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Thanks Tom and Alvaro. I will upgrade it to 10.13 first.
James
From: Tom Lane <tgl@xxxxxxxxxxxxx>
Sent: Monday, July 20, 2020 18:34 To: jian xu <jamesxu@xxxxxxxxxxx> Cc: MichaelDBA <MichaelDBA@xxxxxxxxxxx>; Scott Ribe <scott_ribe@xxxxxxxxxxxxxxxx>; Laurenz Albe <laurenz.albe@xxxxxxxxxxx>; pgsql-admin@xxxxxxxxxxxxxx <pgsql-admin@xxxxxxxxxxxxxx> Subject: Re: checkpoint process use too much memory jian xu <jamesxu@xxxxxxxxxxx> writes:
> we are seeing this issue again, the checkpoint process is eating up all the memory, > based on the htop, the checkpointer process has > VIRT: 103G > RES: 103G > SHR: 4099M hmmm ... > my pg version is 10.3 , Really the *first* thing you ought to do is update to current (10.13) and see if the problem is still there. But if it is, maybe collecting a memory context map in that process would be informative: https://wiki.postgresql.org/wiki/Developer_FAQ#Examining_backend_memory_use Note you may need a debug build for that recipe to work. regards, tom lane |
