Re: Increase the size of shared_buffers in AWS RDS 10.11 postgreSQL - Mailing list pgsql-admin

From John Scalia
Subject Re: Increase the size of shared_buffers in AWS RDS 10.11 postgreSQL
Date
Msg-id 8EFCA485-5230-4E78-820E-F32097F4A47B@gmail.com
Whole thread Raw
In response to Re: Increase the size of shared_buffers in AWS RDS 10.11 postgreSQL  (dbatoCloud Solution <dbatocloud17@gmail.com>)
Responses Re: Increase the size of shared_buffers in AWS RDS 10.11 postgreSQL
List pgsql-admin
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>

 

<image.png>



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

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