{"id":46753,"date":"2023-08-27T04:42:56","date_gmt":"2023-02-24T13:49:00","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/46753-2\/"},"modified":"2024-04-30T20:16:40","modified_gmt":"2024-04-30T12:16:40","slug":"46753-2","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/46753-2\/","title":{"rendered":""},"content":{"rendered":"<p>\u3053\u306e\u8a18\u4e8b\u306fKafka Advent Calendar 2021\u306e3\u65e5\u76ee\u306e\u8a18\u4e8b\u3067\u3059\u3002<\/p>\n<p>Kafka Streams \u3067\u30b9\u30c6\u30fc\u30c8\u30d5\u30eb\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u958b\u767a\u3059\u308b\u969b\u3001Kafka \u5916\u306e\u30c7\u30fc\u30bf\u30b9\u30c8\u30a2\u3092\u4f7f\u3063\u3066\u3057\u307e\u3046\u3068 Kafka Streams \u304c\u6301\u3064\u30d5\u30a9\u30fc\u30eb\u30c8\u30c8\u30ec\u30e9\u30f3\u30b9\u3084\u51e6\u7406\u306e\u4fdd\u8a3c\u306a\u3069\u306e\u6a5f\u80fd\u3092\u6d3b\u304b\u3057\u5207\u308c\u305a\u3001\u7af6\u5408\u72b6\u614b\u3084\u30ea\u30c8\u30e9\u30a4\u306a\u3069\u6ce8\u610f\u70b9\u304c\u591a\u304f\u767a\u751f\u3057\u307e\u3059\u3002Kafka \u81ea\u4f53\u3092\u30c7\u30fc\u30bf\u30b9\u30c8\u30a2\u3068\u3059\u308b\u3053\u3068\u3067\u3001Kafka Streams \u306e\u5229\u70b9\u3092\u6d3b\u304b\u305b\u308b\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u30d1\u30bf\u30fc\u30f3\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n<h2>Kafka Streams<\/h2>\n<p>Kafka Streams \u3068\u306f Kafka \u306e\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3068\u30b3\u30f3\u30b7\u30e5\u30fc\u30de\u3092\u5229\u7528\u3057\u3001Kafka \u30c8\u30d4\u30c3\u30af\u4e0a\u3092\u6d41\u308c\u308b\u30c7\u30fc\u30bf\u306b\u5bfe\u3059\u308b\u30c8\u30dd\u30ed\u30b8\u30fc\uff08\u7d50\u5408\u3001\u5909\u63db\u306a\u3069\uff09\u3092\u5b9a\u7fa9\u3057\u3001\u30b9\u30c8\u30ea\u30fc\u30e0\u51e6\u7406\u304c\u51fa\u6765\u308b\u30e9\u30a4\u30d6\u30e9\u30ea\u3067\u3059\u3002<\/p>\n<p>\u3042\u308b\u30c8\u30d4\u30c3\u30af\u306b\u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u914d\u4fe1\u3055\u308c\u305f\u3089\u305d\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u51e6\u7406\u3057\u3001\u7d50\u679c\u3092\u5225\u306e\u30c8\u30d4\u30c3\u30af\u306b\u914d\u4fe1\u3059\u308b\u3001\u3068\u3044\u3046\u3088\u3046\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u958b\u767a\u51fa\u6765\u307e\u3059\u3002<\/p>\n<h2>KStream \u3068 KTable<\/h2>\n<p>Kafka \u30c8\u30d4\u30c3\u30af\u4e0a\u3092\u6d41\u308c\u308b\u30c7\u30fc\u30bf\u306f\u30ad\u30fc\u3068\u5024\u306e\u7d44\u307f\u5408\u308f\u305b\u3067\u3059\u304c\u3001\u305d\u308c\u306b\u306f\u4e8c\u3064\u306e\u610f\u5473\u4ed8\u3051\u304c\u53ef\u80fd\u3067\u3059\u3002\u30ad\u30fc\u3092\u3042\u308b\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306e ID \u3068\u3059\u308b\u3068\u3001<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Changelog stream &#8230; \u5024\u306f\u305d\u306e\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u81ea\u4f53\u306e\u6700\u65b0\u5024<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">Record stream &#8230; \u5024\u306f\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306b\u5bfe\u3059\u308b\u4f55\u3089\u304b\u306e\u30a4\u30d9\u30f3\u30c8<\/ul>\n<p>\u305d\u3057\u3066 Kafka Streams \u3067\u3053\u308c\u3089\u3092\u62bd\u8c61\u5316\u3057\u305f\u3082\u306e\u304c\u305d\u308c\u305e\u308c Changelog stream -&gt; KTable \u3068 Record stream -&gt; KStream \u3067\u3059\u3002Kafka Stream \u3067\u306f KTable \u3068 KStream \u3092\u30c8\u30dd\u30ed\u30b8\u30fc\u306e\u5165\u529b\u3068\u3057\u3066\u4f7f\u3046\u3053\u3068\u304c\u51fa\u6765\u307e\u3059\u3002\u30b9\u30c8\u30ea\u30fc\u30e0\u51e6\u7406\u306f\u4e00\u3064\u4ee5\u4e0a\u306e KStream \u304b\u3089\u59cb\u307e\u308a\u307e\u3059\u3002KTable \u306f\u30b9\u30c8\u30ea\u30fc\u30e0\u51e6\u7406\u306e\u59cb\u70b9\u306b\u306f\u306a\u308a\u307e\u305b\u3093\u304c KStream \u306b\u7d50\u5408\u3059\u308b\u3053\u3068\u3067\u30c8\u30dd\u30ed\u30b8\u30fc\u5185\u3067\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306e\u30b9\u30ca\u30c3\u30d7\u30b7\u30e7\u30c3\u30c8\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002<\/p>\n<h2>KTable \u306b\u3088\u308b\u72b6\u614b\u7ba1\u7406<\/h2>\n<p>\u4e0a\u8ff0\u306e\u901a\u308a Kafka Streams \u3067\u72b6\u614b\u3092\u6271\u3046\u4e00\u756a\u57fa\u672c\u7684\u306a\u65b9\u6cd5\u306f KTable \u3067\u3059\u3002\u30c8\u30dd\u30ed\u30b8\u30fc\u5185\u3067 KTable \u304b\u3089\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306e\u30b9\u30ca\u30c3\u30d7\u30b7\u30e7\u30c3\u30c8\u3092\u53d6\u5f97\u3057\u3001\u8a08\u7b97\u3057\u305f\u65b0\u72b6\u614b\u3092 KTable \u306e\u30c8\u30d4\u30c3\u30af\u306b\u518d\u3073\u914d\u4fe1\u3059\u308b\u3053\u3068\u3067\u305d\u306e\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3092\u66f4\u65b0\u3057\u3066\u3044\u304f\u3053\u3068\u304c\u51fa\u6765\u307e\u3059\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d668d37434c4406d0a8fa\/12-0.png\" alt=\"Screen Shot 2021-12-04 at 5.51.11 AM.png\" \/><\/div>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Event topic &#8230; Record stream \u306e\u30bd\u30fc\u30b9\u30c8\u30d4\u30c3\u30af\u3002\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306b\u5bfe\u3059\u308b\u30a4\u30d9\u30f3\u30c8\u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u914d\u4fe1\u3055\u308c\u308b\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">Entity topic &#8230; changelog stream \u306e\u30bd\u30fc\u30b9\u30c8\u30d4\u30c3\u30af\u3002\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306e\u30b9\u30ca\u30c3\u30d7\u30b7\u30e7\u30c3\u30c8\u3092\u914d\u4fe1\u3059\u308b\u3002<\/ul>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>Event topic \u306b\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306e\u66f4\u65b0\u3092\u4f34\u3046\u30a4\u30d9\u30f3\u30c8\u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u914d\u4fe1\u3055\u308c\u308b\u3002\u3053\u3053\u3067\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u30ad\u30fc\u306f Entity ID\u3002<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>Event topic \u3092\u30bd\u30fc\u30b9\u3068\u3059\u308b KStream \u304b\u3089\u30b9\u30c8\u30ea\u30fc\u30e0\u51e6\u7406\u3092\u958b\u59cb\u3002<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>Entity topic \u3092\u30bd\u30fc\u30b9\u3068\u3059\u308b KTable \u3092 LEFT JOIN \u3057\u3001Entity topic \u4e0a\u306e\u540c\u4e00\u30ad\u30fc\u3092\u6301\u3064\u6700\u65b0\uff08\u53b3\u5bc6\u306b\u306f\u5c11\u3057\u9055\u3046\u203b\u5f8c\u8ff0\uff09\u306e\u30b9\u30ca\u30c3\u30d7\u30b7\u30e7\u30c3\u30c8\u3092\u7d50\u5408\u3059\u308b\u3002<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306e\u5024\u3068\u30a4\u30d9\u30f3\u30c8\u3092\u57fa\u306b\u65b0\u3057\u3044\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306b\u5909\u63db\uff08MAP VALUES\uff09<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\u6700\u65b0\u306e\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3092 Entity \u30c8\u30d4\u30c3\u30af\u306b\u914d\u4fe1<\/ol>\n<p>\u3053\u306e\u30d1\u30bf\u30fc\u30f3\u306a\u3089\u72b6\u614b\u66f4\u65b0\u306e\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u7ba1\u7406\u3092 Kafka Streams \u306b\u59d4\u306d\u308b\u3053\u3068\u304c\u51fa\u6765\u3001\u30ea\u30c8\u30e9\u30a4\u3084\u30c7\u30fc\u30bf\u5fa9\u65e7\u306a\u3069\u3082\u7c21\u5358\u306b\u884c\u3046\u3053\u3068\u304c\u51fa\u6765\u307e\u3059\u3002<\/p>\n<h2>KTable \u306b\u3088\u308b\u72b6\u614b\u7ba1\u7406\u306e\u554f\u984c<\/h2>\n<p>\u3057\u304b\u3057\u4e0a\u8a18\u306e\u30c8\u30dd\u30ed\u30b8\u30fc\u306b\u306f\u4e00\u3064\u554f\u984c\u304c\u3042\u308a\u307e\u3059\u3002\u554f\u984c\u306f Event \u30c8\u30d4\u30c3\u30af\u4e0a\u3067\u540c\u4e00\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306b\u5bfe\u3059\u308b\u30a4\u30d9\u30f3\u30c8\u304c\u8907\u6570\u540c\u6642\u306b\u5165\u529b\u3055\u308c\u305f\u5834\u5408\u306b\u3001\u4e0a\u8a18\u30b9\u30c6\u30c3\u30d73\u3067\u8d77\u3053\u308a\u307e\u3059\u3002Kafka Streams \u306e LEFT JOIN \u306e\u6319\u52d5\u3068\u3057\u3066\u6700\u65b0\u306e\u30b9\u30ca\u30c3\u30d7\u30b7\u30e7\u30c3\u30c8\u304c\u7d50\u5408\u3055\u308c\u308b\u3068\u8ff0\u3079\u307e\u3057\u305f\u304c\u3001\u53b3\u5bc6\u306b\u306f LEFT JOIN \u306f\u30a4\u30f3\u30d7\u30c3\u30c8\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u30ec\u30b3\u30fc\u30c9\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u306b\u57fa\u3065\u304d\u884c\u308f\u308c\u307e\u3059\u3002\u3064\u307e\u308a\u3001KTable \u304b\u3089\u7d50\u5408\u3055\u308c\u308b\u306e\u306f Event \u30c8\u30d4\u30c3\u30af\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u304b\u3089\u898b\u3066\u6700\u8fd1\u904e\u53bb\u306e\u30b9\u30ca\u30c3\u30d7\u30b7\u30e7\u30c3\u30c8\u3067\u3059\u3002Kafka Streams \u306f\u540c\u4e00\u30ad\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u306b\u5bfe\u3057\u3066\u306f\u9806\u6b21\u51e6\u7406\u3092\u884c\u3044\u307e\u3059\u304c\u3001\u30ec\u30b3\u30fc\u30c9\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u306f\u3042\u304f\u307e\u3067\u305d\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u914d\u4fe1\u3055\u308c\u305f\u6642\u9593\u3068\u306a\u308a\u307e\u3059\u3002\u305d\u306e\u305f\u3081 Event \u30c8\u30d4\u30c3\u30af\u306b\u4e00\u3064\u76ee\u306e\u30a4\u30d9\u30f3\u30c8\u304c\u914d\u4fe1\u3055\u308c\u3001Kafka Streams \u304c\u305d\u306e\u51e6\u7406\u3092\u7d42\u3048\u308b\u524d\u306b\u6b21\u306e\u30a4\u30d9\u30f3\u30c8\u304c\u914d\u4fe1\u3055\u308c\u3066\u3057\u307e\u3046\u3068\u3001\u4e8c\u3064\u76ee\u306e\u30a4\u30d9\u30f3\u30c8\u306e\u30ec\u30b3\u30fc\u30c9\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u304c\u6700\u65b0\u30b9\u30ca\u30c3\u30d7\u30b7\u30e7\u30c3\u30c8\u3088\u308a\u904e\u53bb\u306b\u306a\u3063\u3066\u3057\u307e\u3046\u305f\u3081\u3001\u4e00\u3064\u524d\u306e\u30b9\u30ca\u30c3\u30d7\u30b7\u30e7\u30c3\u30c8\u304c\u7d50\u5408\u3055\u308c\u3066\u3057\u307e\u3046\u306e\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u4e8c\u3064\u76ee\u306e\u30a4\u30d9\u30f3\u30c8\u306e\u51e6\u7406\u6642\u306b LEFT JOIN \u3067\u4e00\u3064\u53e4\u3044\u30b9\u30ca\u30c3\u30d7\u30b7\u30e7\u30c3\u30c8\u304c\u7d50\u5408\u3055\u308c\u3066\u3057\u307e\u3044\u3001\u7af6\u5408\u72b6\u614b\u3092\u5f15\u304d\u8d77\u3053\u3057\u307e\u3059\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d668d37434c4406d0a8fa\/18-0.png\" alt=\"Screen Shot 2021-12-04 at 2.30.58 PM.png\" \/><\/div>\n<p>\u3053\u306e LEFT JOIN \u306e\u6319\u52d5\u306f\u30ea\u30c8\u30e9\u30a4\u6642\u306e\u51e6\u7406\u3092\u6c7a\u5b9a\u8ad6\u7684\u306b\u3059\u308b\u305f\u3081\u6b63\u3057\u3044\u3082\u306e\u3067\u3059\u304c\u3001KTable \u3067\u72b6\u614b\u7ba1\u7406\u3059\u308b\u305f\u3081\u306e\u969c\u5bb3\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u89e3\u6c7a\u7b56\u3068\u3057\u3066\u306f Kafka Streams \u306b\u3066\u30ec\u30b3\u30fc\u30c9\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u3092\u6c7a\u5b9a\u3059\u308b\u95a2\u6570\uff08timestamp.extractor\uff09\u3092\u5e38\u306b\u6700\u65b0\u306e\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u3092\u8fd4\u3059\u3088\u3046\u306b\u5dee\u3057\u66ff\u3048\u308b\u3053\u3068\u3082\u51fa\u6765\u307e\u3059\u304c\u3001\u5f71\u97ff\u304c\u5927\u304d\u3044\u305f\u3081\u3042\u307e\u308a\u3084\u308a\u305f\u304f\u3042\u308a\u307e\u305b\u3093\u3002<br \/>\nhttps:\/\/docs.confluent.io\/platform\/current\/streams\/developer-guide\/config-streams.html#streams-developer-guide-timestamp-extractor<\/p>\n<p>\u305d\u3053\u3067 Kafka(Kafka Streams) \u5185\u3067\u5b8c\u7d50\u3059\u308b\u89e3\u6c7a\u65b9\u6cd5\u3068\u3057\u3066\u3001StateStore \u3092\u5229\u7528\u3057\u307e\u3059\u3002<\/p>\n<h2>KTable, StateStore \u306b\u3088\u308b\u72b6\u614b\u7ba1\u7406<\/h2>\n<p>StateStore \u306f Kafka Streams \u306e\u5b9f\u30d7\u30ed\u30bb\u30b9\u3067\u3042\u308b Stream Processor \u306b\u304a\u3051\u308b\u30b9\u30c8\u30ec\u30fc\u30b8\u30a8\u30f3\u30b8\u30f3\u3067\u3059\u3002\u3044\u304f\u3064\u304b\u5b9f\u88c5\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u6700\u3082\u5358\u7d14\u306b\u30ad\u30fc\u30d0\u30ea\u30e5\u30fc\u30b9\u30c8\u30a2\uff08KeyValueStore\uff09\u3092\u5229\u7528\u3059\u308c\u3070\u3001\u5024\u306e\u5373\u6642\u8aad\u307f\u66f8\u304d\u304c\u53ef\u80fd\u306a\u306e\u3067\u3001\u554f\u984c\u306e\u7af6\u5408\u72b6\u614b\u306b\u5bfe\u3059\u308b\u56de\u907f\u7b56\u3068\u3057\u3066\u5229\u7528\u3067\u304d\u307e\u3059\u3002\u4eee\u306b\u4e8c\u3064\u76ee\u306e\u30a4\u30d9\u30f3\u30c8\u304c\u30b9\u30c8\u30ea\u30fc\u30e0\u51e6\u7406\u304c\u5b8c\u4e86\u3059\u308b\u524d\u306b\u767a\u751f\u3057\u3066\u3082\u3001\u540c\u4e00\u30ad\u30fc\u306b\u5bfe\u3059\u308b\u30b9\u30c8\u30ea\u30fc\u30e0\u51e6\u7406\u306f\u9806\u6b21\u884c\u308f\u308c\u308b\u305f\u3081\u3001\u4e8c\u3064\u76ee\u306e\u30a4\u30d9\u30f3\u30c8\u306e\u51e6\u7406\u958b\u59cb\u6642\u306b\u306f\u65e2\u306b StateStore \u306b\u6700\u65b0\u30b9\u30ca\u30c3\u30d7\u30b7\u30e7\u30c3\u30c8\u304c\u5b58\u5728\u3059\u308b\u305f\u3081\u3001\u305d\u308c\u3092\u4f7f\u3048\u3070\u7af6\u5408\u72b6\u614b\u3092\u56de\u907f\u51fa\u6765\u307e\u3059\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d668d37434c4406d0a8fa\/24-0.png\" alt=\"Screen Shot 2021-12-04 at 2.41.04 PM.png\" \/><\/div>\n<p>\u3053\u306e\u5834\u5408\u3001KTable \u306f\u5fc5\u8981\u306a\u306e\u304b\u3068\u3044\u3046\u7591\u554f\u304c\u3042\u308a\u307e\u3059\u304c\u3001StateStore \u306f\u5404 Stream Processor \u306e\u5185\u90e8\u30b9\u30c8\u30ec\u30fc\u30b8\u3067\u3042\u308b\u305f\u3081\u3001\u5225\u306e\u30c8\u30dd\u30ed\u30b8\u30fc\u304b\u3089\u306e\u8aad\u307f\u51fa\u3057\u304c\u51fa\u6765\u307e\u305b\u3093\u3002\u305d\u306e\u305f\u3081 StateStore \u306f\u3042\u304f\u307e\u3067\u3082\u7af6\u5408\u72b6\u614b\u3092\u56de\u907f\u3059\u308b\u305f\u3081\u3060\u3051\u306e\u4e00\u6642\u72b6\u614b\u306e\u305f\u3081\u3060\u3051\u306b\u4f7f\u3044\u3001\u5b9f\u969b\u306e\u30b9\u30c8\u30ec\u30fc\u30b8\u306f KTable \u306e\u30bd\u30fc\u30b9\u30c8\u30d4\u30c3\u30af\u3068\u8003\u3048\u307e\u3057\u3087\u3046\u3002<br \/>\n\u305f\u3060\u3057\u3001StateStore \u81ea\u4f53\u3082 Stream Processor \u304c\u5185\u90e8\u30c8\u30d4\u30c3\u30af\u3092\u4f5c\u6210\u3057\u3066\u30c7\u30fc\u30bf\u3092 Changelog stream \u3068\u3057\u3066\u914d\u4fe1\u3059\u308b\u3053\u3068\u3067\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u3055\u308c\u3066\u304a\u308a\u3001Stream Processor \u306e\u518d\u8d77\u52d5\u6642\u306b\u306f\u81ea\u52d5\u3067\u30c7\u30fc\u30bf\u304c\u5fa9\u5143\u3055\u308c\u307e\u3059\u3002<\/p>\n<h2>Clojure \u3067\u66f8\u3044\u3066\u307f\u308b<\/h2>\n<p>\u5225\u8a18\u4e8b\u306b\u66f8\u304d\u307e\u3059\u3002<\/p>\n<h2>\u307e\u3068\u3081<\/h2>\n<p>Kafka Streams \u3067\u72b6\u614b\u3092\u6301\u3064\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u4f5c\u308b\u30d1\u30bf\u30fc\u30f3\u3068\u8d77\u3053\u308a\u5f97\u308b\u7af6\u5408\u72b6\u614b\u3001\u305d\u306e\u89e3\u6c7a\u65b9\u6cd5\u306b\u3064\u3044\u3066\u66f8\u304d\u307e\u3057\u305f\u3002\u7279\u6bb5\u73cd\u3057\u3044\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u3067\u306f\u306a\u3044\u3068\u306f\u601d\u3046\u306e\u3067\u3059\u304c\u3001\u306a\u304b\u306a\u304b\u554f\u984c\u3068\u305d\u306e\u89e3\u6c7a\u65b9\u6cd5\u304c\u9762\u5012\u3060\u3063\u305f\u306e\u3067\u3001\u3088\u308a\u3088\u3044\u89e3\u6c7a\u65b9\u6cd5\u304c\u3042\u308c\u3070\u6559\u3048\u3066\u4e0b\u3055\u3044\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u3053\u306e\u8a18\u4e8b\u306fKafka Advent Calendar 2021\u306e3\u65e5\u76ee\u306e\u8a18\u4e8b\u3067\u3059\u3002 Kafka Streams [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-46753","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\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/46753-2\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:description\" content=\"\u3053\u306e\u8a18\u4e8b\u306fKafka Advent Calendar 2021\u306e3\u65e5\u76ee\u306e\u8a18\u4e8b\u3067\u3059\u3002 Kafka 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