How to Set PostgreSQL 9.6 DB Parameters for Amazon RDS Aurora
How to Set PostgreSQL 9.6 DB Parameters for Amazon RDS Aurora
Amazon RDS Aurora is a managed service providing scalable and highly available databases. In this context, we’ll discuss how to set PostgreSQL 9.6 database parameters on Amazon RDS Aurora, a common issue faced by data scientists and software engineers.
What is Amazon RDS Aurora?
Amazon RDS Aurora is a fully managed relational database service by AWS. It provides compatibility with the popular database engines, MySQL and PostgreSQL, while offering up to five times the performance of standard MySQL and three times the performance of standard PostgreSQL.
Understanding DB Parameter Groups
Before we dive into the solution, let’s understand what DB parameter groups are. A DB parameter group acts as a container for engine configuration values that are applied to one or more DB instances. A default DB parameter group is created if you don’t specify a custom one when you create a DB instance.
Issue: Not Able to Set PostgreSQL 9.6 DB Parameters
Now, you might encounter a situation where you’re not able to set PostgreSQL 9.6 DB parameters for Amazon RDS Aurora. This issue could be due to a variety of reasons, but the most common is not having the correct permissions or not using the right parameter group.
Solution: Setting PostgreSQL 9.6 DB Parameters
Here is a step-by-step guide on how to correctly set PostgreSQL 9.6 DB parameters for Amazon RDS Aurora:
Step 1: Create a Custom DB Parameter Group
In the AWS Management Console, navigate to the ‘RDS Dashboard’. Select ‘Parameter Groups’ from the navigation pane and click on ‘Create Parameter Group’. Select the ‘DB Parameter Group Family’ according to your DB engine and version, for instance, ‘aurora-postgresql9.6’, and give it a unique name and description.
DB Parameter Group Family: aurora-postgresql9.6
Name: CustomParameterGroup
Description: Custom Parameter Group for PostgreSQL 9.6
Step 2: Modify the DB Parameter Group
Click on the new parameter group and then on ‘Edit Parameters’. You can now change the values of the parameters according to your requirements.
Parameter Name: max_connections
Value: 200
Step 3: Apply the DB Parameter Group to the DB Instance
Go to ‘DB Instances’ in the RDS Dashboard and select your DB instance. Choose ‘Modify’. In the ‘Database Options’ section, select your custom DB parameter group from the drop-down for ‘DB Parameter Group’. Then, click on ‘Continue’ and ‘Apply Immediately’ for the changes to take effect.
DB Parameter Group: CustomParameterGroup
Step 4: Reboot the DB Instance
For the changes to take effect, you need to reboot your DB instance. You can do this by selecting your DB instance, clicking on ‘Action’ and then ‘Reboot’.
Action: Reboot
Conclusion
Setting PostgreSQL 9.6 DB parameters for Amazon RDS Aurora can seem challenging initially, but with a clear understanding of DB parameter groups and the correct steps, you can easily configure your database according to your requirements. Always remember to create a custom DB parameter group and apply it correctly to your DB instance. Happy data managing!
Keywords:
- Amazon RDS Aurora
- PostgreSQL 9.6 DB parameters
- DB Parameter Groups
- AWS Management Console
- Custom DB Parameter Group
- Reboot DB Instance
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