{"id":46841,"date":"2023-10-08T09:41:58","date_gmt":"2023-08-13T11:34:48","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/46841-2\/"},"modified":"2024-05-04T03:20:58","modified_gmt":"2024-05-03T19:20:58","slug":"46841-2","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/46841-2\/","title":{"rendered":""},"content":{"rendered":"<p>Data Integration as Service: Kafka-Streams\u306e\u7d39\u4ecb<\/p>\n<p>\u30a2\u30c9\u30d9\u30f3\u30c8\u30ab\u30ec\u30f3\u30c0\u30fc4\u65e5\u76ee\u306eKafka-Connect\u306b\u7d9a\u304d,\u4eca\u56de\u306fApache Kafka 0.10\u304b\u3089\u540c\u68b1\u3055\u308c\u3066\u3044Kafka-Streams\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002Kafka-Streams\u306fKafka\u304b\u3089\u5165\u529b\u30c8\u30d4\u30c3\u30af\u304b\u3089\u30c7\u30fc\u30bf\u3092\u53d7\u3051\u53d6\u308a\u3001\u4f55\u3089\u304b\u306e\u51e6\u7406\u3092\u884c\u3063\u3066\u3001Kafka\u306e\u51fa\u529b\u30c8\u30d4\u30c3\u30af\u306b\u30c7\u30fc\u30bf\u3092\u66f8\u304d\u623b\u3059\u3068\u3044\u3046\u3001\u30b9\u30c8\u30ea\u30fc\u30df\u30f3\u30b0\u30a2\u30d7\u30ea\u3092\u66f8\u304f\u305f\u3081\u306e\u30e9\u30a4\u30d6\u30e9\u30ea\u3067\u3059\u3002Kafka-Connect\u3068\u9055\u3044\u3001\u30e9\u30a4\u30d6\u30e9\u30ea\u3067\u3059\u306e\u3067\u5358\u4f53\u3067\u306f\u4f55\u3082\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n<p>\u203b\u80fd\u66f8\u304d\u306f\u3044\u3044\u304b\u3089\u3001\u624b\u3063\u53d6\u308a\u65e9\u304f\u3069\u3046\u4f7f\u3046\u306e\u304b\u77e5\u308a\u305f\u3044\u3068\u3044\u3046\u4eba\u306f&#8221;\u307e\u3068\u3081&#8221;-&gt;&#8221;DSL&#8221;\u306e\u9806\u306b\u8aad\u3093\u3067\u304f\u3060\u3055\u3044\u3002<\/p>\n<h1>\u7279\u5fb4<\/h1>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30df\u30ea\u79d2\u5358\u4f4d\u306e\u30ec\u30a4\u30c6\u30f3\u30b7\u30fc\u3067\u30a4\u30d9\u30f3\u30c8\u6bce\u306e\u51e6\u7406(\u30de\u30a4\u30af\u30ed\u30d0\u30c3\u30c1\u3067\u306f\u306a\u3044\uff09<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">DSL\u3068\u4f4e\u30ec\u30d9\u30ebAPI\u306e2\u3064\u3092\u63d0\u4f9b<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30b9\u30c6\u30fc\u30c8\u30d5\u30eb\u30fb\u30b9\u30c6\u30fc\u30c8\u30ec\u30b9\u306e\u51e6\u7406<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30b9\u30c8\u30ea\u30fc\u30e0JOIN\u30fb\u96c6\u7d04<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u6642\u9593\u306b\u5bfe\u3059\u308b\u7a93\u95a2\u6570\u306b\u3088\u308a\u3001\u4e00\u5b9a\u6642\u9593\u6bce\u306e\u51e6\u7406\u304c\u53ef\u80fd<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30ed\u30fc\u30c9\u30d0\u30e9\u30f3\u30b7\u30f3\u30b0<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u8010\u969c\u5bb3\u6027\u306e\u78ba\u4fdd\u3001\u969c\u5bb3\u304b\u3089\u306e\u56de\u5fa9<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u30c0\u30a6\u30f3\u30bf\u30a4\u30e0\u306a\u3057\u306b\u30a2\u30d7\u30ea\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u66f4\u65b0\u304c\u3067\u304d\u308b<\/ul>\n<h1>Kafka-Streams\u80cc\u666f<\/h1>\n<p>\u7279\u5fb4\u3092\u8aad\u3080\u3068\u300cSpark Streaming\u3067\u3067\u304d\u308b\u3053\u3068\u3070\u3063\u304b\u308a\uff1fApache Flink,Storm,Samza,&#8230;\u3068\u304b\u65e2\u306b\u3042\u308b\u3088\u306a\uff1f\u300d\u3068\u601d\u308f\u308c\u308b\u3067\u3057\u3087\u3046\u3002\u3057\u304b\u3057\u3053\u308c\u3089\u306e\u91cd\u91cf\u7d1a\u306e\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3001\u3055\u3089\u306b\u306f\u8907\u96d1\u306aHadoop\u30a8\u30b3\u30b7\u30b9\u30c6\u30e0\u4e00\u5f0f\u304c\u306a\u304f\u3066\u3082\u66f8\u3051\u308b\u30a2\u30d7\u30ea\u3082\u591a\u304f\u3042\u308b\u306f\u305a\u3067\u3059\u3002\u30b9\u30c8\u30ea\u30fc\u30e0\u30a2\u30d7\u30ea\u306e\u591a\u304f\u306fmap-reduce\u3092\u5fc5\u8981\u3068\u3057\u3066\u3044\u308b\u308f\u3051\u3067\u306f\u306a\u3044\u306f\u305a\u3002<\/p>\n<p>\u305d\u306e\u4e00\u65b9Kafka\u306econsumer\/producer API\u3092\u76f4\u63a5\u53e9\u304f\u30a2\u30d7\u30ea\u306f\u7c21\u5358\u306b\u66f8\u3051\u307e\u3059\u304c\u3001\u30b9\u30b1\u30fc\u30e9\u30d3\u30ea\u30c6\u30a3\u306e\u305f\u3081\u306e\u5206\u6563\u51e6\u7406\u3084\u3001\u8010\u969c\u5bb3\u6027\u306e\u30aa\u30d5\u30bb\u30c3\u30c8\u7ba1\u7406\u306a\u3069\u3092\u8003\u3048\u51fa\u3059\u3068\u7d50\u69cb\u624b\u9593\u3067\u3059\u3002<\/p>\n<p>\u305d\u3053\u3067\u3001\u91cd\u91cf\u7d1a\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u306a\u3057\u306b\u3001\u7c21\u5358\u306b\u30b9\u30b1\u30fc\u30e9\u30d6\u30eb\u3067\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u30b9\u30c8\u30ea\u30fc\u30df\u30f3\u30b0\u30a2\u30d7\u30ea\u304c\u66f8\u3051\u308b\u3088\u3046\u306b\u3059\u308b\u306e\u304cKafka-Streams \u30e9\u30a4\u30d6\u30e9\u30ea \u3067\u3059\u3002<\/p>\n<h1>\u30b9\u30c8\u30ea\u30fc\u30e0\u306f\u30c6\u30fc\u30d6\u30eb\u3060\uff01<\/h1>\n<p>Kafka-Streams\u3067\u306f\u30b9\u30c8\u30ea\u30fc\u30e0\u3068\u30c6\u30fc\u30d6\u30eb\u306f\u4e8c\u91cd\u6027\uff08\u4e8c\u3064\u306e\u6027\u8cea\u3092\u540c\u6642\u306b\u6301\u3064\uff09\u306e\u6982\u5ff5\u3068\u3055\u308c\u3066\u3044\u307e\u3059\u3002RDBMS\u306e\u30c6\u30fc\u30d6\u30eb\u306fSQL\u3067INSERT, UPDATE, DELETE\u3068\u3044\u3046\u4e00\u9023\u306e\u64cd\u4f5c\u3092\u884c\u3063\u305f\u7d50\u679c\u304c\u683c\u7d0d\u3055\u308c\u3066\u3044\u308b\u306e\u3067\u3059\u304b\u3089\u3001\u3042\u308b\u7a2e\u306e\u30b9\u30c8\u30ea\u30fc\u30e0\u3068\u307f\u306a\u305b\u308b\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002\u30b9\u30c8\u30ea\u30fc\u30e0\u3068\u30c6\u30fc\u30d6\u30eb\u306f\u305d\u308c\u305e\u308cKStream, KTable\u3067\u30e2\u30c7\u30eb\u5316\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u203b\u7528\u8a9e\u304c\u3084\u3084\u3053\u3057\u3044\u306e\u304cKafka-Streams\u306e\u96e3\u70b9\u306a\u306e\u3067\u3059\u304c\u3001KStream\u3082KTable\u3082\u30b9\u30c8\u30ea\u30fc\u30e0\u306e\u30bf\u30a4\u30d7\u3067\u3059\u3002\u5b9f\u969b\u6b21\u306b\u51fa\u3066\u304f\u308b\u3088\u3046\u306bKTable\u306f\u30c1\u30a7\u30f3\u30b8\u30ed\u30b0 \u30b9\u30c8\u30ea\u30fc\u30e0\u3068\u547c\u3070\u308c\u3066\u3044\u307e\u3059\u3002KTable\u306f\u30ad\u30fc\u6bce\u306b\u6700\u65b0\u306e\u5024\u304c\u683c\u7d0d\u3055\u308c\u305f\u30ad\u30e3\u30c3\u30b7\u30e5\u307f\u305f\u3044\u306a\u3082\u306e\u3067\u3059\u3002Table\u3067\u306a\u304f\u3082\u3063\u3068\u826f\u3044\u540d\u524d\u304c\u3042\u3063\u305f\u306f\u305a\u3002<\/p>\n<h2>KStream &#8211; \u30ec\u30b3\u30fc\u30c9\u30b9\u30c8\u30ea\u30fc\u30e0<\/h2>\n<p>KStream\u306b\u306fKafka\u304b\u3089\u53d7\u3051\u53d6\u3063\u305f\u30ec\u30b3\u30fc\u30c9\u304c\u305d\u306e\u307e\u307e\u8ffd\u52a0\u3055\u308c\u307e\u3059\u3002DB\u306e\u4f8b\u306a\u3089,\u30ad\u30fc\u30d0\u30ea\u30e5\u30fc\u30da\u30a2\u3092INSERT\u3057\u305f\u306e\u3068\u4f3c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u4eca\u30af\u30ea\u30c3\u30af\u6570\u3092\u8868\u793a\u3059\u308b\u30a2\u30d7\u30ea\u3092\u66f8\u3044\u305f\u3068\u3057\u307e\u3059\u3002Kafka\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u306f(user, clicks)\u3068\u3057\u3001\u30a2\u30d7\u30ea\u306fuser\u3092\u30ad\u30fc\u3068\u3057\u3066sum(clicks)\u3092\u3059\u308b\u3082\u306e\u3068\u3057\u307e\u3059\u3002\u4eca\u6b21\u306e\u3088\u3046\u306b\u4e8c\u3064\u306e\u30ec\u30b3\u30fc\u30c9\u304c\u9010\u6b21\u5165\u3063\u3066\u304d\u3068\u3057\u307e\u3059\u3002<\/p>\n<p>(&#8220;alice&#8221;, 1)<br \/>\n(&#8220;alice&#8221;, 3)<\/p>\n<p>\u3082\u3057\u3053\u306e\u30a2\u30d7\u30ea\u304cKStream\u3092\u4f7f\u3063\u3066\u5b9f\u88c5\u3055\u308c\u3066\u3044\u308b\u306a\u3089\u3001alice\u306e\u30af\u30ea\u30c3\u30af\u6570\u306f1+3\u30674\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h2>KTable &#8211; \u30c1\u30a7\u30f3\u30b8\u30ed\u30b0\u30b9\u30c8\u30ea\u30fc\u30e0<\/h2>\n<p>KTable\u306fKafka\u304b\u3089\u53d7\u3051\u53d6\u3063\u305f\u30ec\u30b3\u30fc\u30c9\u3067\u3001\u30ad\u30fc\u3092\u5143\u306b\u5024\u3092\u66f4\u65b0\u3057\u307e\u3059\u3002DB\u306e\u4f8b\u306a\u3089PK\u3092\u4f7f\u3063\u3066UPDATE\u3092\u884c\u3046\u3053\u3068\u306b\u76f8\u5f53\u3057\u307e\u3059\u3002<\/p>\n<p>\u4e0a\u3067\u66f8\u3044\u305f\u30af\u30ea\u30c3\u30af\u6570\u3092\u8868\u793a\u3059\u308b\u30a2\u30d7\u30ea\u306e\u4f8b\u306a\u3089\u3001\u6700\u65b0\u306e\u30ec\u30b3\u30fc\u30c9\u306e\u5024\u304cKTable\u306b\u5165\u3063\u3066\u3044\u308b\u308f\u3051\u3067\u3059\u304b\u3089\u3001\u30af\u30ea\u30c3\u30af\u6570\u306f3\u3068\u3044\u3046\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h1>\u96c6\u7d04<\/h1>\n<p>\u3059\u3067\u306bsum\u306e\u4f8b\u3092\u3042\u3052\u307e\u3057\u305f\u304c\u3001min, max, sum\u306a\u3069\u306e\u96c6\u7d04\u95a2\u6570\u3067KStream\/KTable\u3068\u3082\u8a08\u7b97\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n<h1>\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u3068\u7a93\u95a2\u6570<\/h1>\n<p>\u30b9\u30c8\u30ea\u30fc\u30e0\u30a2\u30d7\u30ea\u306f\u30a4\u30d9\u30f3\u30c8\u304c\u767a\u751f\u3057\u305f\u6642\u523b\u3092\u5143\u306b\u51e6\u7406\u3092\u884c\u3046\u3053\u3068\u304c\u591a\u3044\u3068\u601d\u3044\u307e\u3059\u3002\u305f\u3060\u3057\u8907\u6570\u306e\u30b5\u30fc\u30d0\u30fc\u304b\u3089Kafka\u306b\u9001\u3089\u308c\u3066\u304f\u308b\u30a4\u30d9\u30f3\u30c8\u304c\u767a\u751f\u9806\u306b\u5230\u7740\u3059\u308b\u4fdd\u969c\u306f\u306a\u3044\u3067\u3057\u3087\u3046\u3002\u7a93\u95a2\u6570\u3067\u671f\u9593\u3092\u8a2d\u3051\u308b\u3053\u3068\u3067\u3001\u9806\u5e8f\u3092\u6b63\u3057\u304f\u3057\u3066\u304b\u3089\u51e6\u7406\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u306e\u30bf\u30a4\u30d7\u306f\u30a4\u30d9\u30f3\u30c8\u6642\u523b\u4ee5\u5916\u306b\u3001\u6271\u3044\u306e\u7c21\u5358\u306a\u53d6\u8fbc\u307f\u6642\u523b\u3001\u51e6\u7406\u6642\u523b\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<div>\n<div class=\"post-table\">\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u306e\u30bf\u30a4\u30d7\u6982\u8981event timeKafka Producer\u304c\u7533\u544a\u3057\u305f\u30a4\u30d9\u30f3\u30c8\u306e\u767a\u751f\u6642\u523bingestion timeKafka Broker\u304c\u30ec\u30b3\u30fc\u30c9\u3092\u53d6\u308a\u8fbc\u3093\u3060\u6642\u523bprocessing time\u30b9\u30c8\u30ea\u30fc\u30df\u30f3\u30b0\u30a2\u30d7\u30ea\u304c\u51e6\u7406\u3057\u305f\u6642\u523b<\/div>\n<\/div>\n<p>\u7a93\u95a2\u6570\u306e\u30bf\u30a4\u30d7\u306f\u3001\u30bf\u30f3\u30d6\u30ea\u30f3\u30b0\u3001\u30db\u30c3\u30d4\u30f3\u30b0\u3001\u30b9\u30e9\u30a4\u30c7\u30a3\u30f3\u30b0\u306e\uff13\u3064\u304c\u3042\u308a\u307e\u3059\u3002\u30bf\u30f3\u30d6\u30ea\u30f3\u30b0\u306f\u6c7a\u307e\u3063\u305f\u9593\u9694\u3067\u5b9a\u671f\u7684\u306b\u7e70\u308a\u8fd4\u3055\u308c\u308b\u7a93\u3067\u3059\u3002<\/p>\n<p>\u30db\u30c3\u30d4\u30f3\u30b0\u306f\u5b9a\u671f\u7684\u306b\u7e70\u308a\u8fd4\u3055\u308c\u308b\u70b9\u306f\u30bf\u30f3\u30d6\u30ea\u30f3\u30b0\u3068\u540c\u3058\u3067\u3059\u3002\u9055\u3044\u306f\u30aa\u30fc\u30d0\u30fc\u30e9\u30c3\u30d7\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u4f8b\u3048\u307015\u79d2\u3054\u3068\u306b30\u79d2\u306e\u671f\u9593\u306e\u30ec\u30b3\u30fc\u30c9\u3092\u51e6\u7406\u3059\u308b\u306a\u3069\u3068\u3044\u3046\u5834\u5408\u3067\u3059\u3002Spark Streaming\u306e\u30b9\u30e9\u30a4\u30c7\u30a3\u30f3\u30b0\u30a6\u30a3\u30f3\u30c9\u30a6\u306f\u3053\u308c\u306b\u76f8\u5f53\u3057\u307e\u3059\u3002\u682a\u4fa1\u306e\u79fb\u52d5\u5e73\u5747\u306e\u8a08\u7b97\u306f\u3053\u306e\u65b9\u6cd5\u3067\u8a08\u7b97\u3055\u308c\u308b\u3053\u3068\u304c\u591a\u3044\u3067\u3059\u3002<\/p>\n<p>\u30b9\u30e9\u30a4\u30c7\u30a3\u30f3\u30b0\u30a6\u30a3\u30f3\u30c9\u30a6\u306f\u3001\u30ec\u30b3\u30fc\u30c9\u306e\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u304b\u3089\u904e\u53bbX\u79d2\u3092\u8a08\u7b97\u5bfe\u8c61\u3068\u3059\u308b\u7a93\u95a2\u6570\u3067\u3059\u3002\u3064\u307e\u308a\u30a4\u30d9\u30f3\u30c8\u304c\u767a\u751f\u3059\u308b\u5ea6\u306b\u5b9f\u884c\u3055\u308c\u307e\u3059\u3002Spark Streaming\u306e\u30b9\u30e9\u30a4\u30c7\u30a3\u30f3\u30b0\u30a6\u30a3\u30f3\u30c9\u30a6\u3068\u306f\u5b9a\u7fa9\u304c\u7570\u306a\u308a\u307e\u3059\u306e\u3067\u6ce8\u610f\uff01<\/p>\n<div>\n<div class=\"post-table\">\u7a93\u306e\u30bf\u30a4\u30d7\u30aa\u30fc\u30d0\u30fc\u30e9\u30c3\u30d7\u30ae\u30e3\u30c3\u30d7\u30bf\u30f3\u30d6\u30ea\u30f3\u30b0 Tumbling\u306a\u3057\u306a\u3057\u30db\u30c3\u30d4\u30f3\u30b0 Hopping\u3042\u308a\u8a2d\u5b9a\u6b21\u7b2c\u30b9\u30e9\u30a4\u30c7\u30a3\u30f3\u30b0 Sliding\u30a4\u30d9\u30f3\u30c8\u306e\u767a\u751f\u9593\u9694\u6b21\u7b2c\u30a4\u30d9\u30f3\u30c8\u306e\u767a\u751f\u9593\u9694\u6b21\u7b2c<\/div>\n<\/div>\n<h1>JOIN<\/h1>\n<p>JOIN\u306b\u306f\u6b21\u306e\uff13\u3064\u304c\u3042\u308a\u307e\u3059<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">KStream\u3068KStream: \u3053\u306eJOIN\u306f\u5e38\u306b\u30a6\u30a3\u30f3\u30c9\u30a6\u304c\u9069\u7528\u3055\u308c\u305fJOIN\u3067\u3059\u3002\u7121\u9650\u306e\u30b9\u30c8\u30ea\u30fc\u30e0\u3067\u306f\u8a08\u7b97\u3067\u304d\u307e\u305b\u3093\u306e\u3067\u3002\u65b0\u3057\u3044\u30ec\u30b3\u30fc\u30c9\u304c\u5165\u308b\u5ea6\u3001JOIN\u304c\u5b9f\u884c\u3055\u308c\u307e\u3059\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">KTable\u3068KTable: \u3053\u308c\u306fRDBMS\u306eJOIN\u3068\u4f3c\u3066\u3044\u307e\u3059\u3002\u65b0\u3057\u3044\u30ec\u30b3\u30fc\u30c9\u304c\u5165\u308b\u5ea6\u306bJOIN\u304c\u884c\u308f\u308c\u307e\u3059\u304c\u3001\u7d50\u679c\u306f\u30de\u30c6\u30ea\u30a2\u30e9\u30a4\u30ba\u3055\u308c\u3001\u5e38\u306b\u6700\u65b0\u306e\u72b6\u614b\u304c\u7dad\u6301\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">KStream\u3068KTable: \u3053\u306eJOIN\u306fKStream\u306b\u30ec\u30b3\u30fc\u30c9\u304c\u5165\u308b\u5ea6\u306bKTable\u3092\u30eb\u30c3\u30af\u30a2\u30c3\u30d7\u3059\u308b\u305f\u3081\u306b\u4f7f\u3044\u307e\u3059\u3002\u4f8b\u3048\u3070\u30e6\u30fc\u30b6\u30fc\u306e\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u304cKTable\u306b\u3042\u308a\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u304cKStream\u304b\u3089\u5f97\u3089\u308c\u308b\u3068\u3057\u305f\u3089\u3001JOIN\u3059\u308b\u3053\u3068\u3067\u30e6\u30fc\u30b6\u30fc\u306e\u8a73\u7d30\u304c\u5f97\u3089\u308c\u307e\u3059\u3002<\/ul>\n<div>\n<div class=\"post-table\">\u30c6\u30fc\u30d6\u30eb(INNER) JOINOUTER JOINLEFT JOINKStream-to-KStream\u25cb\u25cb\u25cbKTable-to-KTable\u25cb\u25cb\u25cbKStream-to-KTableN\/AN\/A\u25cb<\/div>\n<\/div>\n<h1>DSL<\/h1>\n<p>\u6587\u6cd5\u3092\u5168\u90e8\u8aac\u660e\u3059\u308b\u306e\u306f\u7121\u7406\u306a\u306e\u3067\u3001\u4e3b\u8981\u306a\u547d\u4ee4\u3068\u3001\u96f0\u56f2\u6c17\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002Java8\u306e\u30e9\u30e0\u30c0\u5f0f\u3068\u4e00\u7dd2\u306b\u4f7f\u3046\u3068\u7c21\u6f54\u306b\u51e6\u7406\u3092\u8a18\u8ff0\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002Spark Streaming+Scala\u3068\u96f0\u56f2\u6c17\u306f\u305d\u3063\u304f\u308a\u3067\u3059\u3002\u30c8\u30e9\u30f3\u30b9\u30d5\u30a9\u30fc\u30e0\u306e\u64cd\u4f5c\u3092\u3059\u308b\u3068KStream\u304cKTable\u306b\u306a\u3063\u305f\u308a\u3001KTable\u3092KStream\u306b\u623b\u3059\u305f\u3081\u306b.toStream()\u3092\u547c\u3093\u3060\u308a\u3059\u308b\u3068\u3053\u308d\u304c\u72ec\u7279\u3067\u3059\u3002<\/p>\n<h2>\u30bd\u30fc\u30b9<\/h2>\n<p>\u4f55\u306f\u306a\u304f\u3068\u3082Kafka\u306b\u63a5\u7d9a\u3057\u306a\u3044\u3068\u59cb\u307e\u308a\u307e\u305b\u3093\u3002KStreamBuilder\u3067KStream\u3068KTable\u3092\u4f5c\u308a\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code>import org.apache.kafka.streams.kstream.KStreamBuilder;\r\nimport org.apache.kafka.streams.kstream.KStream;\r\nimport org.apache.kafka.streams.kstream.KTable;\r\n\r\nKStreamBuilder builder = new KStreamBuilder();\r\n\/\/ PageViews\u30c8\u30d4\u30c3\u30af\u306b\u30b5\u30d6\u30b9\u30af\u30e9\u30a4\u30d6\u3057\u3066KStream\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u308b\r\nKStream&lt;String, GenericRecord&gt; pageViews = builder.stream(\"PageViews\");\r\n\r\n\/\/ UserProfiles\u30c8\u30d4\u30c3\u30af\u306b\u30b5\u30d6\u30b9\u30af\u30e9\u30a4\u30d6\u3057\u3066KTable\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u308b\u3002\r\nKTable&lt;String, GenericRecord&gt; userProfiles = builder.table(\"UserProfiles\");\r\n<\/code><\/pre>\n<h2>\u30c8\u30e9\u30f3\u30b9\u30d5\u30a9\u30fc\u30e0<\/h2>\n<p>\u5927\u6587\u5b57\u306b\u5909\u63db\u3059\u308b\u4f8b\u3067\u3059\u3002Spark Streaming\u3068\u3088\u304f\u4f3c\u3066\u3044\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code>KStream&lt;Long, String&gt; uppercased =\r\n    nicknameByUserId.mapValues(nickname -&gt; nickname.toUpperCase());\r\n<\/code><\/pre>\n<h2>\u96c6\u7d04\u306e\u4f8b<\/h2>\n<p>\u30ef\u30fc\u30c9\u30ab\u30a6\u30f3\u30c8\u306e\u4f8b\u3002\u3053\u308c\u3082Spark Streaming\u306b\u4f3c\u3066\u3044\u307e\u3059<\/p>\n<pre class=\"post-pre\"><code>KStream&lt;String, String&gt; textLines = ...;\r\n\r\nKStream&lt;String, Long&gt; wordCounts = textLines\r\n    \/\/ \u7a7a\u767d\u3067\u533a\u5207\u3063\u3066\u3001\u5c0f\u6587\u5b57\u306b\u6b63\u898f\u5316\u3002\r\n    .flatMapValues(value -&gt; Arrays.asList(value.toLowerCase().split(\"\\\\W+\")))\r\n    .map((key, word) -&gt; new KeyValue&lt;&gt;(word, word))\r\n    \/\/ word\u306e\u6570\u3092\u6570\u3048\u307e\u3059\u3002\u3053\u306e\u64cd\u4f5c\u3067\u306f\u30b9\u30c8\u30ea\u30fc\u30e0\u306e\u30bf\u30a4\u30d7\u304cKStream&lt;String, String&gt;\u304b\u3089\r\n    \/\/ KTable&lt;String, Long&gt; (word -&gt; count)\u306b\u5909\u308f\u308a\u307e\u3059\u3002\u30c6\u30fc\u30d6\u30eb\u306b\u306f\u540d\u524d\u304c\u5fc5\u8981\u3067\r\n    \/\/ Counts\u3068\u540d\u524d\u3092\u3064\u3051\u307e\u3057\u305f\u3002\r\n    .countByKey(\"Counts\")\r\n    \/\/ \u6700\u5f8c\u306bKTable&lt;String, Long&gt;\u3092KStream&lt;String, Long&gt;\u306b\u5909\u63db\r\n    .toStream();\r\n<\/code><\/pre>\n<h2>\u7a93\u95a2\u6570<\/h2>\n<p>\u30bf\u30f3\u30d6\u30ea\u30f3\u30b0\u30a6\u30a3\u30f3\u30c9\u30a6\u306e\u5b9a\u7fa9\u306e\u4f8b\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nc\">KStream<\/span><span class=\"o\">&lt;<\/span><span class=\"nc\">String<\/span><span class=\"o\">,<\/span> <span class=\"nc\">GenericRecord<\/span><span class=\"o\">&gt;<\/span> <span class=\"n\">viewsByUser<\/span> <span class=\"o\">=<\/span> <span class=\"o\">...;<\/span>\r\n\r\n<span class=\"nc\">KTable<\/span><span class=\"o\">&lt;<\/span><span class=\"nc\">Windowed<\/span><span class=\"o\">&lt;<\/span><span class=\"nc\">String<\/span><span class=\"o\">&gt;,<\/span> <span class=\"nc\">Long<\/span><span class=\"o\">&gt;<\/span> <span class=\"n\">userCounts<\/span> <span class=\"o\">=<\/span>\r\n    <span class=\"c1\">\/\/ 1\u5206\u3054\u3068\u306b5\u5206\u306e\u9577\u3055\u306e\u7a93\u95a2\u6570\u3092\u9069\u7528\u3057\u3066\u30ab\u30a6\u30f3\u30c8<\/span>\r\n    <span class=\"n\">viewsByUser<\/span><span class=\"o\">.<\/span><span class=\"na\">countByKey<\/span><span class=\"o\">(<\/span><span class=\"nc\">TimeWindows<\/span><span class=\"o\">.<\/span><span class=\"na\">of<\/span><span class=\"o\">(<\/span><span class=\"s\">\"GeoPageViewsWindow\"<\/span><span class=\"o\">,<\/span> <span class=\"mi\">5<\/span> <span class=\"o\">*<\/span> <span class=\"mi\">60<\/span> <span class=\"o\">*<\/span> <span class=\"mi\">1000L<\/span><span class=\"o\">).<\/span><span class=\"na\">advanceBy<\/span><span class=\"o\">(<\/span><span class=\"mi\">60<\/span> <span class=\"o\">*<\/span> <span class=\"mi\">1000L<\/span><span class=\"o\">));<\/span>\r\n<\/code><\/pre>\n<h2>JOIN<\/h2>\n<p>JOIN\u306e\u4f8b\u3067\u3059\u3002userClicksStream\u306b\u306f(user, clicks)\u304c\u5165\u3063\u3066\u304d\u307e\u3059\u3002userRegionsTable\u306f(user, region)\u304c\u5165\u3063\u3066\u3044\u307e\u3059\u3002user\u3092\u30ad\u30fc\u306bLEFT JOIN\u3059\u308b\u4f8b\u3067\u3059\u3002Java\u306fScala\u3068\u9055\u3063\u3066\u30bf\u30d7\u30eb\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u306a\u3044\u306e\u3067RegionWithClicks\u3068\u3044\u3046\u30af\u30e9\u30b9\u3092\u5225\u9014\u5b9a\u7fa9\u3057\u3066\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u8fd4\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code>KStream&lt;String, Long&gt; userClicksStream =  ...;\r\nKTable&lt;String, String&gt; userRegionsTable = ...;\r\n\r\nKStream&lt;String, RegionWithClicks&gt; userClicksWithRegion = userClicksStream\r\n    .leftJoin(userRegionsTable,\r\n      (clicks, region) -&gt; new RegionWithClicks(region == null ? \"UNKNOWN\" : region, clicks));\r\n<\/code><\/pre>\n<h2>\u72ec\u81ea\u30d7\u30ed\u30bb\u30c3\u30b5\u306e\u4f5c\u308a\u65b9\u3068\u9069\u7528<\/h2>\n<p>\u30d7\u30ed\u30bb\u30c3\u30b5\u3092\u4f5c\u308b\u306b\u306fProcessor\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u5b9f\u88c5\u3057\u305f\u30af\u30e9\u30b9\u3092\u4f5c\u308a\u3001.process( () -&gt; new MyProcessor())\u3068\u3059\u308b\u3060\u3051\u3067\u3059\u3002\u8a73\u7d30\u306f\u30de\u30cb\u30e5\u30a2\u30eb\u3092\u3054\u3089\u3093\u304f\u3060\u3055\u3044&#8230;\u3002<\/p>\n<h2>Kafka\u3078\u30d1\u30d6\u30ea\u30c3\u30b7\u30e5<\/h2>\n<p>\u305d\u3057\u3066\u6700\u5f8c\u306bKafka\u306b\u51e6\u7406\u7d50\u679c\u3092\u66f8\u304d\u623b\u3057\u307e\u3059\u3002userCountByRegion\u30b9\u30c8\u30ea\u30fc\u30e0\u3092Kafka\u306eRegionCountsTopic\u306b\u30d1\u30d6\u30ea\u30c3\u30b7\u30e5\u3059\u308b\u4f8b\u3002\u3053\u308c\u306f\u5c02\u7528DSL\u306a\u306e\u3067\u7c21\u5358\u3067\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code>userCountByRegion.to(\"RegionCountsTopic\");\r\n<\/code><\/pre>\n<h1>\u307e\u3068\u3081<\/h1>\n<p>\u4ee5\u4e0a\u99c6\u3051\u8db3\u3067Kafka-Streams\u306e\u7d39\u4ecb\u3092\u884c\u3044\u307e\u3057\u305f\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Kafka\u304b\u3089\u30ec\u30b3\u30fc\u30c9\u3092\u8aad\u307f\u8fbc\u3093\u3067\u3001\u51e6\u7406\u3092\u884c\u3044\u3001Kafka\u306e\u5225\u306e\u30c8\u30d4\u30c3\u30af\u306b\u30d1\u30d6\u30ea\u30c3\u30b7\u30e5\u3067\u304d\u308b<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Kafka\u5c02\u7528\u306eDSL\u306a\u306e\u3067Spark\u3068\u9055\u3044Kafka\u3078\u306e\u63a5\u7d9a\u3001\u969c\u5bb3\u56de\u5fa9\u51e6\u7406\u306a\u3069\u304c\u5168\u3066\u7528\u610f\u3055\u308c\u3066\u3044\u308b\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u30a2\u30d7\u30ea\u306e\u66f8\u304d\u65b9\u306fSpark Streaming\u306b\u3088\u304f\u4f3c\u3066\u3044\u308b\u304cKafka\u4ee5\u5916\u5916\u90e8\u306e\u30b7\u30b9\u30c6\u30e0\u306b\u4f9d\u5b58\u3057\u306a\u3044\u306e\u3067\u958b\u767a\u3082\u30c7\u30d7\u30ed\u30a4\u3082\u697d\u3002<\/ul>\n<p>\u30a2\u30d7\u30ea\u306e\u6d41\u308c\u306f\u6b21\u306e\u901a\u308a\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30b9\u30c8\u30ea\u30fc\u30e0\u306fKStreamBuilder\u3067\u4f5c\u308b<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30b9\u30c8\u30ea\u30fc\u30e0\u306e\u30bf\u30a4\u30d7\u306fKStream\u3068KTable\u304c\u3042\u308b\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>builder.stream(&#8220;sourceTopic&#8221;)<br \/>\nbuilder.table(&#8220;sourceTopic&#8221;)<\/p>\n<p>KTable\u306f\u30b9\u30c6\u30fc\u30c8(\u72b6\u614b)\u306e\u7dad\u6301\u306b\u3082\u4f7f\u3048\u308b<br \/>\n\u30b9\u30c8\u30ea\u30fc\u30e0\u306fJOIN\u3067\u304d\u308b<br \/>\n\u30b9\u30c8\u30ea\u30fc\u30e0\u306f\u96c6\u7d04\u3067\u304d\u308b<\/p>\n<p>\u96c6\u7d04\u306b\u306f\u7a93\u3092\u9069\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002<\/p>\n<p>\u30c8\u30e9\u30f3\u30b9\u30d5\u30a9\u30fc\u30e0\u306e\u64cd\u4f5c\u306b\u3088\u3063\u3066KStream\u304cKTable\u306b\u306a\u308b\u3053\u3068\u304c\u3042\u308b\u3002<br \/>\nKTable\u306f.toStream()\u3067KStream\u306b\u306a\u308b<br \/>\n\u72ec\u81ea\u51e6\u7406\u306fstream.process()\u3067\u547c\u3073\u51fa\u305b\u308b<br \/>\nstream.to(&#8220;sinkTopic&#8221;)\u3067Kafka\u306b\u30d1\u30d6\u30ea\u30c3\u30b7\u30e5<\/p>\n<h1>\u51fa\u5178<\/h1>\n<p>\u3053\u306e\u8a18\u4e8b\u306e\u5185\u5bb9\u306fApache Kafka\u306e\u30de\u30cb\u30e5\u30a2\u30eb\u3068\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3092\u5143\u306b\u50d5\u306e\u7406\u89e3\u3067\u66f8\u304d\u307e\u3057\u305f\u3002<br \/>\n\u307e\u305f\u6b21\u306e\u30d6\u30ed\u30b0\u3082\u53c2\u8003\u306b\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>https:\/\/kafka.apache.org\/documentation#streams<br \/>\nhttp:\/\/docs.confluent.io\/3.1.1\/streams\/<br \/>\nhttps:\/\/www.confluent.io\/blog\/introducing-kafka-streams-stream-processing-made-simple\/<\/p>\n<h1>\u304a\u307e\u3051<\/h1>\n<p>Kafka 0.10.1\u3067\u306f\u30af\u30a8\u30ea\u30fc\u6a5f\u80fd\u304c\u4ed8\u3044\u3066\u3044\u308b\u305d\u3046\u3067\u3059\u3002Kafka Streams\u304c\u6301\u3064\u30ed\u30fc\u30ab\u30eb\u30b9\u30c8\u30a2\u306e\u5185\u5bb9\u3092\u30af\u30a8\u30ea\u30fc\u3067\u554f\u3044\u5408\u308f\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u8aad\u307f\u51fa\u3057\u5c02\u7528\u3067\u66f8\u304d\u8fbc\u307f\u306f\u3067\u304d\u307e\u305b\u3093\u3002REST API\u3092\u30a2\u30d7\u30ea\u306b\u7d44\u307f\u8fbc\u3081\u3070\u5916\u90e8\u304b\u3089\u554f\u3044\u5408\u308f\u305b\u3082\u53ef\u80fd\u3068\u306a\u308a\u307e\u3059\u3002\u3053\u3053\u306fSpark Streaming\u304b\u3089\u4e00\u6b69\u9032\u3093\u3060\u6a5f\u80fd\u3067\u3057\u3087\u3046\u3002\u50d5\u81ea\u8eab\u8a66\u3057\u3066\u3044\u306a\u3044\u306e\u3067\u78ba\u304b\u306a\u3053\u3068\u306f\u8a00\u3048\u307e\u305b\u3093\u304c\u3001\u8208\u5473\u3092\u6301\u305f\u308c\u305f\u65b9\u306f\u6b21\u306e\u8a18\u4e8b\u3068Github\u306e\u30b3\u30fc\u30c9\u3092\u53c2\u7167\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u300c\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0TOP 10 \u30d2\u30c3\u30c8\u30c1\u30e3\u30fc\u30c8\u300d\u306e\u3088\u3046\u306a\u554f\u3044\u5408\u308f\u305b\u304c\u3067\u304d\u308b\u3088\u3046\u3067\u3059\u3002<\/p>\n<p>https:\/\/www.confluent.io\/blog\/unifying-stream-processing-and-interactive-queries-in-apache-kafka\/<br \/>\nhttps:\/\/github.com\/confluentinc\/examples\/blob\/master\/kafka-streams\/src\/main\/java\/io\/confluent\/examples\/streams\/interactivequeries\/kafkamusic\/KafkaMusicExample.java<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Data Integration as Service: Kafka-Streams\u306e\u7d39\u4ecb \u30a2\u30c9\u30d9\u30f3\u30c8\u30ab\u30ec\u30f3\u30c0 [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-46841","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>- Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" 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