\u3068\u3042\u308b\u65e5\u3001MySQL\u306b\u3066\u30af\u30a8\u30ea\u304c\u6e9c\u307e\u308b\u4e8b\u8c61\u304c\u767a\u751f\u3002<\/p>\n
\u3046\u30fc\u3093\u3001\u30b9\u30ed\u30fc\u30af\u30a8\u30ea\u306b\u3082\u7d50\u69cb\u51fa\u529b\u3055\u308c\u3066\u304a\u308a\u3001INDEX\u306b\u3082\u539f\u56e0\u304c\u3042\u308b\u3088\u3046\u3060\u304c\u3001
\n\u30c7\u30fc\u30bf\u4ef6\u6570\u304c\u305d\u3053\u307e\u3067\u591a\u304f\u306a\u3044\u306e\u3067\u3001\u4ed6\u306b\u3082\u539f\u56e0\u304c\u3042\u308a\u305d\u3046\u3000\u3068\u3044\u3046\u3053\u3068\u3067\u8abf\u67fb\u3092\u7d9a\u884c\u3002<\/p>\n
\u300cSHOW GLOBAL STATUS \\G\u300d\u306b\u3066MySQL\u306e\u5404\u7a2e\u30b9\u30c6\u30fc\u30bf\u30b9\u60c5\u5831\u3092\u78ba\u8a8d\u3057\u305f\u3068\u3053\u308d\u3001
\nOpened_tables\u306e\u5024\u304c\u5927\u5909\u306a\u3053\u3068\u306b\u3002\u3002\u3002\u3002<\/p>\n
mysql> SHOW GLOBAL STATUS LIKE 'Opened_tables';
\n+---------------+----------+
\n| Variable_name | Value |
\n+---------------+----------+
\n| Opened_tables | 4644624 |
\n+---------------+----------+<\/p>\n
table_open_cache\u5024\u304c\u5c0f\u3055\u304b\u3063\u305f\u3053\u3068\u306b\u3088\u308a\u3001\u30c6\u30fc\u30d6\u30eb\u30ad\u30e3\u30c3\u30b7\u30e5\u304c\u3046\u307e\u304f\u4f7f\u308f\u308c\u3066\u3044\u306a\u3044\u3053\u3068\u3082\u539f\u56e0\u3067\u3057\u305f\u3002OS\u306e\u30d5\u30a1\u30a4\u30eb\u30c7\u30a3\u30b9\u30af\u30ea\u30d7\u30bf\u306e\u4e0a\u9650\u3000\u3068\u3000table_open_cache\u5024\u3092\u5927\u304d\u304f\u3057\u3001\u30af\u30a8\u30ea\u306e\u6ede\u7559\u3082\u89e3\u6d88\u3055\u308c\u307e\u3057\u305f\u3002
\n\u3081\u3067\u305f\u3057\u3001\u3081\u3067\u305f\u3057\u3002<\/p>\n
\u4e0b\u8a18\u3001table_open_cache\u306b\u3064\u3044\u3066\u3001\u307e\u3068\u3081\u307e\u3059\u3002<\/p>\n
\u3010table_open_cache\u3011<\/p>\n
\u25a0\u8aac\u660e
\n\u30fb\u30c6\u30fc\u30d6\u30eb\u30ad\u30e3\u30c3\u30b7\u30e5\u306b\u4fdd\u6301\u3067\u304d\u308b\u4e0a\u9650\u5024\u3002
\n\u25a0\u6ce8\u610f\u4e8b\u9805
\n\u30fbOS\u306e\u30d5\u30a1\u30a4\u30eb\u30c7\u30a3\u30b9\u30af\u30ea\u30d7\u30bf\u306e\u4e0a\u9650\u306b\u3082\u95a2\u4fc2\u3057\u307e\u3059\u3002
\n\u30fbmax_connections\u3068\u95a2\u4fc2\u3059\u308b\u3002
\n\u30fb\u8a2d\u5b9a\u5024\u3092\u5927\u304d\u304f\u3059\u308b\u3068\u4f7f\u7528\u30e1\u30e2\u30ea\u91cf\u3082\u5897\u3048\u308b\u3002
\n\u30fbMyISAM\u30b9\u30c8\u30ec\u30fc\u30b8\u30a8\u30f3\u30b8\u30f3\u3067\u306f1\u3064\u306e\u30c6\u30fc\u30d6\u30eb\u3054\u3068\u306b2\u3064\u306e\u30d5\u30a1\u30a4\u30eb\u30c7\u30a3\u30b9\u30af\u30ea\u30d7\u30bf\u304c\u5fc5\u8981\u3002
\n\u25a0\u30c1\u30e5\u30fc\u30cb\u30f3\u30b0\u30dd\u30a4\u30f3\u30c8<\/p>\n
\u203b\u300ctable_open_cache\u300d\u306e\u5024\u304c\u5c0f\u3055\u3044\u3068\u3000\u65b0\u305f\u306b\u30aa\u30fc\u30d7\u30f3\u3059\u308b\u30c6\u30fc\u30d6\u30eb\u306e\u6570\u304c\u5897\u3048\u308b\u306e\u3067\u3000\u300cOpened_tables\u300d\u306e\u5024\u304c\u5897\u3048\u307e\u3059\u3002<\/p>\n
\u21d2\u3000\u300cOpened_tables\u300d\u306e\u5024\u304c\u5927\u304d\u3044\u5834\u5408\u306f\u3001table_open_cache\u306e\u5024\u3092\u5897\u3084\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n
\u8a2d\u5b9a\u3059\u308b\u63a8\u5968\u5024\u3000\uff1a\u3000max_connections * 1\u30af\u30a8\u30ea\u3067\u4f7f\u7528\u3059\u308b\u6700\u5927\u30c6\u30fc\u30d6\u30eb\u6570<\/p>\n
\u203b\u300ctable_open_cache\u300d\u306e\u5024\u3092\u5909\u66f4\u3059\u308b\u969b\u306f\u3001\u4e0b\u8a18\u306b\u554f\u984c\u304c\u306a\u3044\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n
\u30fb\u30e1\u30e2\u30ea\u306b\u7a7a\u304d\u304c\u3042\u308b\u3053\u3068\u3002<\/p>\n
\u30fbOS\u306e\u30d5\u30a1\u30a4\u30eb\u30c7\u30a3\u30b9\u30af\u30ea\u30d7\u30bf\u306e\u4e0a\u9650\u306b\u554f\u984c\u304c\u306a\u3044\u3053\u3068\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u3068\u3042\u308b\u65e5\u3001MySQL\u306b\u3066\u30af\u30a8\u30ea\u304c\u6e9c\u307e\u308b\u4e8b\u8c61\u304c\u767a\u751f\u3002 \u3046\u30fc\u3093\u3001\u30b9\u30ed\u30fc\u30af\u30a8\u30ea\u306b\u3082\u7d50\u69cb\u51fa\u529b\u3055\u308c\u3066\u304a\u308a\u3001INDEX\u306b\u3082\u539f\u56e0\u304c\u3042\u308b\u3088\u3046\u3060\u304c\u3001 \u30c7\u30fc\u30bf\u4ef6\u6570\u304c\u305d\u3053\u307e\u3067\u591a\u304f\u306a\u3044\u306e\u3067\u3001\u4ed6\u306b\u3082\u539f\u56e0\u304c\u3042\u308a\u305d\u3046\u3000\u3068\u3044\u3046\u3053\u3068\u3067\u8abf\u67fb\u3092\u7d9a\u884c\u3002 \u300cSH…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_locale":"ja","_original_post":"10014","footnotes":""},"categories":[24],"tags":[],"class_list":{"0":"post-10014","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-mysql","7":"ja"},"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.skyarch.net\/blog\/wp-json\/wp\/v2\/posts\/10014","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.skyarch.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.skyarch.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.skyarch.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.skyarch.net\/blog\/wp-json\/wp\/v2\/comments?post=10014"}],"version-history":[{"count":7,"href":"https:\/\/www.skyarch.net\/blog\/wp-json\/wp\/v2\/posts\/10014\/revisions"}],"predecessor-version":[{"id":10021,"href":"https:\/\/www.skyarch.net\/blog\/wp-json\/wp\/v2\/posts\/10014\/revisions\/10021"}],"wp:attachment":[{"href":"https:\/\/www.skyarch.net\/blog\/wp-json\/wp\/v2\/media?parent=10014"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.skyarch.net\/blog\/wp-json\/wp\/v2\/categories?post=10014"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.skyarch.net\/blog\/wp-json\/wp\/v2\/tags?post=10014"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}