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

[John Scalia <jayknowsunix@xxxxxxxxx>]

In general, AWS RDS does not set shared_buffers in a manner similar to the community version. From the AWS documentation, the recommendation is to set it at 75% of the  instance’s memory size. So, does the 8Gb that you’re requesting match the 75% recommendation? And if I’m not mistaken about this, you could use the database parameter group to set this to the 8Gb  level without using any sort of calculation.

—

Jay

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On Jan 28, 2021, at 7:35 AM, dbatoCloud Solution <dbatocloud17@xxxxxxxxx> 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

 

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

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