repmgr安装部署

https://repmgr.org/

官方操作手册Documentation

https://repmgr.org/docs/4.0/index.html

下载URL

https://rpm.2ndquadrant.com/site/content/    rpm

https://repmgr.org/download/repmgr-4.0.5.tar.gz  source code

编译安装

/home/zhaowzh/pg/pg966/  为 pg源码安装文件目录

从 yum.postgresql.org为系统安装适当的存储库RPM

[root@vlnx107002 repmgr]# wget  https://download.postgresql.org/pub/repos/yum/9.6/redhat/rhel-7-x86_64/pgdg-centos96-9.6-3.noarch.rpm

[root@vlnx107002 repmgr]# rpm -i pgdg-redhat96-9.6-3.noarch.rpm

安装用于构建PostgreSQL的先决条件：

 [root@vlnx107002 repmgr]# yum check-update

 [root@vlnx107002 repmgr]# yum groupinstall "Development Tools"

 [root@vlnx107002 repmgr]# yum install yum-utils openjade docbook-dtds docbook-style-dsssl docbook-style-xsl

 [root@vlnx107002 repmgr]# yum-builddep postgresql96

开始安装 repmgr

[root@vlnx107002 ~]# mkdir -p /home/zhaowzh/pg/pg966/contrib/repmgr

[root@vlnx107002 ~]#  cp -R /home/zhaowzh/repmgr/repmgr405/* /home/zhaowzh/pg/pg966/contrib/repmgr/

注意 确保目标PostgreSQL版本的pg_config位于 $ PATH中   即 pg_config所在的目录要与 ./configure --prefix=/usr/local/postgresql  下的bin 目录中。

[root@vlnx107002 repmgr]# yum install gcc-c++

[root@vlnx107002 repmgr]# ./configure --prefix=/usr/local/postgresql

[root@vlnx107002 repmgr]#  make

[root@vlnx107002 repmgr]# make install

验证：

[postgres@vlnx107002 ~]$ repmgr --version

[postgres@vlnx107002 ~]$ repmgrd --version

[root@vlnx107002 9.6]# vim /etc/sudoers

Defaults:postgres !requiretty

      postgres ALL = NOPASSWD: /usr/bin/systemctl stop postgresql-9.6, \

        /usr/bin/systemctl start postgresql-9.6, \

        /usr/bin/systemctl restart postgresql-9.6 \

        /usr/bin/systemctl reload postgresql-9.6

配置本部分是为了 repmgr后续维护（节点提升 promote 等操作），如果不设置将会在做类似 

repmgr -f /etc/repmgr/9.6/repmgr.conf  standby follow 命令时失败或报错