{"id":2865,"date":"2019-08-30T09:22:51","date_gmt":"2019-08-30T09:22:51","guid":{"rendered":"https:\/\/www.testpreptraining.com\/tutorial\/?page_id=2865"},"modified":"2022-03-03T08:42:39","modified_gmt":"2022-03-03T08:42:39","slug":"multi-region-design","status":"publish","type":"page","link":"https:\/\/www.testpreptraining.ai\/tutorial\/aws-certified-developer-associate\/multi-region-design\/","title":{"rendered":"Multi-Region Design"},"content":{"rendered":"\n<p><strong>Multi-region enables<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Improve latency for end-users<\/li><li>Disaster recovery<\/li><li>Business requirements<\/li><\/ul>\n\n\n\n<p>Requirements for Multi-region Design<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Data replication between regions be fast and\nreliable &#8211; Use DynamoDB Global Tables<\/li><li>global network infrastructure to connect\ndifferent regions \u2013 Use AWS <\/li><li>Services be stateless, and state be shared\nbetween regions &#8211; Needs in-memory object caching as Memcached or Redis<\/li><li>Synchronous cross-regional calls be avoided.\nApplications should use regional resources &#8211; Use AWS cross-region replication\nfor S3<\/li><li>DNS routing for different scenarios \u2013 Use Route\n53.<\/li><\/ul>\n\n\n\n<p>Cross-Region Replication (CRR)<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>It is a bucket-level configuration <\/li><li>Provides asynchronous object copying buckets in different AWS Regions, automatically.<\/li><li>CRR Buckets can be owned by same or different AWS accounts.<\/li><li>CRR is enabled with a bucket-level configuration. <\/li><li>Add replication configuration to source bucket. <\/li><li>Following are necessary for a minimum configuration<ul><li>destination bucket, to replicate S3 objects<\/li><\/ul><ul><li>AWS IAM role S3 can assume to replicate objects <\/li><\/ul><\/li><\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>CRR Requirements <\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\"><li>Source bucket owner must have source and\ndestination AWS Regions enabled for their account. <\/li><li>destination bucket owner must have destination\nRegion enabled for their account. <\/li><li>Versioning should be active on both source and\ndestination buckets <\/li><li>source and destination buckets are in dissimilar\nAWS Regions.<\/li><li>S3 has permissions to replicate objects from\nsource bucket to destination bucket.<\/li><\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>S3 Cross-Region\nReplication <\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\"><li>Configurations&nbsp;\nfor all S3 cross-region replication is at bucket level<\/li><li>Single configuration for every bucket can be\ndefined<\/li><li>Versioning is compulsory <\/li><li>Destination bucket have exact replicas of\nobjects in source bucket<\/li><li>Same key names and the same metadata: creation\ntime, owner, user-defined metadata, version ID, ACL(Access Control List), and\nstorage class<\/li><li>dissimilar storage class can be specified for\ntarget bucket <\/li><li>data in transit across AWS regions, is encrypted\nby SSL<\/li><li>Existing files before replication activation\nwill not be handled by AWS by default<\/li><li>For replication of existing objects within\nbuckets, data boot is required<\/li><li>actions done under lifecycle configuration are\nnot copied<\/li><li>S3 provides recursion protection by using\nversioning<\/li><li>Using replication specific S3 actions\n(PutObjectReplication)<\/li><li>Replication process is asynchronous<\/li><li>Delete protection for faulty operations <\/li><\/ul>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img loading=\"lazy\" decoding=\"async\" width=\"281\" height=\"327\" src=\"https:\/\/www.testpreptraining.ai\/tutorial\/wp-content\/uploads\/2019\/09\/image-197.png\" alt=\"Multi-Region Design\" class=\"wp-image-3839\"\/><\/figure><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Multi-region enables Improve latency for end-users Disaster recovery Business requirements Requirements for Multi-region Design Data replication between regions be fast and reliable &#8211; Use DynamoDB Global Tables global network infrastructure to connect different regions \u2013 Use AWS Services be stateless, and state be shared between regions &#8211; Needs in-memory object caching as Memcached or Redis&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":2476,"menu_order":10,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"categories":[2],"tags":[496,495],"class_list":["post-2865","page","type-page","status-publish","hentry","category-amazon-aws","tag-cloud","tag-multi-region-design"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.1 - 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