Re: Increase the size of shared_buffers in AWS RDS 10.11 postgreSQL

Well, you should understand the AWS recommends a 75% setting, or 24GB in their documentation. So, why don’t you just set the value as something like that in your database parameter group settings.

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On Jan 28, 2021, at 10:55 AM, dbatoCloud Solution <dbatocloud17@gmail.com> wrote:



Hi John,

Yes, I calculated as per pgtune(https://pgtune.leopard.in.ua/#/)

 advisor. I took 25% of physical memory 32GB in AWS RDS PostgreSQL which is 8GB. 

AWS PostgreSQL Configuration: -

<image.png>

 

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How to update the shared_buffer into 8GB in the AWS RDS Parameter Group here below?

<image.png>

Thanks & Best Wishes,

Ashok

 

---------------------------------------------------------------------------------------------------------------------

Ashokkumar Mani  (OCP12c/11g/10g/9i, AWS SAA, M103)

Dubai , UAE | BLR , INDIA

M: +971 54 723 0075 | +91 90086 70302 | WApp : +91 81975 99922

W: https://dbatocloudsolution.blogspot.in/ | E: dbatocloud17@gmail.com

On Thu, Jan 28, 2021 at 6:05 PM dbatoCloud Solution <dbatocloud17@gmail.com> wrote:

Hi All,

I want to increase the size of shared_buffers in AWS RDS postgreSQL 10.11.  When I see it in the DB parameter group in AWS it says "SUM({DBInstanceClassMemory/12038},-50003)"  and at the instance level I see 2694408 .

Please let  me know how to calculate and  change the value for 8GB?

 

 

Thanks & Best Wishes,

Ashok

 

---------------------------------------------------------------------------------------------------------------------

Ashokkumar Mani  (OCP12c/11g/10g/9i, AWS SAA, M103)

Dubai , UAE | BLR , INDIA

M: +971 54 723 0075 | +91 90086 70302 | WApp : +91 81975 99922

W: https://dbatocloudsolution.blogspot.in/ | E: dbatocloud17@gmail.com