A namespace is a container for CloudWatch metrics. Metrics in different namespaces are isolated from each other, so that metrics from different applications are not mistakenly aggregated into the same statistics. There is no default namespace. You must specify a namespace for each data point you publish to CloudWatch.

How do you get a namespace in CloudWatch?

Open the CloudWatch console at https://console.aws.amazon.com/cloudwatch/.

1. In the navigation pane, choose Metrics.
2. Select a metric namespace (for example, EC2).
3. Select a metric dimension (for example, Per-Instance Metrics).
4. The All metrics tab displays all metrics for that dimension in the namespace.

What is CloudWatch in simple terms?

Amazon CloudWatch is a monitoring and management service that provides data and actionable insights for AWS, hybrid, and on-premises applications and infrastructure resources. With CloudWatch, you can collect and access all your performance and operational data in form of logs and metrics from a single platform.

What is a CloudWatch dimension?

A dimension is a name/value pair that is part of the identity of a metric. You can assign up to 10 dimensions to a metric. Because dimensions are part of the unique identifier for a metric, whenever you add a unique name/value pair to one of your metrics, you are creating a new variation of that metric.

What is data point in CloudWatch?

A datapoint is the value of a metric for a given metric aggregation period i.e. if you use one minute as an aggregation period for a metric, then there will be one datapoint every minute.

How do I create a custom namespace in CloudWatch?

To create a namespace, perform the following procedure. Sign in to the AWS Management Console and open the AWS Cloud Map console at https://console.aws.amazon.com/cloudmap/. Creating Namespaces

1. Choose Create namespace.
2. On the Create namespace page, enter the applicable values.
3. Choose Create namespace.

What is an AWS namespace?

A namespace is a way to group services for an application. When you create a namespace, you specify how you want to discover service instances that you register with AWS Cloud Map: using API calls or using DNS queries. You also specify the name that you want your application to use to discover instances.

Is AWS CloudWatch SaaS?

As a SaaS service provider, AWS provides its clients with complete solutions that are run and managed by AWS. Through services like Amazon CloudWatch, businesses can complete application and infrastructure management in real time.

Why do we use CloudWatch in AWS?

CloudWatch collects monitoring and operational data in the form of logs, metrics, and events, and visualizes it using automated dashboards so you can get a unified view of your AWS resources, applications, and services that run in AWS and on-premises.

Is CloudWatch global or regional?

CloudWatch Dashboard All dashboards are global, not region-specific. You can add, remove, resize, move, edit or rename a graph. You can metrics manually in a graph.

What is a CloudWatch rule?

Amazon CloudWatch Events delivers a near real-time stream of system events that describe changes in Amazon Web Services (AWS) resources. Using simple rules that you can quickly set up, you can match events and route them to one or more target functions or streams.

What is CloudWatch custom metrics?

You can view statistical graphs of your published metrics with the AWS Management Console. CloudWatch stores data about a metric as a series of data points. Each data point has an associated time stamp. You can even publish an aggregated set of data points called a statistic set.

How do you make metrics in CloudWatch?

Creating custom CloudWatch metrics and alarms

1. Produce your application monitoring script and custom metric.
2. Upload your monitoring script.
3. Publish your custom metric to CloudWatch (the first time you publish a data point for a new custom metric, it is created), see Publish Custom Metrics.

What is the minimum duration for computing a statistics in CloudWatch?

You can retrieve, graph, and set alarms on the following statistical values for Amazon CloudWatch metrics: Average, Sum, Minimum, Maximum, and Sample Count. Statistics can be computed for any time periods between 60-seconds and 1-day.

What is evaluation period in CloudWatch?

The evaluation interval is the number of data points multiplied by the period. For example, if you configure 4 out of 5 data points with a period of 1 minute, the evaluation interval is 5 minutes. If you configure 3 out of 3 data points with a period of 10 minutes, the evaluation interval is 30 minutes.

What is average in CloudWatch?

The AVG of a single time series returns a scalar representing the average of all the data points in the metric. The AVG of an array of time series returns a single time series. Missing values are treated as 0. We recommend that you do not use this function in CloudWatch alarms.