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AWS CLI: cannot restore-db-cluster-to-point-in-time with "--serverless-v2-scaling-configuration"

John@MacBook-Pro:~/IWG/code$ aws rds restore-db-cluster-to-point-in-time \
--restore-type full-copy  \ 
--source-db-cluster-identifier mySourceCluster  \
--db-cluster-identifier  myTargetCluster \
--restore-to-time  2022-09-01T08:00:00Z \
--vpc-security-group-ids sg-07102f7235a9363d3 sg-3bd3ce7f \
--port 5432 \
--db-subnet-group-name default-vpc-5321e635 \
--no-enable-iam-database-authentication \
--serverless-v2-scaling-configuration MinCapacity=1.0,MaxCapacity=4.0

usage: aws [options] <command> <subcommand> [<subcommand> ...] [parameters]
To see help text, you can run:

  aws help
  aws <command> help
  aws <command> <subcommand> help

Unknown options: --serverless-v2-scaling-configuration, MinCapacity=1.0,MaxCapacity=4.0

John@MacBook-Pro:~/IWG/code$

What on earth is going on here? What do they mean by

Unknown options: --serverless-v2-scaling-configuration, MinCapacity=1.0,MaxCapacity=4.0

This is exactly what the AWS Official Doc is advising us to do:

--serverless-v2-scaling-configuration MinCapacity=1.0,MaxCapacity=4.0

https://awscli.amazonaws.com/v2/documentation/api/latest/reference/rds/restore-db-cluster-to-point-in-time.html

--serverless-v2-scaling-configuration (structure)

Contains the scaling configuration of an Aurora Serverless v2 DB cluster.

For more information, see Using Amazon Aurora Serverless v2 in the Amazon Aurora User Guide .

MinCapacity -> (double)

The minimum number of Aurora capacity units (ACUs) for a DB instance in an Aurora Serverless v2 cluster. You can specify ACU values in half-step increments, such as 8, 8.5, 9, and so on. The smallest value that you can use is 0.5.

MaxCapacity -> (double)

The maximum number of Aurora capacity units (ACUs) for a DB instance in an Aurora Serverless v2 cluster. You can specify ACU values in half-step increments, such as 40, 40.5, 41, and so on. The largest value that you can use is 128.

Shorthand Syntax:

MinCapacity=double,MaxCapacity=double

Solution

  • It is to do with AWS CLI Version. It used to be:

    aws --version
aws-cli/2.4.7 Python/3.8.8 Darwin/20.3.0 exe/x86_64 prompt/off

    after updating it to:

    aws --version
aws-cli/2.7.29 Python/3.9.11 Darwin/20.3.0 exe/x86_64 prompt/off

    I no longer see the error.