/opt/huawei/install/data/dn
[[email protected] dn]$ vim postgresql.conf

wal_level = hot_standby
hot_standby = on
hot_standby_feedback = on

#  For the library 
[[email protected] ~]$ cd /opt/huawei/install/data/dn/
[[email protected] dn]$ vim postgresql.conf

wal_level = hot_standby
hot_standby = on
hot_standby_feedback = on

     
    
      
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5.2.3 Start the active and standby clusters 

[[email protected] dn]$ gs_om -t start
Starting cluster.
=========================================
[SUCCESS] cloudcsp
2022-07-20 00:55:00.463 62d6e1e4.1 [unknown] 140465496884160 [unknown] 0 dn_6001_6002 01000  0 [BACKEND] WARNING:  Failed to initialize the memory protect for g_instance.attr.attr_storage.cstore_buffers (1024 Mbytes) or shared memory (4439 Mbytes) is larger.
[SUCCESS] cloudcss
2022-07-20 00:55:16.928 62d6e1f4.1 [unknown] 140246532486080 [unknown] 0 dn_6001_6002 01000  0 [BACKEND] WARNING:  Failed to initialize the memory protect for g_instance.attr.attr_storage.cstore_buffers (1024 Mbytes) or shared memory (4439 Mbytes) is larger.
=========================================
Successfully started.

[[email protected] dn]$ gs_om -t status --detail
[   Cluster State   ]

cluster_state   : Normal
redistributing  : No
current_az      : AZ_ALL

[  Datanode State   ]

    node    node_ip         port      instance                            state
-----------------------------------------------------------------------------------------------
1  cloudcsp 192.168.200.174 15400      6001 /opt/huawei/install/data/dn   P Primary Normal
2  cloudcss 192.168.200.175 15400      6002 /opt/huawei/install/data/dn   S Standby Normal

     
    
      
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5.2.4 Log in to the standby database to verify the data 

[[email protected] dn]$ gsql -d mydb -p 15400 -r
gsql ((openGauss 2.1.0 build 590b0f8e) compiled at 2021-09-30 14:29:54 commit 0 last mr  )
Non-SSL connection (SSL connection is recommended when requiring high-security)
Type "help" for help.

mydb=# select * from abc;
 id 
----
  1
  2
  3
(3 rows)

     
    
      
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5.3 Active standby switching （switchover）

Make sure openGauss Normal state , After all business is over , Then switch .

5.3.1 View active and standby status 

[[email protected] ~]$ gs_om -t status --detail
[   Cluster State   ]

cluster_state   : Normal
redistributing  : No
current_az      : AZ_ALL

[  Datanode State   ]

    node    node_ip         port      instance                            state
-----------------------------------------------------------------------------------------------
1  cloudcsp 192.168.200.174 15400      6001 /opt/huawei/install/data/dn   P Primary Normal
2  cloudcss 192.168.200.175 15400      6002 /opt/huawei/install/data/dn   S Standby Normal

     
    
      
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5.3.2 The standby node performs switching 

[[email protected] ~]$ gs_ctl switchover -D /opt/huawei/install/data/dn/
[2022-07-20 01:07:10.550][33633][][gs_ctl]: gs_ctl switchover ,datadir is /opt/huawei/install/data/dn 
[2022-07-20 01:07:10.550][33633][][gs_ctl]: switchover term (1)
[2022-07-20 01:07:10.554][33633][][gs_ctl]: waiting for server to switchover.............
[2022-07-20 01:07:20.662][33633][][gs_ctl]: done
[2022-07-20 01:07:20.662][33633][][gs_ctl]: switchover completed (/opt/huawei/install/data/dn)

[[email protected] ~]$ gs_om -t status --detail
[   Cluster State   ]

cluster_state   : Normal
redistributing  : No
current_az      : AZ_ALL

[  Datanode State   ]

    node    node_ip         port      instance                            state
-----------------------------------------------------------------------------------------------
1  cloudcsp 192.168.200.174 15400      6001 /opt/huawei/install/data/dn   P Standby Normal
2  cloudcss 192.168.200.175 15400      6002 /opt/huawei/install/data/dn   S Primary Normal

     
    
      
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  • END
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