{"id":5077,"date":"2020-02-21T00:20:26","date_gmt":"2020-02-20T15:20:26","guid":{"rendered":"https:\/\/www.climb.co.jp\/blog_dbmoto\/?p=5077"},"modified":"2020-04-25T20:53:46","modified_gmt":"2020-04-25T11:53:46","slug":"cap%e5%ae%9a%e7%90%86%e3%81%ae%e5%a3%81-%ef%bd%9enewsql%e3%81%b8%e3%81%ae%e9%81%93%ef%bd%9e","status":"publish","type":"post","link":"https:\/\/www.climb.co.jp\/blog_dbmoto\/archives\/5077","title":{"rendered":"CAP\u5b9a\u7406\u306e\u58c1 \uff5eNewSQL\u3078\u306e\u9053\uff5e"},"content":{"rendered":"\n

\u524d\u56de\u3001\u300cACID\u539f\u7406\u3068CAP\u5b9a\u7406<\/a>\u300d\u3068\u3044\u3046\u8a18\u4e8b\u3067\u3001NewSQL\u304c\u751f\u307e\u308c\u305f\u80cc\u666f\u3092\u8aac\u660e\u3057\u307e\u3057\u305f\u3002\u8aac\u660e\u3068\u3044\u3063\u3066\u3082\u3001\u3056\u3063\u304f\u308a\u3068NoSQL\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u304c\u751f\u307e\u308c\u305f\u80cc\u666f\u306b\u89e6\u308c\u3001\u3067\u3082NoSQL\u306fACID\u539f\u7406\u306b\u6e96\u62e0\u3067\u304d\u306a\u304f\u3066OLTP\uff08\u30aa\u30f3\u30e9\u30a4\u30f3 \u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u51e6\u7406\uff09\u3092\u30b5\u30dd\u30fc\u30c8\u3067\u304d\u306a\u3044\u3088\u306d \u2192<\/strong> \u305d\u3053\u3067\u3001NewSQL\u767b\u5834\uff01\u2192<\/strong> \u3064\u30fb\u3065\u30fb\u304f\u2026 \u3068\u3044\u3046\u6d41\u308c\u3067\u3057\u305f\u3002\u3064\u3065\u304d\u304c\u6c17\u306b\u306a\u3063\u3066\u6c17\u306b\u306a\u3063\u3066\u98df\u4e8b\u304c\u5589\u3092\u901a\u3089\u306a\u3044\u8aad\u8005\u304c\u9913\u6b7b\u3057\u3066\u3057\u307e\u308f\u306a\u3044\u3088\u3046\u306b\u3001\u304c\u3093\u3070\u3063\u3066\u7d9a\u304d\u3092\u66f8\u304d\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n

NewSQL\u306f\u3069\u3046\u3084\u3063\u3066CAP\u5b9a\u7406\u306e\u58c1\u3092\u4e57\u308a\u8d8a\u3048\u305f\u306e\u3067\u3057\u3087\u3046\u304b\uff1f<\/p>\n

\u524d\u8a18\u4e8b\u3092\u8aad\u307f\u8fd4\u3059\u3068\u3001\u6700\u5f8c\u306b\u3053\u3046\u66f8\u3044\u3066\u3042\u308a\u307e\u3059\u3002\u306a\u3089\u3070\u3001\u8a71\u306f\u7c21\u5358\u3067\u3059\u3002\u306f\u3044\u3001NewSQL\u306fCAP\u5b9a\u7406\u306e\u58c1\u3092\u4e57\u308a\u8d8a\u3048\u3066\u3044\u307e\u305b\u3093\u3002\u3081\u3067\u305f\u3057\u3081\u3067\u305f\u3057\u3002<\/p>\n

\u3068\u3044\u3046\u308f\u3051\u306b\u306f\u3044\u304b\u306a\u3044\u306e\u3067\u3001CAP\u5b9a\u7406\u306b\u3064\u3044\u3066\u3082\u3046\u5c11\u3057\u3060\u3051\u89e3\u8aac\u3057\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002\u30d6\u30ea\u30e5\u30ef\u30fc\u3055\u3093\u304c\u300c\u5206\u6563\u30b7\u30b9\u30c6\u30e0\u3067Consistency\uff08\u4e00\u8cab\u6027\uff09\u3001Availability \uff08\u53ef\u7528\u6027\uff09\u3001Partition-tolerance \uff08\u5206\u65ad\u8010\u6027\uff09\u306e3\u3064\u3092\u540c\u6642\u306b\u63d0\u4f9b\u3067\u304d\u306a\u3044\u300d\u3068\u65ad\u8a00\u3057\u305f\u306e\u3060\u304b\u3089\u3001\u3067\u304d\u306a\u3044\u3082\u306e\u306f\u3067\u304d\u306a\u3044\u306e\u3067\u3059\u3002\u30d6\u30ea\u30e5\u30ef\u30fc\u3055\u3093\u3082\u6c7a\u3057\u3066\u9154\u3063\u305f\u52e2\u3044\u3067\u8a00\u3063\u305f\u308f\u3051\u3067\u306f\u306a\u304f\u3001\u7814\u7a76\u6210\u679c\u3068\u3057\u3066\u767a\u8868\u3057\u305f\u306e\u3060\u3057\u3001NoSQL\u3068NewSQL\u306e\u4e21\u8005\u3082\u305d\u3053\u3092\u8986\u305d\u3046\u3068\u306f\u3057\u3066\u3044\u307e\u305b\u3093\u3002<\/p>\n

\u8986\u3059\u3069\u3053\u308d\u304b\u3001\u5fc5\u6b7b\u3067\u59a5\u5354\u70b9\u3092\u63a2\u3063\u3066\u3044\u307e\u3059\u3002\u3053\u306e3\u3064\u306e\u3046\u3061\u306e2\u3064\u3057\u304b\u63d0\u4f9b\u3067\u304d\u306a\u3044\u306e\u306a\u3089\u3001\u3055\u3066\u3001\u3069\u308c\u3092\u6368\u3066\u308b\u304b\u3001\u3068\u30021\u3064\u72a0\u7272\u306b\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u306e\u306a\u3089\u3001\u307e\u305aPartition-tolerance\u306f\u6368\u3066\u3089\u308c\u307e\u305b\u3093\u3002\u8907\u6570\u30ce\u30fc\u30c9\u306b\u307e\u305f\u304c\u308b\u30b5\u30fc\u30d0\u30fc\u304c\u3001\u30ce\u30fc\u30c9\u9593\u306e\u9023\u7d61\u304c\u9014\u7d76\u3048\u305f\u3089\u3082\u3046\u6a5f\u80fd\u3057\u306a\u3044\u3001\u306a\u3093\u3066\u3053\u3068\u306f\u8a31\u3055\u308c\u307e\u305b\u3093\u3002\u305d\u308c\u304c\u8a31\u3055\u308c\u308b\u306a\u3089\u3001\u305d\u3082\u305d\u3082\u5206\u6563\u3059\u3079\u304d\u3067\u306f\u306a\u304b\u3063\u305f\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002\u305d\u3093\u306a\u3053\u3068\u3067\u3078\u3053\u305f\u308c\u308b\u306a\u3089\u3001\u6700\u521d\u304b\u30891\u30ce\u30fc\u30c9\u3067\u8cab\u3051\uff01\u3068\u661f\u4e00\u5fb9\u306b\u5353\u88b1\u53f0\u8fd4\u3057\u3055\u308c\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n

\u3060\u304b\u3089\u3001\u5206\u6563\u30b7\u30b9\u30c6\u30e0\u306bPartition-tolerance\u306f\u4e0d\u53ef\u6b20\u3067\u3059\u3002<\/p>\n

\u3067\u306f\u3001Consistency\u3068Availability\u306e\u3069\u3061\u3089\u3092\u6368\u3066\u308b\u306e\u304b\uff1f<\/p>\n

\u305d\u308c\u306a\u3089Consistency\u3067\u3057\u3087\u3046\u3002\u3060\u3063\u3066\u3001\u30af\u30e9\u30a6\u30c9\u6642\u4ee3\u306b\u53ef\u7528\u6027\u306f\u6368\u3066\u3089\u308c\u306a\u3044\u3057\u3001\u305d\u308c\u306b\u6628\u4eca\u306f\u591a\u69d8\u6027\u306e\u6642\u4ee3\u3067\u3059\u3002\u5341\u4eba\u5341\u8272\u3001\u8907\u6570\u306e\u898b\u89e3\u304c\u3042\u3063\u3066\u7136\u308b\u3079\u304d\u3067\u3001\u6700\u7d42\u7684\u306b\u4e00\u81f4\u3059\u308c\u3070\u305d\u308c\u3067\u826f\u3044\u306e\u3067\u3059\u3002\u4eba\u306f\u305d\u308c\u3092Eventual Consistency\uff08\u7d50\u679c\u6574\u5408\u6027\uff09\u3068\u547c\u3073\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u3001\u30bd\u30fc\u30b7\u30e3\u30eb\u30e1\u30c7\u30a3\u30a2\u306a\u3069\u3001\u81a8\u5927\u306a\u30c7\u30fc\u30bf\u3092\u51e6\u7406\u3059\u308b\u305f\u3081\u306b\u5206\u6563\u30b7\u30b9\u30c6\u30e0\u306b\u3088\u308b\u62e1\u5f35\u6027\u306f\u91cd\u8981\u3060\u3057\u3001\u53ef\u7528\u6027\u3082\u6368\u3066\u3089\u308c\u306a\u3044\u3051\u3069\u3001\u540c\u6642\u9032\u884c\u306e\u4e00\u8cab\u6027\u306b\u306f\u30e6\u30fc\u30b6\u30fc\u306f\u6c17\u4ed8\u304d\u3082\u3057\u307e\u305b\u3093\u3002\u305d\u3046\u3001\u7d50\u679c\u7684\u306b\u4e00\u8cab\u6027\u304c\u4fdd\u305f\u308c\u3066\u3044\u308c\u3070\u3001\u9014\u4e2d\u306e\u4e0d\u5099\u306f\u30d0\u30ec\u306a\u3044\u306e\u3067\u3059\u3002<\/p>\n

\u306a\u3093\u3060\u3001\u30d0\u30ec\u306a\u3044\u306a\u3089\u3001\u3044\u3044\u3084\u30fb\u30fb\u30fb<\/p>\n

\u3068\u3044\u3046\u554f\u984c\u3067\u306f\u306a\u304f\u3001\u91cd\u8981\u6027\u306e\u554f\u984c\u3067\u3059\u3002\u5225\u306b\u30ba\u30eb\u3059\u308b\u306e\u3067\u306f\u306a\u304f\u3001Consistency\u306e\u512a\u5148\u9806\u4f4d\u3092\u4ed6\u306e2\u3064\u3088\u308a\u4e0b\u3052\u305f\u3060\u3051\u3067\u3059\u3002NoSQL\u3092\u8cac\u3081\u306a\u3044\u3067\u3042\u3052\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n

\u3067\u3082\u3001Availability\u3092Consistency\u3088\u308a\u512a\u5148\u3057\u305f\u306f\u3044\u3044\u3051\u3069\u3001\u305d\u308c\u3067Availability\u306f\u5b8c\u5168\u306a\u306e\uff1f\u3068\u554f\u308f\u308c\u305f\u3089\u3001NoSQL\u306f\u4f55\u3068\u7b54\u3048\u308b\u3067\u3057\u3087\u3046\u304b\u3002\u512a\u79c0\u306aNoSQL\u30b7\u30b9\u30c6\u30e0\u306f\u3001\u300c\u3082\u3061\u308d\u3093\u3001\u30d5\u30a1\u30a4\u30d6 \u30ca\u30a4\u30f3\u30ba\uff08five nines\uff09\u306eHA\uff08\u9ad8\u53ef\u7528\u6027\uff09\u3055\uff01\u300d\u3068\u80f8\u3092\u5f35\u3063\u3066\u7b54\u3048\u308b\u3067\u3057\u3087\u3046\u3002\u3064\u307e\u308a99.999%\u3001\u3053\u308c\u306f\u4e00\u5e74\u9593\u306e\u30c0\u30a6\u30f3\u30bf\u30a4\u30e0\u304c5\u5206\u534a\u3092\u5207\u308b\u512a\u79c0\u3055\u3067\u3059\u3002\u30b7\u30b9\u30c6\u30e0\u306e\u958b\u767a\u8005\u3082\u904b\u7528\u8005\u3082\u5341\u5206\u6e80\u8db3\u3059\u308b\u6570\u5b57\u3067\u3001\u8ab0\u3082\u306f\u306a\u304b\u3089100\uff05\u306a\u3069\u671f\u5f85\u3057\u3066\u3044\u307e\u305b\u3093\u3002<\/p>\n

\u3048\u3001\u4eca\u3001\u4f55\u3068\u30fb\u30fb\u30fb\uff1f<\/p>\n

\u512a\u5148\u9806\u4f4d\u3092\u4e0b\u3052\u3089\u308c\u305fConsistency\u306f\u304d\u3063\u3068\u5516\u7136\u3068\u3057\u3066\u3001\u8033\u3092\u7591\u3063\u3066\u3044\u308b\u9055\u3044\u3042\u308a\u307e\u305b\u3093\u3002100%\u3058\u3083\u306a\u3044\u306e\uff1f \u3058\u3083\u3042\u79c1\u3092\u6368\u3066\u305f\u306e\u306f\u4e00\u4f53\u4f55\u306e\u305f\u3081\uff1f \u3069\u3046\u305b100%\u3058\u3083\u306a\u3044\u306e\u306a\u3089\u3001\u30d1\u30fc\u30bb\u30f3\u30c6\u30fc\u30b8\u3092\u5c11\u3057\u4e0b\u3052\u3066\u3001\u79c1\u306e100%\u3092\u76ee\u6307\u3057\u305f\u3089\u3044\u3044\u3058\u3083\u306a\u3044\u30fb\u30fb\u30fb<\/p>\n

\u81f3\u6975\u3054\u3082\u3063\u3068\u3082\u3067\u3059\u3002\u306f\u306a\u304b\u3089\u5b8c\u5168\u306aAvailability\u3092\u8ae6\u3081\u3066\u3044\u308b\u306e\u306a\u3089\u3001\u5b8c\u5168\u306aConsistency\u3092\u76ee\u6307\u3057\u3066\u3001\u3069\u308c\u3060\u3051Availability\u3092\u4e0b\u3052\u305a\u306b\u6e08\u3080\u306e\u304b\u306b\u6311\u6226\u3057\u305f\u307b\u3046\u304c\u7406\u306b\u304b\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u7406\u306b\u304b\u306a\u3063\u3066\u3044\u308b\u3060\u3051\u3067\u306a\u304f\u3001\u305d\u308c\u3067OLTP\uff08\u30aa\u30f3\u30e9\u30a4\u30f3 \u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u51e6\u7406\uff09\u3082\u30b5\u30dd\u30fc\u30c8\u3067\u304d\u308b\u306e\u3067\u3059\u3002<\/p>\n

\u306f\u3044\u3001\u3053\u3046\u3084\u3063\u3066\u751f\u307e\u308c\u305f\u306e\u304cNewSQL\u3067\u3057\u305f\u3002NewSQL\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306f\u3001\u30b9\u30b1\u30fc\u30eb\u30a2\u30a6\u30c8\u53ef\u80fd\u306a\u5206\u6563\u30b7\u30b9\u30c6\u30e0\u3067OLTP\u3092\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u3068\u3044\u3046\u30cb\u30fc\u30ba\u9762\u3060\u3051\u3067\u306a\u304f\u3001CAP\u5b9a\u7406\u306e\u59a5\u5354\u3092\u3067\u304d\u308b\u3060\u3051\u5c0f\u3055\u304f\u3059\u308b\u89b3\u70b9\u304b\u3089\u3082\u3001\u30af\u30e9\u30a6\u30c9\u6642\u4ee3\u306e\u7533\u3057\u5b50\u3068\u3057\u3066\u3068\u3057\u3066\u751f\u307e\u308c\u308b\u3079\u304f\u3057\u3066\u751f\u307e\u308c\u305f\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306a\u306e\u3067\u3059\u3002\u3081\u3067\u305f\u3057\u3081\u3067\u305f\u3057\u3002<\/p>\n

\u6b21\u56de\u306f\u3001NoSQL\u304c\u3069\u3046\u3084\u3063\u3066Consistency\u3092\u78ba\u7acb\u3057\u305f\u304b\u306b\u3064\u3044\u3066\u66f8\u304f\u304b\u306a\uff1f \u3044\u3084\u66f8\u304b\u306a\u3044\u304b\u306a\uff1f \u307e\u3001\u3061\u3087\u3063\u3068\u899a\u609f\u306f\u3057\u3066\u304a\u3051\u3002<\/p>\n

\u00a0<\/p>\n

\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"

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