q195136130的专栏

下载地址https://www.pgpool.net/yum/rpms/4.1/redhat/rhel-7-x86_64/pgpool-II-pg12-4.1.4-1pgdg.rhel7.x86_64.rpm[root@pg2 ~]# vi /etc/yum.repos.d/centos.repo[centos7]name=centos7baseurl=file:///mntgpgcheck=0enabled=1安装pgpoolyu.

关闭防火墙，selinuxSystemctl stop firewalldsetenforce 0主设置用户postgres=# create user replicator login replication encrypted password '12345';CREATE ROLEpostgres=#pg_hba.conf-bash-4.2$ vi pg_hba.conf host replication replicator...

下载地址核心3个包按顺序安装postgresql12-libs-12.6-1PGDG.rhel7.x86_64.rpmpostgresql12-12.6-1PGDG.rhel7.x86_64.rpmpostgresql12-server-12.6-1PGDG.rhel7.x86_64.rpmhttps://yum.postgresql.org/12/redhat/rhel-7-x86_64/repoview/postgresqldbserver12.group.html