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HAC cluster modifying administrator user password

2022-07-05 19:08:00 【51CTO】

Henkel database
Catalog
Environmental Science
Document purpose
Details

Environmental Science
system platform ：Linux x86-64 Red Hat Enterprise Linux 7
edition ：4.5.6,4.5.7
Document purpose
This document is used to guide HAC The cluster modifies the administrator user password

Details
1、 Check cluster status , Use A、B There are two ways to judge

Method A： Use the cluster command , Make sure TL The timeline is consistent ,Lag in MB The data synchronization delay should not be too high , The best delay is 0.

       
       [
       
       root
       
       @localhost 
       
       ~]
       
       # 
       
       hghactl 
       
       list
       
       + 
       
       Cluster: 
       
       ha (
       
       7072256965608815760) 
       
       -------+---------+----+-----------+
       
       | 
       
       Member   
       
       | 
       
       Host                
       
       | 
       
       Role    
       
       | 
       
       State   
       
       | 
       
       TL 
       
       | 
       
       Lag 
       
       in 
       
       MB 
       
       |
       
       +----------+---------------------+---------+---------+----+-----------+
       
       | 
       
       hghac228 
       
       | 
       
       192.168.80.228:
       
       5866 
       
       | 
       
       Leader  
       
       | 
       
       running 
       
       |  
       
       6 
       
       |           
       
       |
       
       | 
       
       hghac230 
       
       | 
       
       192.168.80.230:
       
       5866 
       
       | 
       
       Replica 
       
       | 
       
       running 
       
       |  
       
       6 
       
       |         
       
       0 
       
       |
       
       +----------+---------------------+---------+---------+----+-----------+
      
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Method B： Each node queries the process , Yes sender The node is the main library , Yes receiver The node is a standby database

       
       ps 
       
       -
       
       ef 
       
       | 
       
       grep 
       
       sender
       
       root     
       
       26418  
       
       3233  
       
       0 
       
       6
       
        month 11 
       
       ?    
       
       00:
       
       00:
       
       22 
       
       postgres: 
       
       c: 
       
       walsender 
       
       sysdba 
       
       192.168.80.228(
       
       45186) 
       
       streaming 
       
       0
       
       /
       
       16000000
       
       ps 
       
       -
       
       ef 
       
       | 
       
       grep 
       
       receiver
       
       root      
       
       3372  
       
       3348  
       
       0 
       
       6
       
        month 11 
       
       ?     
       
       00:
       
       13:
       
       54 
       
       postgres: 
       
       c: 
       
       walreceiver   
       
       streaming 
       
       0
       
       /
       
       16000000
      
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2、 Pause the cluster

（ Any node can execute , Suspending the cluster only stops the active / standby switchover of the cluster , It does not affect the use of the database ）

HAC The cluster modifies the administrator user password _ database

3、 Change Password （ It can only be executed in the main library ）

       
       highgo
       
       =
       
       # 
       
       alter 
       
       user 
       
       sysdba 
       
       with 
       
       password 
       
       '[email protected]!';
      
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4、 The primary and secondary databases modify password files

       
       vim 
       
       ~
       
       /.
       
       pgpass
       
       #hostname:port:database:username:password
       
       localhost:
       
       5866:
       
       highgo:
       
       sysdba:
       
       Highgo
       
       @12345
       
       localhost:
       
       5866:
       
       highgo:
       
       syssso:
       
       Highgo
       
       @12345
      
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The colon is the separator , The penultimate user name , The last database password , Change the password to the modified password , Save and exit .
5、 The primary and standby databases modify the cluster configuration file

       
       vim 
       
       /
       
       opt
       
       /
       
       HighGo
       
       /
       
       tools
       
       /
       
       hghac
       
       /
       
       hghac.
       
       yaml
       
       authentication:
       
       replication:
       
       password: 
       
       Hello
       
       @123
       
       username: 
       
       sysdba
       
       rewind:
       
       password: 
       
       Hello
       
       @123
       
       username: 
       
       sysdba
       
       sysdba:
       
       password: 
       
       Hello
       
       @123
       
       syssso:
       
       password: 
       
       Hello
       
       @123
       
       syssao:
       
       password: 
       
       Hello
       
       @123
      
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Change the password according to the corresponding user name , Save and exit .

6、 Repository modification data In the catalog postgresql.auto.conf file

       
       vim 
       
       $PGDATA
       
       /
       
       postgresql.
       
       auto.
       
       conf
       
       primary_conninfo 
       
       = 
       
       'user=sysdba password='
       
       '[email protected]'
       
       ' host=192.168.80.228 port=5866 sslmode=prefer sslcompression=0 gssencmode=disable krbsrvname=postgres target_session_attrs=any'
      
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Be careful ：password The front one user by sysdba, That is, modify the user sysdba Password

7、 Recovery cluster （ Any node can execute ）

HAC The cluster modifies the administrator user password _ Change Password _03

8、 Restart the cluster to take effect （ Any node can execute ）

       
       hghactl 
       
       restart 
       
       c
      
1.

HAC The cluster modifies the administrator user password _ database _05

Be careful ：

Last parameter c Is the name of the cluster , Check the method

       
       ps 
       
       -
       
       ef 
       
       | 
       
       grep 
       
       -
       
       v 
       
       grep 
       
       |
       
       grep 
       
       post 
       
       |
       
       awk 
       
       '{print $9}'
       
       |
       
       tail 
       
       -
       
       1
       
       |
       
       awk 
       
       '{sub(/.$/,"")}1'
      
1.

9、 View the cluster status

HAC The cluster modifies the administrator user password _ database _07

10、 Reinitialize all nodes hgproxy

（ If not used hgproxy Please skip this step ）

       
       systemctl 
       
       stop 
       
       hgproxy
       
       -
       
       4.0.2.service   
       
       --
       
        Stop hgproxy service ,hgproxy Please use tab Health Supplement (
       
       proxy Version of the iteration service Dissimilarity )
       
       proxy_ctl  
       
       init 
       
       -
       
       h 
       
       192.168.1.54  
       
       -
       
       U 
       
       sysdba 
       
       -
       
       d 
       
       highgo 
       
       -
       
       p 
       
       5866  
       
       --
       
        initialization 
       
       systemctl 
       
       start 
       
       hgproxy
       
       -
       
       4.0.2.service  
       
       --
       
        start-up hgproxy service 
      
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11、 other

perform hghactl Wait for the cluster command prompt “ Command not found ”, Please configure the environment variable , Refer to the following ：

       
       vim 
       
       ~
       
       /.
       
       bash_profile
       
       export 
       
       PGPORT
       
       =
       
       5866
       
       export 
       
       PGUSER
       
       =
       
       sysdba
       
       export 
       
       PGDATABASE
       
       =
       
       highgo
       
       export 
       
       PGHOME
       
       =/
       
       opt
       
       /
       
       HighGo4
       
       .5
       
       .7
       
       -
       
       see
       
       export 
       
       PGDATA
       
       =/
       
       opt
       
       /
       
       HighGo4
       
       .5
       
       .7
       
       -
       
       see
       
       /
       
       data
       
       export 
       
       PATH
       
       =
       
       $PGHOME
       
       /
       
       bin:
       
       $PATH:
       
       $HOME
       
       /
       
       bin:
       
       /
       
       opt
       
       /
       
       HighGo
       
       /
       
       tools
       
       /
       
       hgproxy
       
       /
       
       bin:
       
       /
       
       opt
       
       /
       
       HighGo
       
       /
       
       tools
       
       /
       
       hghac:
       
       /
       
       opt
       
       /
       
       HighGo
       
       /
       
       tools
       
       /
       
       hghac
       
       /
       
       etcd
       
       export 
       
       LD_LIBRARY_PATH
       
       =
       
       $PGHOME
       
       /
       
       lib:
       
       /
       
       usr
       
       /
       
       lib64:
       
       $LD_LIBRARY_PATH
       
       export 
       
       ETCDCTL_ENDPOINTS
       
       =
       
       http:
       
       //10.1.194.182:2379,http://10.1.194.191:2379,http://10.1.194.192:2379
       
       export 
       
       PATRONICTL_CONFIG_FILE
       
       =/
       
       opt
       
       /
       
       HighGo
       
       /
       
       tools
       
       /
       
       hghac
       
       /
       
       hghac
       
       -
       
       see.
       
       yaml
       
       source 
       
       ~
       
       /.
       
       bash_profile
      
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Be careful ：

1、 You need to modify the actual path of environment variables according to the actual situation , have access to find Command to find the file path

example ： lookup hghac find / -iname hghac -print

2、ETCDCTL_ENDPOINTS Three ip It needs to be modified to configuration etcd Three node ip, You can refer to /opt/HighGo/tools/hghac/hghac-see.yaml In the document etcd:hosts

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https://yzsam.com/2022/186/202207051833077867.html

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