postgres数据库

[x893675]

idle + in use <= db硬连接， idle<= in use, idle过大也会影响性能

参考链接:

• https://wiki.postgresql.org/wiki/Number_Of_Database_Connections
• https://www.alexedwards.net/blog/configuring-sqldb

[x893675]

HA 方案参考链接：

• https://www.postgresql.org/docs/12/high-availability.html
• https://github.com/CrunchyData/postgres-operator
• https://access.crunchydata.com/documentation/postgres-operator/latest/architecture/high-availability/