openGauss修改CM集群某个节点IP

最新推荐文章于 2025-02-08 10:55:40 发布

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最新推荐文章于 2025-02-08 10:55:40 发布

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分类专栏： openGauss 文章标签： tcp/ip centos

本文链接：https://blog.youkuaiyun.com/myneth/article/details/128845238

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文章详细记录了在OpenGauss数据库集群环境下，如何停止集群，修改主机IP，更新/etc/hosts文件，修复子用户互信，修改数据库配置文件(postgresql.conf和pg_hba.conf)，以及重新生成和处理静态配置文件，最终成功启动集群的过程。

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说明

环境信息

#操作系统信息
[omm@testosa ~]$ arch 
x86_64
[omm@testosa ~]$ uname -a
Linux testosa 3.10.0-957.el7.x86_64 #1 SMP Thu Nov 8 23:39:32 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
[omm@testosa ~]$ cat /etc/os-release 
NAME="CentOS Linux"
VERSION="7 (Core)"
ID="centos"
ID_LIKE="rhel fedora"
VERSION_ID="7"
PRETTY_NAME="CentOS Linux 7 (Core)"
ANSI_COLOR="0;31"
CPE_NAME="cpe:/o:centos:centos:7"
HOME_URL="https://www.centos.org/"
BUG_REPORT_URL="https://bugs.centos.org/"

CENTOS_MANTISBT_PROJECT="CentOS-7"
CENTOS_MANTISBT_PROJECT_VERSION="7"
REDHAT_SUPPORT_PRODUCT="centos"
REDHAT_SUPPORT_PRODUCT_VERSION="7"
 
[omm@testosa ~]$ cat /etc/redhat-release 
CentOS Linux release 7.6.1810 (Core) 
[omm@testosa ~]$ 


#集群信息
[omm@testosa ~]$ cm_ctl query -Cvdip
[  CMServer State   ]

node       node_ip         instance                           state
---------------------------------------------------------------------
1  testosa 192.168.1.80    1    /opengauss/cmserver/cm_server Primary
2  testosb 192.168.1.81    2    /opengauss/cmserver/cm_server Standby
3  testosc 192.168.1.82    3    /opengauss/cmserver/cm_server Standby
4  testosd 192.168.1.83    4    /opengauss/cmserver/cm_server Standby

[   Cluster State   ]

cluster_state   : Normal
redistributing  : No
balanced        : Yes
current_az      : AZ_ALL

[  Datanode State   ]

node       node_ip         instance                       state            
--------------------------------------------------------------------------
1  testosa 192.168.1.80    6001 12345  /opengauss/data/dn P Primary Normal
2  testosb 192.168.1.81    6002 12345  /opengauss/data/dn S Standby Normal
3  testosc 192.168.1.82    6003 12345  /opengauss/data/dn S Standby Normal
4  testosd 192.168.1.83    6004 12345  /opengauss/data/dn C Cascade Standby Normal
[omm@testosa ~]$ 


#版本信息
[omm@testosa ~]$ gs_ssh -c "gsql -d postgres -p 12345 -c \"select regexp_substr(version(),'.*\d{2} ') as version\""
Successfully execute command on all nodes.

Output:
[SUCCESS] testosa:
                              version                              
-------------------------------------------------------------------
 (openGauss 3.0.3 build 46134f73) compiled at 2022-12-30 20:48:06 
(1 row)

[SUCCESS] testosb:
                              version                              
-------------------------------------------------------------------
 (openGauss 3.0.3 build 46134f73) compiled at 2022-12-30 20:48:06 
(1 row)

[SUCCESS] testosc:
                              version                              
-------------------------------------------------------------------
 (openGauss 3.0.3 build 46134f73) compiled at 2022-12-30 20:48:06 
(1 row)

[SUCCESS] testosd:
                              version                              
-------------------------------------------------------------------
 (openGauss 3.0.3 build 46134f73) compiled at 2022-12-30 20:48:06 
(1 row)


[omm@testosa ~]$ 


[omm@testosa ~]$ gs_ssh -c "gaussdb -V"
Successfully execute command on all nodes.

Output:
[SUCCESS] testosa:
gaussdb (openGauss 3.0.3 build 46134f73) compiled at 2022-12-30 20:48:06 commit 0 last mr  
[SUCCESS] testosb:
gaussdb (openGauss 3.0.3 build 46134f73) compiled at 2022-12-30 20:48:06 commit 0 last mr  
[SUCCESS] testosc:
gaussdb (openGauss 3.0.3 build 46134f73) compiled at 2022-12-30 20:48:06 commit 0 last mr  
[SUCCESS] testosd:
gaussdb (openGauss 3.0.3 build 46134f73) compiled at 2022-12-30 20:48:06 commit 0 last mr  

[omm@testosa ~]$ gs_ssh -c "cm_ctl -V"
Successfully execute command on all nodes.

Output:
[SUCCESS] testosa:
cm_ctl (openGauss CM 3.0.3 build 313feba8) compiled at 2022-12-30 20:58:21 Release
[SUCCESS] testosb:
cm_ctl (openGauss CM 3.0.3 build 313feba8) compiled at 2022-12-30 20:58:21 Release
[SUCCESS] testosc:
cm_ctl (openGauss CM 3.0.3 build 313feba8) compiled at 2022-12-30 20:58:21 Release
[SUCCESS] testosd:
cm_ctl (openGauss CM 3.0.3 build 313feba8) compiled at 2022-12-30 20:58:21 Release

[omm@testosa ~]$ gs_ssh -c "gs_om -V"
Successfully execute command on all nodes.

Output:
[SUCCESS] testosa:
gs_om (openGauss OM 3.0.3 build 698397ea) compiled at 2022-12-30 20:58:12 commit 0 last mr
[SUCCESS] testosb:
gs_om (openGauss OM 3.0.3 build 698397ea) compiled at 2022-12-30 20:58:12 commit 0 last mr
[SUCCESS] testosc:
gs_om (openGauss OM 3.0.3 build 698397ea) compiled at 2022-12-30 20:58:12 commit 0 last mr
[SUCCESS] testosd:
gs_om (openGauss OM 3.0.3 build 698397ea) compiled at 2022-12-30 20:58:12 commit 0 last mr

[omm@testosa ~]$

测试说明

[root@testosb ~]# hostname
testosb
[root@testosb ~]# ifconfig|awk '/broadcast/ {print $2}'
192.168.1.81
[root@testosb ~]# cat /etc/hosts|grep testosb
192.168.1.81  testosb  #Gauss OM IP Hosts Mapping
[root@testosb ~]# 
#如上testosb节点当前的IP地址为192.168.1.81，现在需要修改为192.168.1.90

测试过程

停止数据库集群

[omm@testosa ~]$ cm_ctl stop

修改主机IP

#修改ip信息
[root@testosb ~]# grep IPADDR /etc/sysconfig/network-scripts/ifcfg-ens33
IPADDR="192.168.1.81"
sed -i '/IPADDR/s/192.168.1.81/192.168.1.90/' /etc/sysconfig/network-scripts/ifcfg-ens33
[root@testosb ~]# sed -i '/IPADDR/s/192.168.1.81/192.168.1.90/' /etc/sysconfig/network-scripts/ifcfg-ens33
[root@testosb ~]# grep IPADDR /etc/sysconfig/network-scripts/ifcfg-ens33
IPADDR="192.168.1.90"
#重启网络服务
systemctl restart network
#查询ip信息
[root@testosb ~]# ifconfig|awk '/broadcast/ {print $2}'
192.168.1.90
[root@testosb ~]#

修改/etc/hosts文件

#将当前各个节点的/etc/hosts中的192.168.1.81替换为192.168.1.90
[root@testosa ~]# sed -i 's/192.168.1.81/192.168.1.90/' /etc/hosts
[root@testosb ~]# sed -i 's/192.168.1.81/192.168.1.90/' /etc/hosts
[root@testosc ~]# sed -i 's/192.168.1.81/192.168.1.90/' /etc/hosts
[root@testosd ~]# sed -i 's/192.168.1.81/192.168.1.90/' /etc/hosts

修复子用户互信

#修改子用户互信的known_hosts文件
[omm@testosa ~]$ grep '192.168.1.81' /home/omm/.ssh/known_hosts
192.168.1.81 ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIJUFWSx4LdDZPSiG2YJL8e7elgSWhT7BiVADsZ1rVML1 #OM
[omm@testosa ~]$ sed -i 's/192.168.1.81/192.168.1.90/' /home/omm/.ssh/known_hosts
[omm@testosa ~]$ grep '192.168.1.81' /home/omm/.ssh/known_hosts
[omm@testosa ~]$ 


[omm@testosb ~]$ grep '192.168.1.81' /home/omm/.ssh/known_hosts
192.168.1.81 ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIJUFWSx4LdDZPSiG2YJL8e7elgSWhT7BiVADsZ1rVML1 #OM
[omm@testosb ~]$ sed -i 's/192.168.1.81/192.168.1.90/' /home/omm/.ssh/known_hosts
[omm@testosb ~]$ grep '192.168.1.81' /home/omm/.ssh/known_hosts
[omm@testosb ~]$ 


[omm@testosc ~]$ grep '192.168.1.81' /home/omm/.ssh/known_hosts
192.168.1.81 ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIJUFWSx4LdDZPSiG2YJL8e7elgSWhT7BiVADsZ1rVML1 #OM
[omm@testosc ~]$ sed -i 's/192.168.1.81/192.168.1.90/' /home/omm/.ssh/known_hosts
[omm@testosc ~]$ grep '192.168.1.81' /home/omm/.ssh/known_hosts
[omm@testosc ~]$ 


[root@testosd ~]# grep '192.168.1.81' /home/omm/.ssh/known_hosts
192.168.1.81 ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIJUFWSx4LdDZPSiG2YJL8e7elgSWhT7BiVADsZ1rVML1 #OM
[root@testosd ~]# sed -i 's/192.168.1.81/192.168.1.90/' /home/omm/.ssh/known_hosts
[root@testosd ~]# grep '192.168.1.81' /home/omm/.ssh/known_hosts
[root@testosd ~]# 


#检查子用户互信(四个节点都查询)，保证子用户互信恢复正常
for i in {testosa,testosb,testosc,testosd,192.168.1.80,192.168.1.90,192.168.1.82,192.168.1.83};do
ssh $i hostname
done

修改各节点数据库配置文件（postgresql.conf）

#修改testosb节点数据库配置文件（将192.168.1.81修改为当前的192.168.1.90）
[omm@testosb dn]$ grep '192.168.1.81' /opengauss/data/dn/postgresql.conf
listen_addresses = 'localhost,192.168.1.81'             # what IP address(es) to listen on;
local_bind_address = '192.168.1.81'
replconninfo1 = 'localhost=192.168.1.81 localport=12346 localheartbeatport=12350 localservice=12349 remotehost=192.168.1.80 remoteport=12346 remoteheartbeatport=12350 remoteservice=12349'              # replication connection information used to connect primary on standby, or standby on primary,
replconninfo2 = 'localhost=192.168.1.81 localport=12346 localheartbeatport=12350 localservice=12349 remotehost=192.168.1.82 remoteport=12346 remoteheartbeatport=12350 remoteservice=12349'              # replication connection information used to connect secondary on primary or standby,
replconninfo3 = 'localhost=192.168.1.81 localport=12346 localheartbeatport=12350 localservice=12349 remotehost=192.168.1.83 remoteport=12346 remoteheartbeatport=12350 remoteservice=12349 iscascade=true'             # replication connection information used to connect primary on standby, or standby on primary,

[omm@testosb dn]$ sed -i 's/192.168.1.81/192.168.1.90/' /opengauss/data/dn/postgresql.conf
[omm@testosb dn]$ grep '192.168.1.81' /opengauss/data/dn/postgresql.conf
[omm@testosb dn]$ 


#修改其他节点的数据库配置文件（将192.168.1.81修改为当前的192.168.1.90）
[omm@testosa ~]$ grep '192.168.1.81' /opengauss/data/dn/postgresql.conf
replconninfo1 = 'localhost=192.168.1.80 localport=12346 localheartbeatport=12350 localservice=12349 remotehost=192.168.1.81 remoteport=12346 remoteheartbeatport=12350 remoteservice=12349'              # replication connection information used to connect primary on standby, or standby on primary,
[omm@testosa ~]$ sed -i 's/192.168.1.81/192.168.1.90/' /opengauss/data/dn/postgresql.conf
[omm@testosa ~]$ grep '192.168.1.81' /opengauss/data/dn/postgresql.conf
[omm@testosa ~]$ 


[root@testosc ~]# grep '192.168.1.81' /opengauss/data/dn/postgresql.conf
replconninfo2 = 'localhost=192.168.1.82 localport=12346 localheartbeatport=12350 localservice=12349 remotehost=192.168.1.81 remoteport=12346 remoteheartbeatport=12350 remoteservice=12349'              # replication connection information used to connect secondary on primary or standby,
[root@testosc ~]# sed -i 's/192.168.1.81/192.168.1.90/' /opengauss/data/dn/postgresql.conf
[root@testosc ~]# grep '192.168.1.81' /opengauss/data/dn/postgresql.conf
[root@testosc ~]# 


[root@testosd ~]# grep '192.168.1.81' /opengauss/data/dn/postgresql.conf
replconninfo2 = 'localhost=192.168.1.83 localport=12346 localheartbeatport=12350 localservice=12349 remotehost=192.168.1.81 remoteport=12346 remoteheartbeatport=12350 remoteservice=12349'              # replication connection information used to connect secondary on primary or standby,
[root@testosd ~]# sed -i 's/192.168.1.81/192.168.1.90/' /opengauss/data/dn/postgresql.conf
[root@testosd ~]# grep '192.168.1.81' /opengauss/data/dn/postgresql.conf
[root@testosd ~]#

修改各个节点pg_hba.conf文件

[omm@testosa dn]$ grep '192.168.1.81' /opengauss/data/dn/pg_hba.conf
host    all    omm    192.168.1.81/32    trust
host    all    all    192.168.1.81/32    sha256
[omm@testosa dn]$ sed -i 's/192.168.1.81/192.168.1.90/' /opengauss/data/dn/pg_hba.conf
[omm@testosa dn]$ grep '192.168.1.81' /opengauss/data/dn/pg_hba.conf
[omm@testosa dn]$ 


[omm@testosb dn]$ grep '192.168.1.81' /opengauss/data/dn/pg_hba.conf
host    all    omm    192.168.1.81/32    trust
host    all    all    192.168.1.81/32    sha256
[omm@testosb dn]$ sed -i 's/192.168.1.81/192.168.1.90/' /opengauss/data/dn/pg_hba.conf
[omm@testosb dn]$ grep '192.168.1.81' /opengauss/data/dn/pg_hba.conf
[omm@testosb dn]$ 


[root@testosc ~]# grep '192.168.1.81' /opengauss/data/dn/pg_hba.conf
host    all    omm    192.168.1.81/32    trust
host    all    all    192.168.1.81/32    sha256
[root@testosc ~]# sed -i 's/192.168.1.81/192.168.1.90/' /opengauss/data/dn/pg_hba.conf
[root@testosc ~]# grep '192.168.1.81' /opengauss/data/dn/pg_hba.conf
[root@testosc ~]# 


[root@testosd ~]# grep '192.168.1.81' /opengauss/data/dn/pg_hba.conf
host    all    omm    192.168.1.81/32    trust
host    all    all    192.168.1.81/32    sha256
[root@testosd ~]# sed -i 's/192.168.1.81/192.168.1.90/' /opengauss/data/dn/pg_hba.conf
[root@testosd ~]# grep '192.168.1.81' /opengauss/data/dn/pg_hba.conf
[root@testosd ~]#

重新生成静态配置文件

#如下可以看出静态配置文件里面存的还是旧的IP（192.168.1.81）需要修改为192.168.1.90
[omm@testosa dn]$ gs_om -t view|grep -E '[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+'
sshChannel 1:192.168.1.80
datanodeListenIP 1:192.168.1.80
datanodeLocalHAIP 1:192.168.1.80
datanodePeer0HAIP 1:192.168.1.81
datanodePeer1HAIP 1:192.168.1.82
datanodePeer2HAIP 1:192.168.1.83
sshChannel 1:192.168.1.81
datanodeListenIP 1:192.168.1.81
datanodeLocalHAIP 1:192.168.1.81
datanodePeer0HAIP 1:192.168.1.80
datanodePeer1HAIP 1:192.168.1.82
datanodePeer2HAIP 1:192.168.1.83
sshChannel 1:192.168.1.82
datanodeListenIP 1:192.168.1.82
datanodeLocalHAIP 1:192.168.1.82
datanodePeer0HAIP 1:192.168.1.80
datanodePeer1HAIP 1:192.168.1.81
datanodePeer2HAIP 1:192.168.1.83
sshChannel 1:192.168.1.83
datanodeListenIP 1:192.168.1.83
datanodeLocalHAIP 1:192.168.1.83
datanodePeer0HAIP 1:192.168.1.80
datanodePeer1HAIP 1:192.168.1.81
datanodePeer2HAIP 1:192.168.1.82
[omm@testosa dn]$ 

#修改xml文件里面的IP
[omm@testosa dn]$ grep '192.168.1.81' /tmp/3standby_cm.xml 
                <PARAM name="backIp1s" value="192.168.1.80,192.168.1.81,192.168.1.82,192.168.1.83"/>
                        <PARAM name="cmServerListenIp1" value="192.168.1.80,192.168.1.81,192.168.1.82,192.168.1.83"/>
                        <PARAM name="cmServerHaIp1" value="192.168.1.80,192.168.1.81,192.168.1.82,192.168.1.83"/>
                        <PARAM name="backIp1" value="192.168.1.81"/>
                        <PARAM name="sshIp1" value="192.168.1.81"/>
[omm@testosa dn]$ sed -i 's/192.168.1.81/192.168.1.90/' /tmp/3standby_cm.xml
[omm@testosa dn]$ grep '192.168.1.81' /tmp/3standby_cm.xml 
[omm@testosa dn]$ 

#生成分发静态配置文件
[omm@testosa ~]$ gs_om -t generateconf -X /tmp/3standby_cm.xml --distribute
Generating static configuration files for all nodes.
Creating temp directory to store static configuration files.
Successfully created the temp directory.
Generating static configuration files.
Successfully generated static configuration files.
Static configuration files for all nodes are saved in /opengauss/om/script/static_config_files.
Distributing static configuration files to all nodes.
Successfully distributed static configuration files.
[omm@testosa ~]$ 

#如下四个节点查询静态配置文件里面已经没有192.168.1.81这个IP了
[omm@testosa ~]$ gs_ssh -c "gs_om -t view|grep -E '[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+'"|awk -F : '{print $2}'|sort|uniq

192.168.1.80
192.168.1.82
192.168.1.83
192.168.1.90
[omm@testosa ~]$

cm配置处理

#删除dcf元数据
[omm@testosa ~]$ gs_ssh -c "ls -ld /opengauss/cmserver/dcf_data/metadata"
Successfully execute command on all nodes.

Output:
[SUCCESS] testosa:
drwx------ 2 omm dbgrp 72 Feb  1 22:33 /opengauss/cmserver/dcf_data/metadata
[SUCCESS] testosb:
drwx------ 2 omm dbgrp 72 Feb  1 22:33 /opengauss/cmserver/dcf_data/metadata
[SUCCESS] testosc:
drwx------ 2 omm dbgrp 72 Feb  1 22:33 /opengauss/cmserver/dcf_data/metadata
[SUCCESS] testosd:
drwx------ 2 omm dbgrp 72 Feb  1 22:33 /opengauss/cmserver/dcf_data/metadata

[omm@testosa ~]$ 

[omm@testosa ~]$ gs_ssh -c "rm -rf /opengauss/cmserver/dcf_data/metadata"
Successfully execute command on all nodes.

Output:
[SUCCESS] testosa:
[SUCCESS] testosb:
[SUCCESS] testosc:
[SUCCESS] testosd:

[omm@testosa ~]$ gs_ssh -c "ls -ld /opengauss/cmserver/dcf_data/metadata"
Failed to execute command on all nodes.

Output:
[GAUSS-51400] : Failed to execute the command: sh /opengauss/tmp/ClusterCall_71151.sh. Error:
[FAILURE] testosa:
ls: cannot access /opengauss/cmserver/dcf_data/metadata: No such file or directory
[FAILURE] testosb:
ls: cannot access /opengauss/cmserver/dcf_data/metadata: No such file or directory
[FAILURE] testosc:
ls: cannot access /opengauss/cmserver/dcf_data/metadata: No such file or directory
[FAILURE] testosd:
ls: cannot access /opengauss/cmserver/dcf_data/metadata: No such file or directory
[omm@testosa ~]$ 


#删除动态文件
[omm@testosa ~]$ gs_ssh -c "ls -l /opengauss/app_46134f73/bin/cluster_dynamic_config"
Successfully execute command on all nodes.

Output:
[SUCCESS] testosa:
-rw------- 1 omm dbgrp 9068 Feb  1 22:38 /opengauss/app_46134f73/bin/cluster_dynamic_config
[SUCCESS] testosb:
-rw------- 1 omm dbgrp 9068 Feb  1 22:53 /opengauss/app_46134f73/bin/cluster_dynamic_config
[SUCCESS] testosc:
-rw------- 1 omm dbgrp 9068 Feb  1 22:53 /opengauss/app_46134f73/bin/cluster_dynamic_config
[SUCCESS] testosd:
-rw------- 1 omm dbgrp 9068 Feb  1 22:53 /opengauss/app_46134f73/bin/cluster_dynamic_config

[omm@testosa ~]$ 

[omm@testosa ~]$ gs_ssh -c "rm -rf  /opengauss/app_46134f73/bin/cluster_dynamic_config"
Successfully execute command on all nodes.

Output:
[SUCCESS] testosa:
[SUCCESS] testosb:
[SUCCESS] testosc:
[SUCCESS] testosd:

[omm@testosa ~]$

启动集群

[omm@testosa ~]$ cm_ctl start
cm_ctl: checking cluster status.
cm_ctl: checking cluster status.
cm_ctl: checking finished in 480 ms.
cm_ctl: start cluster. 
cm_ctl: start nodeid: 1
cm_ctl: start nodeid: 2
cm_ctl: start nodeid: 3
cm_ctl: start nodeid: 4
................
cm_ctl: start cluster successfully.
[omm@testosa ~]$ 

#查询集群状态
[omm@testosa ~]$ cm_ctl query -Cvdip
[  CMServer State   ]

node       node_ip         instance                           state
---------------------------------------------------------------------
1  testosa 192.168.1.80    1    /opengauss/cmserver/cm_server Primary
2  testosb 192.168.1.90    2    /opengauss/cmserver/cm_server Standby
3  testosc 192.168.1.82    3    /opengauss/cmserver/cm_server Standby
4  testosd 192.168.1.83    4    /opengauss/cmserver/cm_server Standby

[   Cluster State   ]

cluster_state   : Normal
redistributing  : No
balanced        : Yes
current_az      : AZ_ALL

[  Datanode State   ]

node       node_ip         instance                       state            
---------------------------------------------------------------------------
1  testosa 192.168.1.80    6001 12345  /opengauss/data/dn P Primary Normal 
2  testosb 192.168.1.90    6002 12345  /opengauss/data/dn S Standby Normal 
3  testosc 192.168.1.82    6003 12345  /opengauss/data/dn S Standby Normal 
4  testosd 192.168.1.83    6004 12345  /opengauss/data/dn C Cascade Standby Normal
[omm@testosa ~]$