Ok Sure. But in the parameter group , i can see like this SUM({DBInstanceClassMemory/12038},-50003). How to calculate it ? where should I update it . Should I do change it in 12038 value.
What is meant by DBInstanceClassMemory? My RDS instance shape is "db.r5.xlarge". I am confused with this parameter?
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.
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?