name : start-activity-stream.rst **To start a database activity stream** The following ``start-activity-stream`` example starts an asynchronous activity stream to monitor an Aurora cluster named my-pg-cluster. :: aws rds start-activity-stream \ --region us-east-1 \ --mode async \ --kms-key-id arn:aws:kms:us-east-1:1234567890123:key/a12c345d-6ef7-890g-h123-456i789jk0l1 \ --resource-arn arn:aws:rds:us-east-1:1234567890123:cluster:my-pg-cluster \ --apply-immediately Output:: { "KmsKeyId": "arn:aws:kms:us-east-1:1234567890123:key/a12c345d-6ef7-890g-h123-456i789jk0l1", "KinesisStreamName": "aws-rds-das-cluster-0ABCDEFGHI1JKLM2NOPQ3R4S", "Status": "starting", "Mode": "async", "ApplyImmediately": true } For more information, see `Starting a database activity stream <https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/DBActivityStreams.html#DBActivityStreams.Enabling>`__ in the *Amazon Aurora User Guide*.