{"id":675,"date":"2017-10-23T00:49:19","date_gmt":"2017-10-23T00:49:19","guid":{"rendered":"http:\/\/wiki.thomasandsofia.com\/?p=675"},"modified":"2017-10-23T00:49:19","modified_gmt":"2017-10-23T00:49:19","slug":"aurora","status":"publish","type":"post","link":"https:\/\/wiki.thomasandsofia.com\/?p=675","title":{"rendered":"Aurora"},"content":{"rendered":"<p><a href=\"https:\/\/www.udemy.com\/aws-certified-solutions-architect-associate\/learn\/v4\/t\/lecture\/2051702?start=0\" target=\"_blank\" rel=\"noopener\">https:\/\/www.udemy.com\/aws-certified-solutions-architect-associate\/learn\/v4\/t\/lecture\/2051702?start=0<\/a><\/p>\n<p>Aurora only runs on AWS infrastructure.<\/p>\n<p>Aurora is a MySQL compatible, relational database engine that combi9nes the speed and availability of high-end commercial databases with the simplicity and cost-effectiveness of open source databases.\u00a0 Aurora provides up to 5 times better performance than MySQL at a price point 1\/10th that of a commercial database (Oracle?) while delivering similar performance and availability.<\/p>\n<h2>Scaling<\/h2>\n<ul>\n<li>Starts with 10GB and scales in 10GB increments to 64TB (Storage Autoscaling)<\/li>\n<li>Compute resources can scale up to 32vCPUs and 244GB RAM\n<ul>\n<li>Not quite &#8216;push button&#8217;.\u00a0 Should be performed during a maintenance window.<\/li>\n<li>Only takes a couple of minutes.<\/li>\n<\/ul>\n<\/li>\n<li>2 copies of your data is contained in each AZ, with a minimum of 3 AZ, so 6 copies of your data.<\/li>\n<li>Can handle the loss of up to two copies of the data without affecting the database write availability and up to 3 copies without affecting the read availability.<\/li>\n<li>Storage is self-healing.\u00a0 Data blocks and disks are continuously scanned for errors and repaired automatically.<\/li>\n<\/ul>\n<h2>Replicas<\/h2>\n<ul>\n<li>Aurora Replicas (up to 15)\n<ul>\n<li>If you lose your primary Aurora database, an Aurora Replica will automatically take over.<\/li>\n<li>You should always use the &#8216;cluster&#8217; endpoint to connect to the database and not the &#8216;instance&#8217; endpoint.\u00a0 If the primary (writer) instance fails, AWS will automatically redirect the cluster endpoint to the next tiered instance.<\/li>\n<\/ul>\n<\/li>\n<li>MySQL Read Replicas (up to 5)\n<ul>\n<li>Loss of the primary MySQL database will NOT automatically cause a Read Replica to take over.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>https:\/\/www.udemy.com\/aws-certified-solutions-architect-associate\/learn\/v4\/t\/lecture\/2051702?start=0 Aurora only runs on AWS infrastructure. Aurora is a MySQL compatible, relational database engine that combi9nes the speed and availability of high-end commercial databases with the simplicity and cost-effectiveness of open source databases.\u00a0 Aurora provides up to 5 times better performance than MySQL at a price point 1\/10th that of a commercial database (Oracle?) ..<\/p>\n<div class=\"clear-fix\"><\/div>\n<p><a href=\"https:\/\/wiki.thomasandsofia.com\/?p=675\" title=\"read more...\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[18,20],"tags":[],"class_list":["post-675","post","type-post","status-publish","format-standard","hentry","category-amazon-web-services-aws","category-aws-databases"],"_links":{"self":[{"href":"https:\/\/wiki.thomasandsofia.com\/index.php?rest_route=\/wp\/v2\/posts\/675","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wiki.thomasandsofia.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wiki.thomasandsofia.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wiki.thomasandsofia.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/wiki.thomasandsofia.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=675"}],"version-history":[{"count":1,"href":"https:\/\/wiki.thomasandsofia.com\/index.php?rest_route=\/wp\/v2\/posts\/675\/revisions"}],"predecessor-version":[{"id":676,"href":"https:\/\/wiki.thomasandsofia.com\/index.php?rest_route=\/wp\/v2\/posts\/675\/revisions\/676"}],"wp:attachment":[{"href":"https:\/\/wiki.thomasandsofia.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=675"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wiki.thomasandsofia.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=675"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wiki.thomasandsofia.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=675"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}