{"id":3005,"date":"2019-08-31T11:08:16","date_gmt":"2019-08-31T11:08:16","guid":{"rendered":"https:\/\/www.testpreptraining.com\/tutorial\/?page_id=3005"},"modified":"2020-05-01T11:07:01","modified_gmt":"2020-05-01T11:07:01","slug":"cloudwatch-basics-2","status":"publish","type":"page","link":"https:\/\/www.testpreptraining.ai\/tutorial\/aws-certified-security-specialty\/cloudwatch-basics-2\/","title":{"rendered":"CloudWatch Basics"},"content":{"rendered":"\n<p>Amazon CloudWatch monitors<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>AWS resources<\/li><li>applications running on AWS<\/li><\/ul>\n\n\n\n<p>CloudWatch<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>collects and tracks metrics, for AWS resources and applications.<\/li><li>CloudWatch home page displays metrics about every AWS service in use.<\/li><li>Can create custom dashboards to display metrics<\/li><li>Alarms can be configured to monitor metrics and send notifications, if needed<\/li><li>Alarms can automatically make changes to the resources under monitoring against a threshold<\/li><\/ul>\n\n\n\n<p>Access CloudWatch by<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Amazon CloudWatch console \u2013 <a href=\"https:\/\/console.aws.amazon.com\/cloudwatch\/\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/console.aws.amazon.com\/cloudwatch\/<\/a><\/li><li>AWS CLI&nbsp;<\/li><li>CloudWatch API<\/li><li>AWS SDKs<\/li><\/ul>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"624\" height=\"365\" src=\"https:\/\/www.testpreptraining.ai\/tutorial\/wp-content\/uploads\/2019\/09\/image-128.png\" alt=\"\" class=\"wp-image-3689\"\/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>CloudWatch Namespaces<\/strong><\/h3>\n\n\n\n<p>A cloudwatch namespace is<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>It is a container for CloudWatch metrics.<\/li><li>Metrics are isolated if they are in different namespaces<\/li><li>There is no default namespace.<\/li><li>Must specify a namespace for each data point to be published to CloudWatch.<\/li><li>While creating a metric, provide namespace name.<\/li><li>These names must contain valid XML characters,<\/li><li>Be fewer than 256 characters in length.<\/li><li>Possible characters are: alphanumeric characters (0-9A-Za-z), period (.), hyphen (-), underscore (_), forward slash (\/), hash (#), and colon (:).<\/li><li>The AWS namespaces, naming convention: AWS\/service<\/li><\/ul>\n\n\n\n<p><strong>CloudWatch Dimensions<\/strong><\/p>\n\n\n\n<p>A dimension<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>is a name\/value pair<\/li><li>part of the identity of a metric.<\/li><li>a metric can be given a maximum of 10 dimensions<\/li><li>Used to describe characteristic of a metric<\/li><li>Also used to filter the results that CloudWatch returns<\/li><li>For few AWS services like EC2, CloudWatch can aggregate data across dimensions<\/li><li>Example &#8211; Server=Producton,Domain=City01<\/li><\/ul>\n\n\n\n<p><strong>CloudWatch Statistics<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>It is metric data aggregations over specified periods of time.<\/li><li>Aggregations use the namespace, metric name, dimensions, and the data point unit of measure, within the specified time period.<\/li><\/ul>\n\n\n\n<p><strong>Available statistics<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Minimum&nbsp; &#8211; lowest value observed during a period. indicates, when low activity<\/li><li>Maximum &#8211; highest value observed during a period. indicates, when high activity<\/li><li>Sum \u2013 Add all values submitted for matching metric indicates, total activity<\/li><li>Average &#8211; The value of Sum \/ SampleCount during a period.<\/li><li>SampleCount&nbsp; &#8211; The count (number) of data points used for statistical calculation.<\/li><li>pNN.NN&nbsp; &#8211; Value of specified percentile up to 2 decimal places like p95.45. Not for negative value&nbsp;metrics.<\/li><\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Amazon CloudWatch monitors AWS resources applications running on AWS CloudWatch collects and tracks metrics, for AWS resources and applications. CloudWatch home page displays metrics about every AWS service in use. Can create custom dashboards to display metrics Alarms can be configured to monitor metrics and send notifications, if needed Alarms can automatically make changes to&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":2474,"menu_order":10,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"categories":[2],"tags":[7,400],"class_list":["post-3005","page","type-page","status-publish","hentry","category-amazon-aws","tag-aws","tag-cloudwatch-basics"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>CloudWatch Basics - Tutorials (TestPrep)<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.testpreptraining.ai\/tutorial\/aws-certified-security-specialty\/cloudwatch-basics-2\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"CloudWatch Basics - Tutorials (TestPrep)\" \/>\n<meta property=\"og:description\" content=\"Amazon CloudWatch monitors AWS resources applications running on AWS CloudWatch collects and tracks metrics, for AWS resources and applications. 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