What is an AWS namespace?

Namespaces. A namespace is a container for CloudWatch metrics. The AWS namespaces typically use the following naming convention: AWS/ service .

A namespace is a CloudWatch metrics container. Namespaces are useful if you want to avoid aggregating two different metrics with the same name. Every metric data point needs to be assigned to a namespace. CloudWatch won’t assign metrics to a default namespace for you.

Beside above, what is data point in AWS? 1) Service or application publishes metrics data at a specific frequency; usually every 1 minute or 5 minutes. 2) This metrics data is typically summarized over a time window aka Time Period to spot a trend. Each summarized data is a data point.

Then, what is namespace in REST API?

Namespace HTTP RESTful API. Use the CDAP Namespace HTTP RESTful API to create, list, and delete namespaces in the CDAP instance. Namespaces, their use and examples, are described in the Developer Manual: Namespaces. These methods return a status code, as listed in the RESTful API Status Codes.

Does CloudWatch cost money?

Your CloudWatch bill consists of the following components, with pricing as of July 2017: CloudWatch Dashboards: $3.00 per dashboard per month. Custom Metrics: Basic monitoring, or your metrics for CPU utilization, data transfer, and disk usage activity from Amazon EC2 instances are free.

What is AWS CloudWatch metrics?

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 period in CloudWatch?

As per AWS CloudWatch doc, “A period is the length of time associated with a specific Amazon CloudWatch statistic. Each statistic represents an aggregation of the metrics data collected for a specified period of time.” If you set period of 1 day and statistic as average, then you will get one day average.

What is CloudWatch?

Amazon CloudWatch is a monitoring service for AWS cloud resources and the applications you run on AWS. You can use Amazon CloudWatch to collect and track metrics, collect and monitor log files, set alarms, and automatically react to changes in your AWS resources.

What is sample count in AWS?

Sample Count defines the number of acquired samples it takes in the time window. The min, max and avg are calculated from this subset of samples and not on all samples and this will hence make a difference.

What is a Datapoint 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.

What’s the smallest metric resolution you can achieve in CloudWatch?

The minimum resolution supported by CloudWatch is 1-second data points, which is a high-resolution metric, or you can store metrics at 1-minute granularity. Sometimes metrics are received by Cloudwatch at varying intervals, such as 3-minute or 5-minute intervals.

What is the default cooldown period in auto scaling?

300 seconds

Is CloudWatch free?

You can get started with Amazon CloudWatch for free. Most AWS Services (EC2, S3, Kinesis, etc.) vend metrics automatically for free to CloudWatch. Many applications should be able to operate within these free tier limits.

What is the purpose of namespace?

A namespace is a declarative region that provides a scope to the identifiers (the names of types, functions, variables, etc) inside it. Namespaces are used to organize code into logical groups and to prevent name collisions that can occur especially when your code base includes multiple libraries.

What is a data point in math?

A data point is any single, unique piece of information. Multiple data points can be used to create a chart or graph, showing various statistics over time.

Where are CloudTrail logs stored?

CloudTrail generates encrypted log files and stores them in Amazon S3.

How do I set up alerts in AWS?

How to Set Billing Alerts for AWS Services Choose my Account→ My Billing Dashboard and log in to the system if necessary. Click Preferences on the left side of the browser window. Select Receive Billing Alerts and then click Save Preferences. Click Manage Billing Alerts. Choose AlarmsBilling on the left side of the display. Click Create Alarm.

How long do CloudWatch metrics last?

As of November 1st, 2016, the retention window for AWS metrics in CloudWatch has expanded from 14 days to 15 months. Note that the data granularity will be reduced when you widen your range beyond the past 15 days: One minute data points are available for 15 days. Five minute data points are available for 63 days.

How do you make a CloudWatch alarm?

You can create an alarm from the Alarms list in the Amazon CloudWatch console. Select a metric for your alarm: Open the Amazon CloudWatch console at https:// console.aws.amazon.com/ cloudwatch/. Define the alarm: Define your actions: On the review page, review the settings. On the confirmation page, click close.