{"id":6205,"date":"2012-09-29T19:59:35","date_gmt":"2012-09-30T00:59:35","guid":{"rendered":"http:\/\/mjtsai.com\/blog\/?p=6205"},"modified":"2012-09-29T19:59:38","modified_gmt":"2012-09-30T00:59:38","slug":"spanner","status":"publish","type":"post","link":"https:\/\/mjtsai.com\/blog\/2012\/09\/29\/spanner\/","title":{"rendered":"Spanner"},"content":{"rendered":"<p><a href=\"http:\/\/research.google.com\/archive\/spanner.html\">Google<\/a>:<\/p>\n<blockquote cite=\"http:\/\/research.google.com\/archive\/spanner.html\"><p>Spanner is Google&rsquo;s scalable, multi-version, globally-distributed, and synchronously-replicated database. It is the first system to distribute data at global scale and support externally-consistent distributed transactions. This paper describes how Spanner is structured, its feature set, the rationale underlying various design decisions, and a novel time API that exposes clock uncertainty. This API and its implementation are critical to supporting external consistency and a variety of powerful features: non-blocking reads in the past, lock-free read-only transactions, and atomic schema changes, across all of Spanner.<\/p><\/blockquote>\n<p>Via <a href=\"http:\/\/highscalability.com\/blog\/2012\/9\/24\/google-spanners-most-surprising-revelation-nosql-is-out-and.html\">High Scalability<\/a>, which notes:<\/p>\n<blockquote cite=\"http:\/\/highscalability.com\/blog\/2012\/9\/24\/google-spanners-most-surprising-revelation-nosql-is-out-and.html\"><p>We see most of the criticisms leveled against NoSQL turned out to be problems for Google too. Only Google solved the problems in a typically Googlish way, through the fruitful melding of advanced theory and technology. The result: programmers get the real transactions, schemas, and query languages many crave along with the scalability and high availability they require.<\/p><\/blockquote>","protected":false},"excerpt":{"rendered":"<p>Google: Spanner is Google&rsquo;s scalable, multi-version, globally-distributed, and synchronously-replicated database. It is the first system to distribute data at global scale and support externally-consistent distributed transactions. This paper describes how Spanner is structured, its feature set, the rationale underlying various design decisions, and a novel time API that exposes clock uncertainty. This API and its [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"apple_news_api_created_at":"","apple_news_api_id":"","apple_news_api_modified_at":"","apple_news_api_revision":"","apple_news_api_share_url":"","apple_news_coverimage":0,"apple_news_coverimage_caption":"","apple_news_is_hidden":false,"apple_news_is_paid":false,"apple_news_is_preview":false,"apple_news_is_sponsored":false,"apple_news_maturity_rating":"","apple_news_metadata":"\"\"","apple_news_pullquote":"","apple_news_pullquote_position":"","apple_news_slug":"","apple_news_sections":"\"\"","apple_news_suppress_video_url":false,"apple_news_use_image_component":false,"footnotes":""},"categories":[2],"tags":[143,51,142,144],"class_list":["post-6205","post","type-post","status-publish","format-standard","hentry","category-technology","tag-database","tag-google","tag-spanner","tag-nosql"],"apple_news_notices":[],"_links":{"self":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts\/6205","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/comments?post=6205"}],"version-history":[{"count":2,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts\/6205\/revisions"}],"predecessor-version":[{"id":6207,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts\/6205\/revisions\/6207"}],"wp:attachment":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/media?parent=6205"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/categories?post=6205"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/tags?post=6205"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}