Thanks Martin, 
However this is a database dedicated server and nothing much else is running on 
it. Also, I never saw this happening with 9.2 – but I can’t vouch for the size 
of  files that I was uploading. 

From: Martin French 
Sent: Wednesday, March 26, 2014 1:32 PM
To: Markella Skempri 
Cc: desmodemone ; i...@postgresql-consulting.com ; Alexey Vasiliev ; 
pgsql-performance@postgresql.org ; pgsql-performance-ow...@postgresql.org 
Subject: Re: [PERFORM] Why shared_buffers max is 8GB?


> I wanted to follow up from this question. I’m running on 9.3.4 
> My DB server has 32GB ram so I have assigned 8GB 
> shared_buffer_memory. It is quite a big db but with not much 
> traffic. When there is traffic, it’s usually big. 
>  
> Lately, the kernel has been killing the postmaster for having 
> assigned too much shared memory. Latest crash was when loading a 500MB file. 
>  
> Should I reduce the shared buffers in order for this to be more robust? 
>  
> Thanks 
> Markella 

It may be that other memory settings are contributing towards this (work_mem, 
maintenance_work_mem, max_connections etc). 

I would suggest that the OOM killer is working as intended and something is not 
quite right within the config. 

You may want to review the memory consumption at peak times taking into 
consideration anything else running on the machine. 
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