{"id":476737,"date":"2023-08-09T07:35:16","date_gmt":"2023-08-09T07:35:16","guid":{"rendered":""},"modified":"2023-09-05T11:13:20","modified_gmt":"2023-09-05T11:13:20","slug":"database-replication","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/jp\/wiki\/database-replication\/","title":{"rendered":"\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u30ec\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3"},"content":{"rendered":"<p>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9 \u30ec\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306f\u3001\u5206\u6563\u30b3\u30f3\u30d4\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u306b\u304a\u3051\u308b\u91cd\u8981\u306a\u8981\u7d20\u3067\u3042\u308a\u30011 \u3064\u306e\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9 (\u30de\u30b9\u30bf\u30fc) \u304b\u3089 1 \u3064\u4ee5\u4e0a\u306e\u4ed6\u306e\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9 (\u30ec\u30d7\u30ea\u30ab\u307e\u305f\u306f\u30b9\u30ec\u30fc\u30d6) 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\u304c\u767a\u751f\u3059\u308b\u3068\u3001\u30b9\u30ec\u30fc\u30d6\u306b\u30ec\u30d7\u30ea\u30b1\u30fc\u30c8\u3055\u308c\u307e\u3059\u3002<\/li>\n<li><strong>\u30de\u30fc\u30b8\u30ec\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3<\/strong>: \u3053\u306e\u30bf\u30a4\u30d7\u306b\u306f\u3001\u30de\u30b9\u30bf\u30fc \u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3068\u30b9\u30ec\u30fc\u30d6 \u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u4e21\u65b9\u306e\u5909\u66f4\u304c\u8ffd\u8de1\u3055\u308c\u3001\u30de\u30fc\u30b8\u3055\u308c\u308b\u53cc\u65b9\u5411\u30ec\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u304c\u542b\u307e\u308c\u307e\u3059\u3002<\/li>\n<\/ol>\n<h2>\u5b9f\u8df5\u7684\u306a\u30b7\u30ca\u30ea\u30aa: \u30c7\u30fc\u30bf\u30d9\u30fc\u30b9 \u30ec\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u4f7f\u7528\u6cd5\u3001\u554f\u984c\u70b9\u3001\u304a\u3088\u3073\u89e3\u6c7a\u7b56<\/h2>\n<p>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9 \u30ec\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306f\u3001\u30c7\u30fc\u30bf \u30a6\u30a7\u30a2\u30cf\u30a6\u30b8\u30f3\u30b0\u3001\u30aa\u30f3\u30e9\u30a4\u30f3 \u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u51e6\u7406 (OLTP)\u3001\u5206\u6563\u30b7\u30b9\u30c6\u30e0\u3001\u30af\u30e9\u30a6\u30c9 \u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3067\u5e83\u304f\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u307e\u305f\u3001\u707d\u5bb3\u5fa9\u65e7\u30b7\u30ca\u30ea\u30aa\u3067\u30c7\u30fc\u30bf\u306e\u53ef\u7528\u6027\u3092\u78ba\u4fdd\u3059\u308b\u305f\u3081\u306b\u3082\u91cd\u8981\u3067\u3059\u3002<\/p>\n<p>\u30ec\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u3088\u308a\u30c7\u30fc\u30bf\u306e\u30a2\u30af\u30bb\u30b9\u6027\u3068\u4fe1\u983c\u6027\u304c\u5411\u4e0a\u3057\u307e\u3059\u304c\u3001\u30c7\u30fc\u30bf\u306e\u4e00\u8cab\u6027\u306e\u554f\u984c\u3001\u30de\u30eb\u30c1\u30de\u30b9\u30bf\u30fc \u30ec\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u306e\u7af6\u5408\u89e3\u6c7a\u3001\u8907\u6570\u306e\u30ec\u30d7\u30ea\u30ab\u7ba1\u7406\u306e\u8907\u96d1\u3055\u306e\u5897\u52a0\u306a\u3069\u3001\u3044\u304f\u3064\u304b\u306e\u8ab2\u984c\u304c\u751f\u3058\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u554f\u984c\u306f\u901a\u5e38\u3001\u614e\u91cd\u306a\u30b7\u30b9\u30c6\u30e0\u8a2d\u8a08\u3001\u540c\u6642\u5b9f\u884c\u5236\u5fa1\u30e1\u30ab\u30cb\u30ba\u30e0\u306e\u5b9f\u88c5\u3001\u304a\u3088\u3073\u9ad8\u5ea6\u306a\u7af6\u5408\u89e3\u6c7a\u6226\u7565\u306e\u4f7f\u7528\u306b\u3088\u3063\u3066\u8efd\u6e1b\u3055\u308c\u307e\u3059\u3002<\/p>\n<h2>\u6bd4\u8f03\u5206\u6790: \u7279\u5fb4\u3068\u985e\u4f3c\u6982\u5ff5\u3068\u306e\u6bd4\u8f03<\/h2>\n<table>\n<thead>\n<tr>\n<th>\u30b3\u30f3\u30bb\u30d7\u30c8<\/th>\n<th>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u30ec\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3<\/th>\n<th>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u30b7\u30e3\u30fc\u30c7\u30a3\u30f3\u30b0<\/th>\n<th>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u30d0\u30c3\u30af\u30a2\u30c3\u30d7<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u76ee\u7684<\/td>\n<td>\u30c7\u30fc\u30bf\u306e\u53ef\u7528\u6027\u3068\u30b7\u30b9\u30c6\u30e0\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5411\u4e0a\u3055\u305b\u308b<\/td>\n<td>\u8907\u6570\u306e\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u30c7\u30fc\u30bf\u3092\u5206\u6563\u3057\u3066\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5411\u4e0a\u3055\u305b\u308b<\/td>\n<td>\u30ea\u30ab\u30d0\u30ea\u306e\u305f\u3081\u306b\u30c7\u30fc\u30bf\u3092\u4fdd\u5b58\u3059\u308b<\/td>\n<\/tr>\n<tr>\n<td>\u30a2\u30d7\u30ed\u30fc\u30c1<\/td>\n<td>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u9593\u3067\u540c\u3058\u30c7\u30fc\u30bf\u3092\u8907\u88fd\u3059\u308b<\/td>\n<td>\u5927\u898f\u6a21\u306a\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3092\u5c0f\u3055\u306a\u90e8\u5206\u306b\u5206\u5272\u3059\u308b<\/td>\n<td>\u5fa9\u5143\u7528\u306e\u30c7\u30fc\u30bf\u306e\u30b3\u30d4\u30fc\u3092\u4f5c\u6210\u3059\u308b<\/td>\n<\/tr>\n<tr>\n<td>\u8907\u96d1<\/td>\n<td>\u4e2d\u3001\u30c7\u30fc\u30bf\u306e\u4e00\u8cab\u6027\u306e\u7ba1\u7406\u304c\u5fc5\u8981<\/td>\n<td>\u9ad8\u3001\u30c7\u30fc\u30bf\u306e\u614e\u91cd\u306a\u5206\u5272\u304c\u5fc5\u8981<\/td>\n<td>\u4f4e\u3001\u7d44\u307f\u8fbc\u307f\u306e\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u6a5f\u80fd\u3092\u4f7f\u7528\u3057\u3066\u5b9f\u73fe\u53ef\u80fd<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\u4eca\u5f8c\u306e\u5c55\u671b: \u30c7\u30fc\u30bf\u30d9\u30fc\u30b9 \u30ec\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u304a\u3051\u308b\u5c06\u6765\u306e\u5c55\u671b\u3068\u30c6\u30af\u30ce\u30ed\u30b8\u30fc<\/h2>\n<p>\u30af\u30e9\u30a6\u30c9 \u30b3\u30f3\u30d4\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u3068\u5206\u6563\u30b7\u30b9\u30c6\u30e0\u306e\u51fa\u73fe\u306b\u3088\u308a\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9 \u30ec\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306f\u9032\u5316\u3057\u7d9a\u3051\u3066\u3044\u307e\u3059\u3002\u5c06\u6765\u306e\u5c55\u671b\u306b\u306f\u3001\u77ac\u6642\u306e\u30c7\u30fc\u30bf\u53ef\u7528\u6027\u3092\u4fdd\u8a3c\u3059\u308b\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0 \u30ec\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3 \u30c6\u30af\u30ce\u30ed\u30b8\u30fc\u3001\u30de\u30eb\u30c1\u30de\u30b9\u30bf\u30fc \u30ec\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3 \u30b7\u30b9\u30c6\u30e0\u306b\u304a\u3051\u308b\u9ad8\u5ea6\u306a\u7af6\u5408\u89e3\u6c7a\u6226\u7565\u3001\u30ec\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3 \u30d7\u30ed\u30bb\u30b9\u3092\u7ba1\u7406\u304a\u3088\u3073\u6700\u9069\u5316\u3059\u308b\u305f\u3081\u306e\u9ad8\u5ea6\u306a\u6a5f\u68b0\u5b66\u7fd2\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u304c\u542b\u307e\u308c\u307e\u3059\u3002\u30d6\u30ed\u30c3\u30af\u30c1\u30a7\u30fc\u30f3\u6280\u8853\u306e\u53f0\u982d\u306b\u3088\u308a\u3001\u5206\u6563\u578b\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9 \u30ec\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u5bfe\u3059\u308b\u72ec\u81ea\u306e\u30a2\u30d7\u30ed\u30fc\u30c1\u3082\u63d0\u4f9b\u3055\u308c\u307e\u3059\u3002<\/p>\n<h2>\u30d7\u30ed\u30ad\u30b7\u3068\u30ec\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3: \u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u3068\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9 \u30ec\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u76f8\u4e92\u4f5c\u7528<\/h2>\n<p>\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306f\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9 \u30ec\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u304a\u3044\u3066\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3068\u30b5\u30fc\u30d0\u30fc\u9593\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u7ba1\u7406\u3057\u3001\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u3042\u307e\u308a\u4f7f\u7528\u3055\u308c\u3066\u3044\u306a\u3044\u30b5\u30fc\u30d0\u30fc\u306b\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3059\u308b\u3053\u3068\u3067\u8ca0\u8377\u3092\u5206\u6563\u3057\u3001\u8ffd\u52a0\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5c64\u3092\u63d0\u4f9b\u3067\u304d\u307e\u3059\u3002\u307e\u305f\u3001\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u6700\u3082\u8fd1\u3044\u30b5\u30fc\u30d0\u30fc\u306b\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3059\u308b\u3053\u3068\u3067\u3001\u5730\u7406\u7684\u306b\u5206\u6563\u3055\u308c\u305f\u30ec\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u7ba1\u7406\u3059\u308b\u5f79\u5272\u3082\u679c\u305f\u3057\u3001\u305d\u308c\u306b\u3088\u3063\u3066\u5f85\u3061\u6642\u9593\u3092\u77ed\u7e2e\u3067\u304d\u307e\u3059\u3002<\/p>\n<h2>\u95a2\u9023\u30ea\u30f3\u30af<\/h2>\n<ol>\n<li><a href=\"http:\/\/www.cs.ubc.ca\/~rlawrenc\/research\/Papers\/icde2001.pdf\" target=\"_new\" rel=\"noopener nofollow\">\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9 \u30ec\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3 \u30c6\u30af\u30cb\u30c3\u30af: 3 \u3064\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc\u306b\u3088\u308b\u5206\u985e \u2013 Ramon Lawrence\u3001\u30d6\u30ea\u30c6\u30a3\u30c3\u30b7\u30e5 \u30b3\u30ed\u30f3\u30d3\u30a2\u5927\u5b66<\/a><\/li>\n<li><a href=\"http:\/\/infolab.stanford.edu\/~ullman\/dscb.html\" target=\"_new\" rel=\"noopener nofollow\">\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9 \u30b7\u30b9\u30c6\u30e0: \u5b8c\u5168\u306a\u672c \u2013 H. Garcia-Molina\u3001J. Ullman\u3001\u304a\u3088\u3073 J. Widom<\/a><\/li>\n<li><a href=\"https:\/\/ieeexplore.ieee.org\/document\/6322509\" target=\"_new\" rel=\"noopener nofollow\">\u5206\u6563\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9 \u30b7\u30b9\u30c6\u30e0\u306b\u304a\u3051\u308b\u30ec\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3 \u2013 K. Eswaran\u3001IBM Research<\/a><\/li>\n<\/ol>\n<p>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9 \u30ec\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u5fae\u5999\u306a\u9055\u3044\u3092\u7406\u89e3\u3057\u3001\u305d\u306e\u6a5f\u80fd\u3092\u52b9\u679c\u7684\u306b\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u7d44\u7e54\u306f\u30c7\u30fc\u30bf\u7ba1\u7406\u6226\u7565\u3092\u5927\u5e45\u306b\u5f37\u5316\u3057\u3001\u30b7\u30b9\u30c6\u30e0\u5168\u4f53\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>","protected":false},"featured_media":476738,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-476737","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about <mark>Database Replication: Ensuring Data Availability and Consistency<\/mark>","faq_items":[{"question":"What is Database Replication?","answer":"<p>Database replication is a process of storing the same data on multiple machines or databases. It enhances accessibility, reduces data traffic, and maintains data consistency and reliability.<\/p>"},{"question":"What is the history of Database Replication?","answer":"<p>Database replication emerged in the 1980s with the rise of distributed systems. Initially used for backup and recovery solutions, it became a critical approach with the advent of distributed databases and client-server architectures in the 1990s. Early implementations were seen in systems like System R, INGRES, and Oracle.<\/p>"},{"question":"How does Database Replication work?","answer":"<p>Database replication starts with a master database that holds the original data. The data is then copied to the slave databases. The specific method of this process depends largely on the type of replication implemented: master-slave replication, multi-master replication, or peer-to-peer replication.<\/p>"},{"question":"What are the key features of Database Replication?","answer":"<p>The key features of database replication include improved data availability, load balancing, data protection, reduced latency, and the ability to isolate analytics workloads.<\/p>"},{"question":"What are the types of Database Replication?","answer":"<p>The three main types of database replication are snapshot replication, transactional replication, and merge replication.<\/p>"},{"question":"What are the uses and problems of Database Replication?","answer":"<p>Database replication is used extensively in data warehousing, online transaction processing, distributed systems, and cloud databases. Despite its benefits, it presents challenges such as data consistency issues, conflict resolution in multi-master replication, and increased complexity in managing multiple replicas.<\/p>"},{"question":"What are the future perspectives and technologies in Database Replication?","answer":"<p>Future perspectives include real-time replication technologies, sophisticated conflict resolution strategies in multi-master replication systems, and the use of machine learning algorithms to manage and optimize replication processes. The rise of blockchain technology also offers a unique approach to decentralized database replication.<\/p>"},{"question":"How can Proxy Servers be used with Database Replication?","answer":"<p>Proxy servers can manage requests between the client and the server, balance the load by redirecting requests to less busy servers, and provide an additional layer of security. They can also manage geographically distributed replication by redirecting requests to the nearest server, thereby reducing latency.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/wiki\/476737","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/types\/wiki"}],"version-history":[{"count":0,"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/wiki\/476737\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/media\/476738"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/media?parent=476737"}],"curies":[{"name":"\u3046\u30fc\u3093","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}