摘要:
1.在master和standby上安装PG、repmgr,创建postgres角色(rsync is available and passwordless SSH connections are possible between both servers) 【 [postgres@node1 ~] 阅读全文
摘要:
校准参数: random_page_cost(stap), cpu_index_cost(公式), cpu_operator_cost(公式) 步骤: 1.为了方便计算,其它参数常量设为1: set random_page_cost=1; set cpu_tuple_cost=1; set cpu_ 阅读全文