User guide

• First, you specify the metric dimension to work with. A dimension is a name-value pair that helps you
to uniquely identify a metric. The dimensions for Amazon Redshift are ClusterIdentifier and
NodeID. In the Amazon CloudWatch console, the Redshift Cluster and Redshift Node views
are provided to easily select cluster and node-specific dimensions. For more information about
dimensions, see Dimensions in the Amazon CloudWatch Developer Guide.
• Second, you specify the metric name, such as ReadIOPS.
The following table summarizes the types of Amazon Redshift metric dimensions that are available to
you. All data is available in 1-minute periods at no charge.
DescriptionDimensionAmazon Cloud-
Watch
Namespace
Filters requested data that is specific to the nodes of a cluster.
NodeID will be either "Leader", "Shared", or "Compute-N"
where N is 0, 1, ... for the number of nodes in the cluster.
"Shared" means that the cluster has only one node, i.e. the
leader node and compute node are combined.
NodeIDAWS/Redshift
Filters requested data that is specific to the cluster. Metrics
that are specific to clusters include HealthStatus, Mainten-
anceMode, and DatabaseConnections. In general metrics
in for this dimension (e.g. ReadIOPS) that are also metrics of
nodes represent an aggregate of the node metric data.You
should take care in interpreting these metrics because they
aggregate behavior of leader and compute nodes.
ClusterIdenti-
fier
Working with gateway and volume metrics is similar to working with other service metrics. Many of the
common tasks are outlined in the Amazon CloudWatch documentation and are listed below for your
convenience:
• Listing Available Metrics
• Getting Statistics for a Metric
• Creating CloudWatch Alarms
API Version 2012-12-01
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Amazon Redshift Management Guide
Working with Performance Metrics in the Amazon
CloudWatch Console