"checkpointer process" is consuming more memory in Postgres. How to control it?

Question

We have a database cluster as "db1_data". Under this cluster we have two databases. one is db1 and other is qovr. I surprised to see as "checkpointer process" is consuming 8.73GB of memory(RSS value as 9158892). Why "checkpointer process" is consuming this much amount of memory and how to limit the usage of the "checkpointer process" memory.

Answer 1

我也有类似情况。我有两个进程分别消耗16GB的RAM（postgres：检查点进程和postgres：编写器进程）。我看了命令的输出

rust

发现最大的内存被“已删除”的/ dev / zero占用。

为什么会发生？我没有找到释放内存的解决方案。这是一个测试环境，所以我刚刚重启了PG。