Parameter Group in RDS

The engine configuration settings that are applied to one or more DB instances are contained in DB parameter groups.

RDS_dbParameterGroup

Only Multi-AZ DB clusters are covered by DB cluster parameter groups. The parameters in the DB cluster parameter group are applied to all of the DB instances in a Multi-AZ DB cluster. Each DB instance in the DB cluster uses the default DB parameter group for the DB engine and DB engine version.

A default DB parameter group is used when a DB instance is created without a DB parameter group being specified. Similar to the previous example, a default DB cluster parameter group is used when a Multi-AZ DB cluster is created without a DB cluster parameter group being specified.

In accordance with the instance’s engine, compute class, and allotted storage, each default parameter group contains database engine defaults and Amazon RDS system settings. A default parameter group’s parameter settings cannot be changed. As an alternative, you create your own parameter group (refer to the below screenshot) and select your own parameter settings.

RDS_dbParameterGroup2

Note that In a parameter group, you define, not all DB engine settings can be altered.

3 comments

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s