User guide

Associating a Parameter Group with a Cluster
Each cluster you provision has one parameter group associated with it.You can associate a parameter
group with a cluster when you create the cluster, or you can associate a parameter group later by modifying
the cluster. For more information, see To create a cluster (p. 14) and To modify a cluster (p. 21).
Managing Parameter Groups Using the AWS
SDK for Java
This example demonstrates the following tasks related to parameter groups:
• Creating a parameter group
• Modifying a parameter group
• Associating a parameter group with a cluster
• Getting information about parameter groups
This example creates a new parameter group, parametergroup1, and makes the following updates:
• Changes the parameter extra_float_digits to 2 from the default value of 0.
• Replaces the existing workload management configuration (wlm_json_configuration parameter)
with the following JSON which defines a queue in addition to the default queue.
[
{
"user_group":[
"example_user_group1"
],
"query_group":[
"example_query_group1"
],
"query_concurrency":7
},
{
"query_concurrency":5
}
]
The preceding JSON is an array of two objects, one for each queue.The first object defines a queue with
specific user group and query group. It also sets the concurrency level to 7.
{
"user_group":[
"example_user_group1"
],
"query_group":[
"example_query_group1"
],
"query_concurrency":7
}
API Version 2012-12-01
77
Amazon Redshift Management Guide
Associating a Parameter Group with a Cluster