{"id":21179,"date":"2025-10-27T23:52:34","date_gmt":"2025-10-27T23:52:34","guid":{"rendered":"https:\/\/pokecon.jp\/job\/?p=21179"},"modified":"2025-10-27T23:52:34","modified_gmt":"2025-10-27T23:52:34","slug":"%e7%a2%ba%e7%8e%87%e7%9a%84%e3%83%87%e3%83%bc%e3%82%bf%e6%a7%8b%e9%80%a0%e3%82%92%e7%94%a8%e3%81%84%e3%81%9f-db-%e8%b2%a0%e8%8d%b7%e8%bb%bd%e6%b8%9b%e3%81%a8-valkey-%e3%81%a7%e3%81%ae%e5%ae%9f","status":"publish","type":"post","link":"https:\/\/pokecon.jp\/job\/21179\/","title":{"rendered":"\u78ba\u7387\u7684\u30c7\u30fc\u30bf\u69cb\u9020\u3092\u7528\u3044\u305f DB \u8ca0\u8377\u8efd\u6e1b\u3068 Valkey \u3067\u306e\u5b9f\u88c5"},"content":{"rendered":"\n<\/p>\n<div>\n<h2>\u306f\u3058\u3081\u306b<\/h2>\n<p>\u3053\u3093\u306b\u3061\u306f\u3002ABEMA \u306e\u5e83\u544a\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u958b\u767a\u30c1\u30fc\u30e0\u3067\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u3092\u62c5\u5f53\u3057\u3066\u3044\u308b\u6238\u7530\u670b\u82b1\u3067\u3059\u3002<\/p>\n<p>ABEMA \u3067\u306f\u30d1\u30fc\u30bd\u30ca\u30e9\u30a4\u30ba\u3057\u305f\u5e83\u544a\u914d\u4fe1\u304c\u3067\u304d\u308b\u305f\u3081\u3001\u300c\u30e6\u30fc\u30b6\u30fc \u00d7 \u5c5e\u6027\u300d\u304c\u30ad\u30fc\u3068\u306a\u308b\u9ad8\u30ab\u30fc\u30c7\u30a3\u30ca\u30ea\u30c6\u30a3\u306a\u30c7\u30fc\u30bf\u306b\u5bfe\u3059\u308b\u8aad\u307f\u66f8\u304d\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u304c\u5927\u91cf\u306b\u767a\u751f\u3057\u307e\u3059\u3002<br \/>\u307e\u305f\u5168\u3066\u306e\u30e6\u30fc\u30b6\u30fc\u304c\u5168\u3066\u306e\u5c5e\u6027\u3092\u6301\u3063\u3066\u3044\u308b\u308f\u3051\u3067\u306f\u306a\u3044\u306e\u3067\u3001\u30ea\u30af\u30a8\u30b9\u30c8\u306b\u5bfe\u3057\u3066\u5b9f\u969b\u306b\u30c7\u30fc\u30bf\u304c\u5b58\u5728\u3057\u306a\u3044\u3053\u3068\u304c\u591a\u304f\u3042\u308a\u307e\u3059\u3002<br \/>\u305d\u306e\u7d50\u679c\u3001\u8aad\u307f\u53d6\u308a\u306e\u30a2\u30af\u30bb\u30b9\u30d1\u30bf\u30fc\u30f3\u3068\u3057\u3066\u300c\u30ea\u30af\u30a8\u30b9\u30c8\u306e\u30ab\u30fc\u30c7\u30a3\u30ca\u30ea\u30c6\u30a3\u304c\u30c7\u30fc\u30bf\u306e\u30ab\u30fc\u30c7\u30a3\u30ca\u30ea\u30c6\u30a3\u3092\u5927\u304d\u304f\u4e0a\u56de\u308b\u300d\u72b6\u614b\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>ABEMA \u306e\u5e83\u544a\u914d\u4fe1\u30b5\u30fc\u30d0\u30fc\u306b\u306f\u3001\u3053\u306e\u3088\u3046\u306a\u6027\u8cea\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u304c\u30d4\u30fc\u30af\u6642\u306b\u306f\u6570\u5343\u304b\u3089\u6570\u4e07 RPS \u3067\u767a\u751f\u3057\u307e\u3059\u3002<br \/>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3078\u5927\u91cf\u306b\u30ea\u30af\u30a8\u30b9\u30c8\u304c\u767a\u751f\u3059\u308b\u3068\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u304c\u9ad8\u8ca0\u8377\u3068\u306a\u308a\u30b7\u30b9\u30c6\u30e0\u5168\u4f53\u306e\u30dc\u30c8\u30eb\u30cd\u30c3\u30af\u306b\u306a\u308a\u307e\u3059\u3002<br \/>\u3053\u308c\u3092\u9632\u3050\u305f\u3081\u306e\u4e00\u822c\u7684\u306a\u65b9\u6cd5\u3068\u3057\u3066\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u7528\u30c7\u30fc\u30bf\u30b9\u30c8\u30a2\u3092\u7528\u610f\u3057\u30ad\u30e3\u30c3\u30b7\u30e5\u30df\u30b9\u6642\u306e\u307f\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3078\u554f\u3044\u5408\u308f\u305b\u308b\u69cb\u6210\u304c\u63a1\u7528\u3055\u308c\u307e\u3059\u3002<br \/>\u3057\u304b\u3057\u3001\u4e0a\u3067\u8ff0\u3079\u305f\u30a2\u30af\u30bb\u30b9\u30d1\u30bf\u30fc\u30f3\u306e\u5834\u5408\u30ad\u30e3\u30c3\u30b7\u30e5\u30df\u30b9\u304c\u983b\u767a\u3057\u3066\u3057\u307e\u3044\u7d50\u5c40\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3078\u306e\u8ca0\u8377\u304c\u9ad8\u307e\u3063\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u72b6\u6cc1\u4e0b\u3067\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3078\u306e\u8ca0\u8377\u3092\u524a\u6e1b\u3059\u308b\u306b\u306f\u3001\u30c7\u30fc\u30bf\u306e\u66f8\u304d\u8fbc\u307f\u6642\u306b\u78ba\u7387\u7684\u30c7\u30fc\u30bf\u69cb\u9020\u3067\u3042\u308b Bloom Filter \u3092\u4f5c\u6210\u3057\u8aad\u307f\u53d6\u308a\u30ea\u30af\u30a8\u30b9\u30c8\u6642\u306b Bloom Filter \u3092\u7528\u3044\u3066\u4e8b\u524d\u306b\u30ad\u30fc\u306e\u5b58\u5728\u5224\u5b9a\u3092\u884c\u3046\u306e\u304c\u6709\u52b9\u3067\u3059\u3002<\/p>\n<p>\u672c\u8a18\u4e8b\u3067\u306f\u3001Bloom Filter \u306e\u6982\u8981\u3068 Valkey \u4e0a\u3067\u5b9f\u73fe\u3059\u308b\u5834\u5408\u306e\u5b9f\u8df5\u7684\u306a\u6d3b\u7528\u65b9\u6cd5\u306b\u3064\u3044\u3066\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n<h2>Bloom Filter \u3068\u306f<\/h2>\n<p>Bloom Filter \u306f\u300c\u3042\u308b\u30c7\u30fc\u30bf\u304c\u7279\u5b9a\u306e\u96c6\u5408\u306b\u542b\u307e\u308c\u308b\u304b\u300d\u3092\u5224\u5b9a\u3059\u308b\u305f\u3081\u306b\u5229\u7528\u3067\u304d\u308b\u30e1\u30e2\u30ea\u52b9\u7387\u306e\u826f\u3044\u78ba\u7387\u7684\u306a\u30c7\u30fc\u30bf\u69cb\u9020\u3067\u3059\u3002<br \/>\u901a\u5e38\u306f\u5b58\u5728\u5224\u5b9a\u3092\u884c\u3046\u306b\u306f\u3059\u3079\u3066\u306e\u30ad\u30fc\u3092\u4fdd\u6301\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u304c\u3001Bloom Filter \u3067\u306f\u56fa\u5b9a\u9577\u306e\u5c11\u306a\u3044\u30e1\u30e2\u30ea\u3067\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<br \/>\u4f8b\u3048\u3070\u30011,000 \u4e07\u4ef6\u306e\u30ad\u30fc\u306e\u5b58\u5728\u5224\u5b9a\u3092\u8aa4\u5dee\u7387 1% \u3067\u884c\u3046\u5834\u5408\u3001\u5fc5\u8981\u306a\u30e1\u30e2\u30ea\u306f\u308f\u305a\u304b\u6570\u5341 MB \u7a0b\u5ea6\u3067\u3059\u3002<br \/>\u540c\u3058\u30c7\u30fc\u30bf\u3092\u5168\u3066\u4fdd\u6301\u3059\u308b\u5834\u5408\u306f 1 \u30ec\u30b3\u30fc\u30c9 100byte \u3068\u3059\u308b\u3068 1 GB \u306e\u30e1\u30e2\u30ea\u304c\u5fc5\u8981\u306b\u306a\u308b\u305f\u3081\u3001\u6bd4\u8f03\u3059\u308b\u3068 100 \u500d\u8fd1\u304f\u30e1\u30e2\u30ea\u52b9\u7387\u304c\u826f\u3044\u3067\u3059\u3002<\/p>\n<p>\u305f\u3060\u3057\u3001\u78ba\u7387\u7684\u306a\u30c7\u30fc\u30bf\u69cb\u9020\u306a\u306e\u3067\u53b3\u5bc6\u306a\u7b54\u3048\u306f\u8fd4\u3055\u305a\u300c\u5b58\u5728\u3057\u306a\u3044\u3082\u306e\u3092\u5b58\u5728\u3059\u308b\u300d\u3068\u3057\u3066\u3057\u307e\u3046\u507d\u967d\u6027\u304c\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<br \/>\u4e00\u65b9\u3067\u300c\u5b58\u5728\u3059\u308b\u3082\u306e\u3092\u5b58\u5728\u3057\u306a\u3044\u300d\u3068\u3057\u3066\u3057\u307e\u3046\u507d\u9670\u6027\u306f\u8d77\u3053\u3089\u306a\u3044\u7279\u5fb4\u304c\u3042\u308a\u307e\u3059\u3002<br \/>\u305d\u306e\u305f\u3081\u3001\u5b58\u5728\u3057\u306a\u3044\u3082\u306e\u3092\u9664\u5916\u3059\u308b\u30d5\u30a3\u30eb\u30bf\u3068\u3057\u3066\u5b89\u5168\u306b\u4f7f\u3048\u307e\u3059\u3002<\/p>\n<h2>Bloom Filter \u306e\u4ed5\u7d44\u307f<\/h2>\n<p>Bloom Filter \u306e\u5b9f\u4f53\u306f\u30d3\u30c3\u30c8\u914d\u5217\u3067\u3001\u6700\u521d\u306f\u3059\u3079\u3066 0 \u306b\u521d\u671f\u5316\u3055\u308c\u3066\u3044\u307e\u3059\u3002<br \/>\u30ad\u30fc\u3092\u767b\u9332\u3059\u308b\u3068\u304d\u3084\u78ba\u8a8d\u3059\u308b\u6642\u306f\u3001\u8907\u6570\u306e\u30cf\u30c3\u30b7\u30e5\u95a2\u6570\u3092\u4f7f\u3063\u3066\u30d3\u30c3\u30c8\u914d\u5217\u306e\u7279\u5b9a\u4f4d\u7f6e\u3092\u66f4\u65b0\u30fb\u53c2\u7167\u3057\u307e\u3059\u3002<\/p>\n<h3>\u30ad\u30fc\u306e\u767b\u9332<\/h3>\n<p>Bloom Filter \u306b\u30ad\u30fc\u3092\u767b\u9332\u3059\u308b\u969b\u306f\u3001\u305d\u306e\u30ad\u30fc\u3092\u8907\u6570\u306e\u30cf\u30c3\u30b7\u30e5\u95a2\u6570\u306b\u901a\u3057\u3066\u305d\u308c\u305e\u308c\u306e\u7d50\u679c\u306b\u5bfe\u5fdc\u3059\u308b\u30d3\u30c3\u30c8\u3092 1 \u306b\u8a2d\u5b9a\u3057\u307e\u3059\u3002<\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter size-large wp-image-59595\" src=\"https:\/\/developers.cyberagent.co.jp\/blog\/wp-content\/uploads\/2025\/10\/bloom_filter_basic_add-1024x580.jpg\" alt=\"Bloom Filter\u3078\u306e\u30c7\u30fc\u30bf\u306e\u767b\u9332\u306e\u56f3\u89e3\" width=\"800\" height=\"453\" srcset=\"https:\/\/developers.cyberagent.co.jp\/blog\/wp-content\/uploads\/2025\/10\/bloom_filter_basic_add-1024x580.jpg 1024w, https:\/\/developers.cyberagent.co.jp\/blog\/wp-content\/uploads\/2025\/10\/bloom_filter_basic_add-300x170.jpg 300w, https:\/\/developers.cyberagent.co.jp\/blog\/wp-content\/uploads\/2025\/10\/bloom_filter_basic_add-768x435.jpg 768w, https:\/\/developers.cyberagent.co.jp\/blog\/wp-content\/uploads\/2025\/10\/bloom_filter_basic_add-1536x869.jpg 1536w, https:\/\/developers.cyberagent.co.jp\/blog\/wp-content\/uploads\/2025\/10\/bloom_filter_basic_add-2048x1159.jpg 2048w\" sizes=\"(max-width: 800px) 100vw, 800px\"\/><\/p>\n<p>\u4e0a\u306e\u56f3\u3067\u306f\u521d\u671f\u72b6\u614b\u306e Bloom Filter \u306b <code>Key1<\/code> \u3092\u767b\u9332\u3057\u3066\u3044\u307e\u3059\u3002<br \/>\u30cf\u30c3\u30b7\u30e5\u95a2\u6570 <code>h1<\/code> \u3068 <code>h2<\/code> \u306e\u51fa\u529b\u304c\u305d\u308c\u305e\u308c 2 \u3068 5 \u3060\u3063\u305f\u305f\u3081\u3001index 2 \u3068 5 \u306e\u30d3\u30c3\u30c8\u3092 1 \u306b\u8a2d\u5b9a\u3057\u307e\u3059\u3002<\/p>\n<h3>\u5b58\u5728\u78ba\u8a8d<\/h3>\n<p>\u7279\u5b9a\u306e\u30ad\u30fc\u304c\u767b\u9332\u3055\u308c\u3066\u3044\u308b\u304b\u78ba\u8a8d\u3057\u305f\u3044\u3068\u304d\u306f\u3001\u767b\u9332\u6642\u3068\u540c\u3058\u30cf\u30c3\u30b7\u30e5\u95a2\u6570\u3092\u4f7f\u3063\u3066\u5bfe\u5fdc\u3059\u308b\u30d3\u30c3\u30c8\u3092\u8abf\u3079\u307e\u3059\u3002<br \/>\u3082\u3057\u30d3\u30c3\u30c8\u306e\u4e2d\u306b 0 \u304c 1 \u3064\u3067\u3082\u542b\u307e\u308c\u3066\u3044\u308c\u3070\u3001\u305d\u306e\u30ad\u30fc\u306f Bloom Filter \u306b\u767b\u9332\u3055\u308c\u3066\u3044\u306a\u3044\u3068\u5224\u65ad\u3067\u304d\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-large wp-image-59596\" src=\"https:\/\/developers.cyberagent.co.jp\/blog\/wp-content\/uploads\/2025\/10\/bloom_filter_basic_exists-906x1024.png\" alt=\"Bloom Filter\u3092\u7528\u3044\u305f\u5024\u306e\u5b58\u5728\u78ba\u8a8d\u306e\u56f3\u89e3\" width=\"400\" height=\"904\"\/><\/p>\n<p>\u4e0a\u306e\u56f3\u3067\u306f\u767b\u9332\u3055\u308c\u3066\u3044\u306a\u3044<code>Key2<\/code> \u306e\u5b58\u5728\u78ba\u8a8d\u3092\u3057\u3066\u3044\u307e\u3059\u3002<br \/><code>Key2<\/code> \u306b\u5bfe\u3057\u3066\u30cf\u30c3\u30b7\u30e5\u95a2\u6570\u3092\u9069\u7528\u3059\u308b\u3068<code>h1(Key2)=5<\/code>, <code>h2(Key2)=6<\/code> \u306b\u306a\u308a\u307e\u3059\u3002<br \/>Bloom Filter \u5185\u306e index 5,6 \u306e\u30d3\u30c3\u30c8\u3092\u78ba\u8a8d\u3059\u308b\u3068\u3001index 6 \u304c 0 \u306a\u306e\u3067 <code>Key2<\/code> \u306f\u5b58\u5728\u3057\u306a\u3044\u3068\u5224\u65ad\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u4e00\u65b9\u3067\u3059\u3079\u3066\u306e\u30d3\u30c3\u30c8\u304c 1 \u3067\u3042\u3063\u3066\u3082\u5b9f\u969b\u306b\u5b58\u5728\u3059\u308b\u3068\u306f\u9650\u308a\u307e\u305b\u3093\u3002<br \/>\u5225\u306e\u30ad\u30fc\u306e\u767b\u9332\u306b\u3088\u3063\u3066\u305f\u307e\u305f\u307e\u540c\u3058\u30d3\u30c3\u30c8\u304c 1 \u306b\u306a\u308b\u5834\u5408\u304c\u3042\u308b\u305f\u3081\u3067\u3059\u3002<br \/>\u3053\u308c\u304c\u507d\u967d\u6027\u304c\u8d77\u304d\u308b\u7406\u7531\u3067\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-large wp-image-59597\" src=\"https:\/\/developers.cyberagent.co.jp\/blog\/wp-content\/uploads\/2025\/10\/bloom_filter_basic_false_positive-1024x596.jpg\" alt=\"Bloom Filter\u306e\u507d\u967d\u6027\u306e\u56f3\u89e3\" width=\"800\" height=\"466\" srcset=\"https:\/\/developers.cyberagent.co.jp\/blog\/wp-content\/uploads\/2025\/10\/bloom_filter_basic_false_positive-1024x596.jpg 1024w, https:\/\/developers.cyberagent.co.jp\/blog\/wp-content\/uploads\/2025\/10\/bloom_filter_basic_false_positive-300x175.jpg 300w, https:\/\/developers.cyberagent.co.jp\/blog\/wp-content\/uploads\/2025\/10\/bloom_filter_basic_false_positive-768x447.jpg 768w, https:\/\/developers.cyberagent.co.jp\/blog\/wp-content\/uploads\/2025\/10\/bloom_filter_basic_false_positive-1536x894.jpg 1536w, https:\/\/developers.cyberagent.co.jp\/blog\/wp-content\/uploads\/2025\/10\/bloom_filter_basic_false_positive-2048x1192.jpg 2048w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\"\/><\/p>\n<p>\u4e0a\u306e\u56f3\u3067\u306f\u3001<code>Key1<\/code> \u306b\u52a0\u3048\u3066 <code>Key3<\/code> \u3092\u767b\u9332\u3057\u305f\u5f8c <code>Key4<\/code> \u306e\u5b58\u5728\u3092\u78ba\u8a8d\u3057\u3066\u3044\u307e\u3059\u3002<br \/><code>Key4<\/code> \u306e\u30cf\u30c3\u30b7\u30e5\u7d50\u679c <code>h1(Key4)=8<\/code>, <code>h2(Key4)=2<\/code> \u306b\u5bfe\u5fdc\u3059\u308b\u30d3\u30c3\u30c8\u3092\u78ba\u8a8d\u3059\u308b\u3068\u3001 \u5076\u7136\u3069\u3061\u3089\u3082 1 \u306b\u306a\u3063\u3066\u3044\u305f\u305f\u3081<code>Key4<\/code> \u304c\u5b58\u5728\u3059\u308b\u3068\u8aa4\u3063\u3066\u5224\u65ad\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>\u4eca\u56de\u306e\u4f8b\u3067\u306f\u7c21\u5358\u306e\u305f\u3081\u30d3\u30c3\u30c8\u914d\u5217\u306e\u9577\u3055\u3092 10\u3001\u30cf\u30c3\u30b7\u30e5\u95a2\u6570\u306e\u6570\u3092 2 \u500b\u306b\u3057\u3066\u3044\u307e\u3059\u304c\u3001 \u5b9f\u969b\u306b Bloom Filter \u3092\u69cb\u7bc9\u3059\u308b\u969b\u306f\u683c\u7d0d\u4e88\u5b9a\u306e\u30a2\u30a4\u30c6\u30e0\u6570\u3068\u8a31\u5bb9\u3059\u308b\u507d\u967d\u6027\u7387\u3092\u3082\u3068\u306b\u6700\u9069\u306a\u30d3\u30c3\u30c8\u914d\u5217\u306e\u30b5\u30a4\u30ba\u3068\u30cf\u30c3\u30b7\u30e5\u95a2\u6570\u306e\u6570\u3092\u6c7a\u5b9a\u3057\u307e\u3059\u3002<\/p>\n<h3>\u5236\u7d04<\/h3>\n<p>\u3053\u306e\u3088\u3046\u306a\u4ed5\u7d44\u307f\u3067\u5024\u3092\u5224\u5b9a\u3057\u3066\u3044\u308b\u306e\u3067\u5358\u7d14\u306a Bloom Filter \u3067\u306f\u767b\u9332\u3057\u305f\u5024\u3092\u524a\u9664\u3067\u304d\u307e\u305b\u3093\u3002<br \/>\u8907\u6570\u306e\u8981\u7d20\u304c\u540c\u3058\u30d3\u30c3\u30c8\u3092\u5171\u6709\u3057\u3066\u3044\u308b\u305f\u3081\u30011 \u3064\u306e\u8981\u7d20\u3092\u524a\u9664\u3059\u308b\u3068\u4ed6\u306e\u8981\u7d20\u306e\u60c5\u5831\u307e\u3067\u6d88\u3048\u3066\u3057\u307e\u3046\u304b\u3089\u3067\u3059\u3002<br \/>\u307e\u305f\u767b\u9332\u3055\u308c\u308b\u30ad\u30fc\u304c\u5897\u3048\u308b\u307b\u3069 1 \u306b\u306a\u308b\u30d3\u30c3\u30c8\u304c\u591a\u304f\u306a\u308a\u7570\u306a\u308b\u30ad\u30fc\u304c\u540c\u3058\u30d3\u30c3\u30c8\u3092\u5171\u6709\u3059\u308b\u78ba\u7387\u304c\u4e0a\u304c\u308b\u305f\u3081\u3001\u507d\u967d\u6027\u304c\u767a\u751f\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<h2>Bloom Filter \u306b\u3088\u308b\u30ad\u30e3\u30c3\u30b7\u30e5\u3067\u306e\u5b58\u5728\u5224\u5b9a<\/h2>\n<p>Bloom Filter \u306e\u6027\u8cea\u306f\u30ad\u30e3\u30c3\u30b7\u30e5\u3067\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u4e0a\u306e\u30c7\u30fc\u30bf\u306e\u5b58\u5728\u78ba\u8a8d\u3092\u884c\u3046\u7528\u9014\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<h3>\u5024\u306e\u66f8\u304d\u8fbc\u307f<\/h3>\n<p>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u65b0\u3057\u3044\u30c7\u30fc\u30bf\u3092\u767b\u9332\u3059\u308b\u969b\u3001Bloom Filter \u306b\u3082\u540c\u3058\u30ad\u30fc\u3092\u767b\u9332\u3057\u307e\u3059\u3002<br \/>\u3053\u308c\u306b\u3088\u308a Bloom Filter \u304c\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u5b58\u5728\u3059\u308b\u53ef\u80fd\u6027\u306e\u3042\u308b\u30ad\u30fc\u3092\u5e38\u306b\u4fdd\u6301\u3059\u308b\u3088\u3046\u306b\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-large wp-image-59598\" src=\"https:\/\/developers.cyberagent.co.jp\/blog\/wp-content\/uploads\/2025\/10\/bloom_filter_cache_add-811x1024.png\" alt=\"Bloom Filter\u304c\u3042\u308b\u6642\u306e\u5024\u306e\u66f8\u304d\u8fbc\u307f\" width=\"400\" height=\"1010\"\/><\/p>\n<p>\u4e0a\u306e\u56f3\u3067\u306f\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304c <code>key1<\/code>, <code>key2<\/code>, <code>key3<\/code> \u3092\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u66f8\u304d\u8fbc\u3080\u3068\u540c\u6642\u306b\u540c\u3058\u30ad\u30fc\u3092 Bloom Filter \u306b\u8ffd\u52a0\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<h3>\u5024\u306e\u8aad\u307f\u53d6\u308a<\/h3>\n<p>\u30ad\u30e3\u30c3\u30b7\u30e5\u306b\u30ad\u30fc\u304c\u5b58\u5728\u3057\u306a\u304b\u3063\u305f\u6642\u3001\u307e\u305a Bloom Filter \u306b\u5bfe\u3057\u3066\u300c\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u305d\u306e\u30ad\u30fc\u304c\u5b58\u5728\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u304b\u300d\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<br \/>Bloom Filter \u304c\u300c\u5b58\u5728\u3057\u306a\u3044\u300d\u3068\u7b54\u3048\u305f\u5834\u5408\u3001\u305d\u306e\u30ad\u30fc\u306f\u78ba\u5b9f\u306b\u5b58\u5728\u3057\u306a\u3044\u306e\u3067\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u554f\u3044\u5408\u308f\u305b\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u305b\u3093\u3002<br \/>\u4e00\u65b9\u3067 Bloom Filter \u304c\u300c\u5b58\u5728\u3059\u308b\u304b\u3082\u3057\u308c\u306a\u3044\u300d\u3068\u7b54\u3048\u305f\u5834\u5408\u306b\u306f\u5b9f\u969b\u306b\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3078\u554f\u3044\u5408\u308f\u305b\u3092\u884c\u3044\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-large wp-image-59599\" src=\"https:\/\/developers.cyberagent.co.jp\/blog\/wp-content\/uploads\/2025\/10\/bloom_filter_cache_exists-1024x707.jpg\" alt=\"Bloom Filter\u304c\u3042\u308b\u6642\u306e\u5024\u306e\u8aad\u307f\u53d6\u308a\" width=\"800\" height=\"552\" srcset=\"https:\/\/developers.cyberagent.co.jp\/blog\/wp-content\/uploads\/2025\/10\/bloom_filter_cache_exists-1024x707.jpg 1024w, https:\/\/developers.cyberagent.co.jp\/blog\/wp-content\/uploads\/2025\/10\/bloom_filter_cache_exists-300x207.jpg 300w, https:\/\/developers.cyberagent.co.jp\/blog\/wp-content\/uploads\/2025\/10\/bloom_filter_cache_exists-768x530.jpg 768w, https:\/\/developers.cyberagent.co.jp\/blog\/wp-content\/uploads\/2025\/10\/bloom_filter_cache_exists-1536x1061.jpg 1536w, https:\/\/developers.cyberagent.co.jp\/blog\/wp-content\/uploads\/2025\/10\/bloom_filter_cache_exists-2048x1415.jpg 2048w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\"\/><\/p>\n<p>\u56f3\u306e\u5de6\u3067\u306f\u30ad\u30e3\u30c3\u30b7\u30e5\u306b <code>Key2<\/code> \u304c\u306a\u3044\u5834\u5408\u3067\u3082 Bloom Filter \u306b\u3088\u308a\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u5b58\u5728\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u306e\u304c\u308f\u304b\u3063\u305f\u305f\u3081\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3078\u554f\u3044\u5408\u308f\u305b\u3066\u5024\u3092\u53d6\u5f97\u3057\u3066\u3044\u307e\u3059\u3002<br \/>\u56f3\u306e\u53f3\u3067\u306f <code>Key4<\/code> \u304c Bloom Filter \u306b\u3082\u5b58\u5728\u3057\u306a\u3044\u305f\u3081\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3078\u306e\u554f\u3044\u5408\u308f\u305b\u3092\u884c\u3063\u3066\u3044\u307e\u305b\u3093\u3002<br \/>\u3053\u306e\u4ed5\u7d44\u307f\u306b\u3088\u308a\u5b58\u5728\u3057\u306a\u3044\u30ad\u30fc\u306b\u5bfe\u3059\u308b\u7121\u99c4\u306a DB \u30a2\u30af\u30bb\u30b9\u3092\u9632\u3052\u307e\u3059\u3002<\/p>\n<p>Bloom Filter \u306f\u507d\u9670\u6027\u304c\u767a\u751f\u3057\u306a\u3044\u305f\u3081\u3001\u672c\u5f53\u306f\u5b58\u5728\u3059\u308b\u30c7\u30fc\u30bf\u3092\u300c\u5b58\u5728\u3057\u306a\u3044\u300d\u3068\u5224\u5b9a\u3059\u308b\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u3002<br \/>\u507d\u967d\u6027\u306f\u767a\u751f\u3057\u5f97\u307e\u3059\u304c\u4f59\u5206\u306a\u554f\u3044\u5408\u308f\u305b\u304c\u5897\u3048\u308b\u3060\u3051\u3067\u3001Bloom Filter \u3092\u4f7f\u308f\u306a\u3044\u5834\u5408\u306b\u6bd4\u3079\u308c\u3070\u554f\u3044\u5408\u308f\u305b\u7dcf\u6570\u306f\u5927\u5e45\u306b\u6e1b\u3089\u305b\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/developers.cyberagent.co.jp\/blog\/wp-content\/uploads\/2025\/10\/bloom_filter_cache_false_positive-1-1024x638.jpg\" alt=\"\u507d\u967d\u6027\u30fb\u507d\u9670\u6027\u306e\u6642\u306e\u6319\u52d5\" width=\"800\" height=\"498\" class=\"aligncenter size-large wp-image-59622\" srcset=\"https:\/\/developers.cyberagent.co.jp\/blog\/wp-content\/uploads\/2025\/10\/bloom_filter_cache_false_positive-1-1024x638.jpg 1024w, https:\/\/developers.cyberagent.co.jp\/blog\/wp-content\/uploads\/2025\/10\/bloom_filter_cache_false_positive-1-300x187.jpg 300w, https:\/\/developers.cyberagent.co.jp\/blog\/wp-content\/uploads\/2025\/10\/bloom_filter_cache_false_positive-1-768x479.jpg 768w, https:\/\/developers.cyberagent.co.jp\/blog\/wp-content\/uploads\/2025\/10\/bloom_filter_cache_false_positive-1-1536x957.jpg 1536w, https:\/\/developers.cyberagent.co.jp\/blog\/wp-content\/uploads\/2025\/10\/bloom_filter_cache_false_positive-1-2048x1276.jpg 2048w, https:\/\/developers.cyberagent.co.jp\/blog\/wp-content\/uploads\/2025\/10\/bloom_filter_cache_false_positive-1-480x300.jpg 480w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\"\/><\/p>\n<p>\u4f8b\u3048\u3070\u5168\u30ea\u30af\u30a8\u30b9\u30c8\u306e\u3046\u3061\u5b9f\u969b\u306b\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u5024\u304c\u5b58\u5728\u3059\u308b\u5272\u5408\u3092 20% \u3068\u3057\u307e\u3059\u3002<br \/>Bloom Filter \u306e\u507d\u967d\u6027\u7387\u3092 1% \u306b\u8a2d\u5b9a\u3057\u305f\u5834\u5408\u3001\u5b58\u5728\u3057\u306a\u3044 80% \u306e\u30ea\u30af\u30a8\u30b9\u30c8\u306e\u3046\u3061 1%\uff08= \u5168\u4f53\u306e 0.8%\uff09\u304c\u8aa4\u3063\u3066\u5b58\u5728\u3059\u308b\u3068\u5224\u5b9a\u3055\u308c\u307e\u3059\u3002<br \/>\u3057\u305f\u304c\u3063\u3066\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3078\u5230\u9054\u3059\u308b\u30ea\u30af\u30a8\u30b9\u30c8\u306f\u5b9f\u969b\u306b\u5b58\u5728\u3059\u308b 20% \uff0b \u507d\u967d\u6027\u306b\u3088\u308b 0.8% \uff1d \u7d04 20.8% \u306b\u6291\u3048\u3089\u308c\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u3088\u3046\u306b Bloom Filter \u3092\u5229\u7528\u3059\u308c\u3070\u5b89\u5168\u306b\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3078\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u6e1b\u3089\u305b\u307e\u3059\u3002<\/p>\n<h2>valkey-go \u3092\u7528\u3044\u305f Bloom Filter \u306e\u5229\u7528<\/h2>\n<p>ABEMA \u3067\u306f Google Cloud \u306e Memorystore for Valkey \u3092\u30ad\u30e3\u30c3\u30b7\u30e5\u3068\u3057\u3066\u5229\u7528\u3057\u3066\u3044\u307e\u3059\u3002<br \/>Valkey \u306b\u306f\u30e2\u30b8\u30e5\u30fc\u30eb\u3092\u5c0e\u5165\u3057\u6a5f\u80fd\u3092\u62e1\u5f35\u3067\u304d\u308b\u4ed5\u7d44\u307f\u304c\u3042\u308a\u3001Bloom Filter \u3082<code>valkey-bloom<\/code> \u30e2\u30b8\u30e5\u30fc\u30eb\u3092\u5c0e\u5165\u3059\u308c\u3070\u5229\u7528\u3067\u304d\u307e\u3059\u3002<br \/>\u3057\u304b\u3057\u6b8b\u5ff5\u306a\u304c\u3089 Memorystore for Valkey \u3067\u306f\u30e2\u30b8\u30e5\u30fc\u30eb\u306e\u5c0e\u5165\u304c\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u3044\u307e\u305b\u3093\u3002<\/p>\n<p>\u305d\u3053\u3067\u4ee3\u66ff\u624b\u6bb5\u3092\u8abf\u3079\u305f\u3068\u3053\u308d\u3001Valkey \u306e Go \u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30e9\u30a4\u30d6\u30e9\u30ea\u306e<code>valkey-go<\/code>\u3067 Bloom Filter \u306e\u6a5f\u80fd\u304c\u63d0\u4f9b\u3055\u308c\u3066\u3044\u308b\u306e\u304c\u308f\u304b\u308a\u307e\u3057\u305f\u3002<br \/><code>valkey-go<\/code> \u306b\u306f <a target=\"_blank\" href=\"https:\/\/github.com\/valkey-io\/valkey-go\/tree\/main\/valkeyprob\">valkeyprob \u30d1\u30c3\u30b1\u30fc\u30b8<\/a> \u3068\u3057\u3066 Bloom Filter \u306e\u5b9f\u88c5\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u4eca\u56de\u306f\u305d\u306e\u4f7f\u3044\u65b9\u3092\u7c21\u5358\u306b\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n<pre><code class=\"language-go\">&#13;\nbf, err := valkeyprob.NewBloomFilter(client, \"bloom_filter\", expectedNumberOfItems, falsePositiveRate)&#13;\nif err != nil {&#13;\n\tpanic(err)&#13;\n}&#13;\n&#13;\nerr = bf.Add(ctx, \"hello\")&#13;\nif err != nil {&#13;\n\tpanic(err)&#13;\n}&#13;\n&#13;\nexists, err := bf.Exists(ctx, \"hello\")&#13;\nif err != nil {&#13;\n\tpanic(err)&#13;\n}&#13;\nfmt.Println(exists) \/\/ true&#13;\n<\/code><\/pre>\n<p><code>NewBloomFilter<\/code> \u3067\u306f\u683c\u7d0d\u4e88\u5b9a\u306e\u30a2\u30a4\u30c6\u30e0\u6570\u3068\u8a31\u5bb9\u3059\u308b\u507d\u967d\u6027\u7387\u3092\u6307\u5b9a\u3057\u3066 Bloom Filter \u3092\u4f5c\u6210\u3057\u307e\u3059\u3002<br \/>\u4f5c\u6210\u5f8c\u306f <code>Add<\/code> \u3084 <code>Exists<\/code> \u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3076\u3060\u3051\u3067\u3001\u5024\u306e\u767b\u9332\u3084\u5b58\u5728\u78ba\u8a8d\u3092\u7c21\u5358\u306b\u5b9f\u884c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u3067\u306f\u5b9f\u969b\u306b\u3069\u308c\u304f\u3089\u3044\u306e\u30e1\u30e2\u30ea\u3092\u4f7f\u7528\u3059\u308b\u306e\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n<p><code>valkey-go<\/code> \u3067\u306f Bloom Filter \u3092\u5185\u90e8\u7684\u306b <a target=\"_blank\" href=\"https:\/\/valkey.io\/topics\/bitmaps\/\">bitmap<\/a> \u578b\u3067\u4fdd\u6301\u3057\u3066\u3044\u307e\u3059\u3002<br \/>bitmap \u578b\u306f Valkey \u306e\u6587\u5b57\u5217\u578b\u3092\u30d3\u30c3\u30c8\u5217\u3068\u3057\u3066\u64cd\u4f5c\u304c\u3067\u304d\u308b\u4ed5\u7d44\u307f\u3067\u3059\u3002<br \/>\u3053\u306e\u30b5\u30a4\u30ba\u306f\u6b21\u306e\u5f0f\u3067\u8a08\u7b97\u3055\u308c\u307e\u3059\u3002<\/p>\n<pre><code class=\"language-go\">&#13;\nfunc numberOfBloomFilterBits(n uint, r float64) uint {&#13;\n\treturn uint(math.Ceil(-float64(n) * math.Log(r) \/ math.Pow(math.Log(2), 2)))&#13;\n}&#13;\n<\/code><\/pre>\n<p>\u3053\u306e\u5f0f\u306b\u57fa\u3065\u304f\u3068\u4f8b\u3048\u3070\u30a2\u30a4\u30c6\u30e0\u6570 1,000\u30fb\u507d\u967d\u6027\u7387 0.1% \u306e\u5834\u5408\u306f \u7d04 1.8KB\u3001\u30a2\u30a4\u30c6\u30e0\u6570 10 \u5104\u30fb\u507d\u967d\u6027\u7387 0.01% \u306e\u5834\u5408\u306f \u7d04 1.8GB \u304c\u5fc5\u8981\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>Valkey \u306e bitmap \u578b\u306f\u6700\u5927\u3067 512MB \u3057\u304b\u6271\u3048\u306a\u3044\u5236\u7d04\u304c\u3042\u308a\u307e\u3059\u3002<br \/>\u305d\u306e\u305f\u3081\u6570\u5341\u5104\u5358\u4f4d\u306e\u30a2\u30a4\u30c6\u30e0\u3092 1 \u3064\u306e Bloom Filter \u306b\u683c\u7d0d\u3067\u304d\u307e\u305b\u3093\u3002<br \/>\u3053\u306e\u5834\u5408\u306f\u30ad\u30fc\u306e\u7bc4\u56f2\u7b49\u3067 Bloom Filter \u81ea\u4f53\u3092\u8907\u6570\u306b\u5206\u5272\u3059\u308c\u3070 Bloom Filter \u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n<h3>Sliding Bloom Filter<\/h3>\n<p>\u524d\u8ff0\u306e\u3088\u3046\u306b Bloom Filter \u306f\u767b\u9332\u3059\u308b\u5024\u304c\u5897\u3048\u3066\u3044\u304f\u3068\u30d3\u30c3\u30c8\u5217\u306e\u4e2d\u3067 1 \u306e\u5272\u5408\u304c\u9ad8\u304f\u306a\u308a\u3001\u507d\u967d\u6027\u7387\u304c\u4e0a\u6607\u3057\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n<p>\u30c7\u30fc\u30bf\u306e\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\u304c\u9577\u3044\u5834\u5408\u306f\u554f\u984c\u306b\u306a\u308a\u306b\u304f\u3044\u3082\u306e\u306e\u3001\u77ed\u671f\u9593\u3067\u5927\u91cf\u306e\u30c7\u30fc\u30bf\u304c\u751f\u6210\u3055\u308c\u308b\u74b0\u5883\u3067\u306f\u3059\u3067\u306b\u7121\u52b9\u306b\u306a\u3063\u305f\u30ad\u30fc\u306e\u30d3\u30c3\u30c8\u304c\u6b8b\u308a\u7d9a\u3051\u7cbe\u5ea6\u304c\u4f4e\u4e0b\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u5834\u5408\u306f\u4e00\u5b9a\u671f\u9593\u3054\u3068\u306b Bloom Filter \u3092\u4ea4\u63db\u3059\u308b\u4ed5\u7d44\u307f\u304c\u6709\u52b9\u3067\u3059\u3002<br \/>\u305d\u306e\u4ee3\u8868\u7684\u306a\u65b9\u6cd5\u304c Sliding Window Bloom Filter \u3067\u3059\u3002<\/p>\n<p><code>valkey-go<\/code> \u306e <code>valkeyprob<\/code> \u30d1\u30c3\u30b1\u30fc\u30b8\u306b\u306f\u3001\u3053\u306e Sliding Window Bloom Filter \u3082\u7528\u610f\u3055\u308c\u3066\u304a\u308a\u901a\u5e38\u306e Bloom Filter \u3068\u540c\u69d8\u306b\u5229\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre><code class=\"language-go\">&#13;\nsbf, err := NewSlidingBloomFilter(client, \"sliding_bloom_filter\", expectedNumberOfItems, falsePositiveRate, windowDuration)&#13;\n&#13;\nerr = sbf.Add(ctx, \"hello\")&#13;\nif err != nil {&#13;\n\tpanic(err)&#13;\n}&#13;\n&#13;\nexists, err := sbf.Exists(ctx, \"hello\")&#13;\nif err != nil {&#13;\n\tpanic(err)&#13;\n}&#13;\nfmt.Println(exists) \/\/ true&#13;\n<\/code><\/pre>\n<p><code>NewSlidingBloomFilter<\/code> \u3067\u306f\u901a\u5e38\u306e Bloom Filter \u3068\u540c\u69d8\u306b\u30a2\u30a4\u30c6\u30e0\u6570\u3068\u507d\u967d\u6027\u7387\u3092\u6307\u5b9a\u3057\u3001\u52a0\u3048\u3066\u4fdd\u6301\u671f\u9593\u3092\u6307\u5b9a\u3057\u3066 Sliding Bloom Filter \u3092\u4f5c\u6210\u3057\u307e\u3059\u3002<br \/>\u5024\u306e\u767b\u9332\u3068\u78ba\u8a8d\u306f\u901a\u5e38\u306e Bloom Filter \u3068\u540c\u69d8\u306b\u3067\u304d\u307e\u3059\u3002<\/p>\n<h3>\u30d5\u30a3\u30eb\u30bf\u30fc\u4ea4\u63db\u306e\u30ed\u30b8\u30c3\u30af<\/h3>\n<p><code>valkeyprob<\/code> \u306e Sliding Bloom Filter \u3067\u306f Bloom Filter \u3092 2 \u3064\u7528\u610f\u3057\u3001\u30a6\u30a3\u30f3\u30c9\u30a6\u3092\u534a\u5206\u305a\u3064\u91cd\u306d\u306a\u304c\u3089\u30ed\u30fc\u30c6\u30fc\u30b7\u30e7\u30f3\u3055\u305b\u308b\u3053\u3068\u3067\u53e4\u3044\u30d5\u30a3\u30eb\u30bf\u3092\u5165\u308c\u66ff\u3048\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-large wp-image-59601\" src=\"https:\/\/developers.cyberagent.co.jp\/blog\/wp-content\/uploads\/2025\/10\/sliding_bloom_filter-1024x568.jpg\" alt=\"Sliding Bloom Filter\u306e\u30d5\u30a3\u30eb\u30bf\u4ea4\u63db\u306e\u56f3\u89e3\" width=\"800\" height=\"444\" srcset=\"https:\/\/developers.cyberagent.co.jp\/blog\/wp-content\/uploads\/2025\/10\/sliding_bloom_filter-1024x568.jpg 1024w, https:\/\/developers.cyberagent.co.jp\/blog\/wp-content\/uploads\/2025\/10\/sliding_bloom_filter-300x166.jpg 300w, https:\/\/developers.cyberagent.co.jp\/blog\/wp-content\/uploads\/2025\/10\/sliding_bloom_filter-768x426.jpg 768w, https:\/\/developers.cyberagent.co.jp\/blog\/wp-content\/uploads\/2025\/10\/sliding_bloom_filter-1536x852.jpg 1536w, https:\/\/developers.cyberagent.co.jp\/blog\/wp-content\/uploads\/2025\/10\/sliding_bloom_filter-2048x1135.jpg 2048w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\"\/><\/p>\n<p>\u4e0a\u306e\u56f3\u306f window \u304c 10 \u65e5\u9593\u306e\u5834\u5408\u306e\u30ed\u30fc\u30c6\u30fc\u30b7\u30e7\u30f3\u306e\u6d41\u308c\u3067\u3059\u3002<\/p>\n<h4>0\u301c5 \u65e5\u306e\u9593<\/h4>\n<p>\u30c7\u30fc\u30bf\u3092\u8ffd\u52a0\u3059\u308b\u6642\u306fCurrent\uff08Filter 1\uff09\u3068 Next\uff08Filter 2\uff09\u306e \u4e21\u65b9\u306b\u66f8\u304d\u8fbc\u307f\u307e\u3059\u3002<br \/>\u5b58\u5728\u78ba\u8a8d\u306f\u73fe\u5728\u306e\u30d5\u30a3\u30eb\u30bf\u3067\u3042\u308b Filter 1 \u306b\u5bfe\u3057\u3066\u884c\u308f\u308c\u307e\u3059\u3002<\/p>\n<h4>5 \u65e5\u304c\u7d4c\u904e\u3057\u305f\u6642\u70b9<\/h4>\n<p>\u30a6\u30a3\u30f3\u30c9\u30a6\u306e\u534a\u5206\u306b\u9054\u3059\u308b\u3068 Filter 1 \u306f\u7834\u68c4\u3055\u308c Filter 2 \u304c\u65b0\u3057\u3044 Current \u306b\u6607\u683c\u3057\u307e\u3059\u3002<br \/>\u540c\u6642\u306b\u65b0\u3057\u3044\u7a7a\u306e\u30d5\u30a3\u30eb\u30bf\u30fc\u3068\u3057\u3066 Next\uff08Filter 3\uff09\u304c\u751f\u6210\u3055\u308c\u307e\u3059\u3002<br \/>\u4ee5\u964d\u300110 \u65e5\u76ee\u307e\u3067\u306f\u5b58\u5728\u78ba\u8a8d\u306f Filter 2 \u3092\u7528\u3044\u3066\u884c\u308f\u308c\u307e\u3059\u3002<\/p>\n<h4>10 \u65e5\u304c\u7d4c\u904e\u3057\u305f\u6642\u70b9<\/h4>\n<p>Filter 2 \u304c\u7834\u68c4\u3055\u308c Filter 3 \u304c Current \u306b\u6607\u683c\u3057\u307e\u3059\u3002<br \/>\u540c\u6642\u306b\u65b0\u3057\u3044 Next\uff08Filter 4\uff09\u304c\u8ffd\u52a0\u3055\u308c\u307e\u3059\u3002<br \/>\u3053\u3053\u304b\u3089\u5148\u306f Filter 3 \u3092\u7528\u3044\u3066\u5b58\u5728\u78ba\u8a8d\u304c\u884c\u308f\u308c\u307e\u3059\u3002<\/p>\n<p>Filter 3 \u306f 5 \u65e5\u76ee\u306b\u751f\u6210\u3055\u308c\u305f\u306e\u3067\u3001\u3053\u306e\u6642\u70b9\u3067 0\u301c5 \u65e5\u306e\u9593\u306b Bloom Filter \u306b\u767b\u9332\u3055\u308c\u3066\u3044\u305f\u30ad\u30fc\u306f Filter 3 \u306b\u542b\u307e\u308c\u3066\u3044\u307e\u305b\u3093\u3002<\/p>\n<p>\u3053\u306e\u4ed5\u7d44\u307f\u306b\u3088\u3063\u3066\u5404\u30ad\u30fc\u306f\u8ffd\u52a0\u3055\u308c\u3066\u304b\u3089\u6700\u5927\u3067 1 \u30a6\u30a3\u30f3\u30c9\u30a6\u5206\u307e\u3067\u3057\u304b\u4fdd\u6301\u3055\u308c\u306a\u3044\u3088\u3046\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2>\u7d42\u308f\u308a\u306b<\/h2>\n<p>\u672c\u8a18\u4e8b\u3067\u306f Bloom Filter \u306e\u4ed5\u7d44\u307f\u3068\u6d3b\u7528\u65b9\u6cd5\u3092\u7d39\u4ecb\u3057\u307e\u3057\u305f\u3002<\/p>\n<p>\u30ea\u30af\u30a8\u30b9\u30c8\u306e\u30ab\u30fc\u30c7\u30a3\u30ca\u30ea\u30c6\u30a3\u304c\u9ad8\u3044\u5834\u5408\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u30df\u30b9\u306b\u3088\u308b\u7121\u99c4\u306a\u30a2\u30af\u30bb\u30b9\u304c\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u8ca0\u8377\u3092\u304b\u3051\u3066\u3057\u307e\u3044\u307e\u3059\u3002<br \/>Bloom Filter \u3092\u5c0e\u5165\u3059\u308b\u3068\u5b58\u5728\u3057\u306a\u3044\u30ad\u30fc\u3078\u306e\u554f\u3044\u5408\u308f\u305b\u3092\u52b9\u7387\u7684\u306b\u6392\u9664\u3057\u3066\u5b89\u5168\u306b\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3078\u306e\u8ca0\u8377\u3092\u4e0b\u3052\u3089\u308c\u307e\u3059\u3002<\/p>\n<p>\u307e\u305f\u9577\u671f\u9593 Bloom Filter \u3092\u904b\u7528\u3059\u308b\u3053\u3068\u3067\u507d\u967d\u6027\u7387\u304c\u9ad8\u307e\u308b\u554f\u984c\u306b\u5bfe\u3057\u3066\u3082 Sliding Bloom Filter \u306e\u6d3b\u7528\u306b\u3088\u308a\u5bfe\u5fdc\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>ABEMA \u306e\u5e83\u544a\u914d\u4fe1\u30b7\u30b9\u30c6\u30e0\u306b\u304a\u3044\u3066\u3082\u540c\u69d8\u306e\u4ed5\u7d44\u307f\u3092\u6d3b\u7528\u3067\u304d\u308b\u5834\u9762\u306f\u591a\u304f\u3042\u308a\u305d\u3046\u3067\u3059\u3002\u4eca\u5f8c\u306e\u904b\u7528\u6539\u5584\u306e\u65b9\u6cd5\u3068\u3057\u3066\u7a4d\u6975\u7684\u306b\u691c\u8a0e\u3057\u3066\u3044\u304d\u305f\u3044\u3068\u8003\u3048\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u6700\u5f8c\u307e\u3067\u8aad\u3093\u3067\u3044\u305f\u3060\u304d\u3001\u3042\u308a\u304c\u3068\u3046\u3054\u3056\u3044\u307e\u3057\u305f\u3002<\/p>\n<p>    <!-- .entry-footer --><\/p>\n<div class=\"entryNav\">\n<div class=\"entryNav__box\"><a target=\"_blank\" class=\"entryNav_link entryNav_previous\" style=\"background-image:url(https:\/\/developers.cyberagent.co.jp\/blog\/wp-content\/uploads\/2025\/10\/f81fd2e4c52864042852c112ce927ae2-1-672x350-1.png)\" 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