What is CloudWatch namespace?

Publish date: 2023-04-11
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.

In this regard, what is namespace in AWS?

Namespaces -> (list) An array that contains one NamespaceSummary object for each namespace that matches the specified filter criteria. A complex type that contains information about a namespace. The ID of the namespace. The Amazon Resource Name (ARN) that AWS Cloud Map assigns to the namespace when you create it.

Secondly, what is a CloudWatch dimension? Percentile-Based CloudWatch Alarms A dimension is metrics metadata in the form of a name/value pair. Metrics can have up to ten dimensions. When you set dimensions, AWS services send both data and metadata to CloudWatch. Dimensions can be useful for filtering data and aggregating statistics.

Consequently, what is CloudWatch?

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.

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 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 AWS resource ID?

When resources are created, we assign each resource a unique resource ID. You can use resource IDs to find your resources in the Amazon EC2 console. For example, if you are using the stop-instances AWS CLI command to stop an instance, you must specify the instance ID in the command.

How do I get ARN for s3 bucket?

To find the ARN for an S3 bucket, you can look at the Amazon S3 console Bucket Policy or CORS configuration permissions pages.

The following are examples of Amazon S3 resource ARNs.

  • This ARN identifies the /developers/design_info.
  • You can use wildcards as part of the resource ARN.

    • How does CloudWatch work?

    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.

    What are CloudWatch events?

    The service, known as CloudWatch Events, allows customers to consume a near real-time stream of events as changes to their AWS environment take place. These event changes can subsequently trigger notifications, or other actions, through the use of rules. CloudWatch Events get triggered through the use of rule policies.

    What is CloudWatch agent?

    The new CloudWatch Agent, integrated with AWS Systems Manager (SSM) for simplified deployment and management, unifies collecting multi-platform metrics and logs into one agent and enhances the observability of your EC2 instances and virtual machines by collecting in-guest system metrics.

    What is the difference between CloudTrail and CloudWatch?

    The Difference between CloudWatch and CloudTrail CloudWatch focuses on the activity of AWS services and resources, reporting on their health and performance. On the other hand, CloudTrail is a log of all actions that have taken place inside your AWS environment.

    Is CloudWatch a SIEM?

    CloudTrail can log all events from IAM and is one of the most important services from a SIEM perspective. CloudWatch Logs is an extension of the CloudWatch monitoring facility and provides the ability to parse system, service and application logs in near real time.

    What is CloudWatch vs CloudTrail?

    CloudWatch is a monitoring service for AWS resources and applications. CloudTrail is a web service that records API activity in your AWS account. CloudTrail is also enabled by default when you create your AWS account. With CloudWatch, you can collect and track metrics, collect and monitor log files, and set alarms.

    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 CloudTrail?

    AWS CloudTrail is a service that enables governance, compliance, operational auditing, and risk auditing of your AWS account. CloudTrail provides event history of your AWS account activity, including actions taken through the AWS Management Console, AWS SDKs, command line tools, and other AWS services.

    What is CloudWatch logs?

    CloudWatch Logs enables you to see all of your logs, regardless of their source, as a single and consistent flow of events ordered by time, and you can query them and sort them based on other dimensions, group them by specific fields, create custom computations with a powerful query language, and visualize log data in

    What is period in CloudWatch?

    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. Periods are defined in numbers of seconds, and valid values for period are 1, 5, 10, 30, or any multiple of 60.

    How do you define metrics?

    In mathematics, a metric or distance function is a function that defines a distance between each pair of elements of a set. A set with a metric is called a metric space. A metric induces a topology on a set, but not all topologies can be generated by a metric.

    What is sample count?

    Sample Count defines the number of acquired samples it takes in the time window. More samples will have more accurate representation.

    What is data points in CloudWatch?

    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.

    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.

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