{"id":26488,"date":"2024-03-17T07:15:57","date_gmt":"2024-03-16T22:15:57","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/spark%e3%81%af%e3%81%a9%e3%81%ae%e3%82%88%e3%81%86%e3%81%ab%e3%81%97%e3%81%a6kafka%e3%81%8b%e3%82%89%e3%83%87%e3%83%bc%e3%82%bf%e3%82%92%e8%aa%ad%e3%81%bf%e8%be%bc%e3%82%80%e3%81%8b%ef%bc%9f\/"},"modified":"2024-03-22T13:59:03","modified_gmt":"2024-03-22T04:59:03","slug":"spark%e3%81%af%e3%81%a9%e3%81%ae%e3%82%88%e3%81%86%e3%81%ab%e3%81%97%e3%81%a6kafka%e3%81%8b%e3%82%89%e3%83%87%e3%83%bc%e3%82%bf%e3%82%92%e8%aa%ad%e3%81%bf%e8%be%bc%e3%82%80%e3%81%8b%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/spark%e3%81%af%e3%81%a9%e3%81%ae%e3%82%88%e3%81%86%e3%81%ab%e3%81%97%e3%81%a6kafka%e3%81%8b%e3%82%89%e3%83%87%e3%83%bc%e3%82%bf%e3%82%92%e8%aa%ad%e3%81%bf%e8%be%bc%e3%82%80%e3%81%8b%ef%bc%9f\/","title":{"rendered":"spark\u306f\u3069\u306e\u3088\u3046\u306b\u3057\u3066kafka\u304b\u3089\u30c7\u30fc\u30bf\u3092\u8aad\u307f\u8fbc\u3080\u304b\uff1f"},"content":{"rendered":"<p>\u30b9\u30d1\u30fc\u30af\u3067\u306e\u30ab\u30d5\u30ab\u30c7\u30fc\u30bf\u306e\u8aad\u307f\u8fbc\u307f\u306b\u306f\u3001\u30b9\u30d1\u30fc\u30af\u306e\u516c\u5f0fKafka\u7d71\u5408\u30e9\u30a4\u30d6\u30e9\u30ea\u3067\u3042\u308b\u30b9\u30d1\u30fc\u30af\u30b9\u30c8\u30ea\u30fc\u30df\u30f3\u30b0\u30ab\u30d5\u30ab\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u6700\u521d\u306b\u3001Spark\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306bSpark Streaming Kafka\u306e\u4f9d\u5b58\u95a2\u4fc2\u3092\u8ffd\u52a0\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002Maven\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u5834\u5408\u3001\u4ee5\u4e0b\u306e\u4f9d\u5b58\u95a2\u4fc2\u3092pom.xml\u30d5\u30a1\u30a4\u30eb\u306b\u8ffd\u52a0\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">dependency<\/span>&gt;<\/span>\r\n    <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">groupId<\/span>&gt;<\/span>org.apache.spark<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">groupId<\/span>&gt;<\/span>\r\n    <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">artifactId<\/span>&gt;<\/span>spark-streaming-kafka-0-10_2.12<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">artifactId<\/span>&gt;<\/span>\r\n    <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">version<\/span>&gt;<\/span>3.0.2<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">version<\/span>&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">dependency<\/span>&gt;<\/span>\r\n<\/code><\/pre>\n<p>\u305d\u306e\u5f8c\u3001SparkSession\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f7f\u7528\u3057\u3066StreamingContext\u3092\u4f5c\u6210\u3057\u3001\u30d0\u30c3\u30c1\u51e6\u7406\u306e\u9593\u9694\u3092\u6307\u5b9a\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">import<\/span> org.apache.spark.SparkConf;\r\n<span class=\"hljs-keyword\">import<\/span> org.apache.spark.streaming.Durations;\r\n<span class=\"hljs-keyword\">import<\/span> org.apache.spark.streaming.api.java.JavaInputDStream;\r\n<span class=\"hljs-keyword\">import<\/span> org.apache.spark.streaming.api.java.JavaStreamingContext;\r\n<span class=\"hljs-keyword\">import<\/span> org.apache.spark.streaming.kafka010.KafkaUtils;\r\n<span class=\"hljs-keyword\">import<\/span> org.apache.kafka.common.serialization.StringDeserializer;\r\n\r\n<span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title class_\">KafkaStreamingExample<\/span> {\r\n    <span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">static<\/span> <span class=\"hljs-keyword\">void<\/span> <span class=\"hljs-title function_\">main<\/span><span class=\"hljs-params\">(String[] args)<\/span> <span class=\"hljs-keyword\">throws<\/span> InterruptedException {\r\n        <span class=\"hljs-comment\">\/\/ \u521b\u5efaSparkConf\u5bf9\u8c61<\/span>\r\n        <span class=\"hljs-type\">SparkConf<\/span> <span class=\"hljs-variable\">sparkConf<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">SparkConf<\/span>().setAppName(<span class=\"hljs-string\">\"KafkaStreamingExample\"<\/span>).setMaster(<span class=\"hljs-string\">\"local[*]\"<\/span>);\r\n\r\n        <span class=\"hljs-comment\">\/\/ \u521b\u5efaJavaStreamingContext\u5bf9\u8c61<\/span>\r\n        <span class=\"hljs-type\">JavaStreamingContext<\/span> <span class=\"hljs-variable\">streamingContext<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">JavaStreamingContext<\/span>(sparkConf, Durations.seconds(<span class=\"hljs-number\">1<\/span>));\r\n\r\n        <span class=\"hljs-comment\">\/\/ \u8bbe\u7f6eKafka\u53c2\u6570<\/span>\r\n        Map&lt;String, Object&gt; kafkaParams = <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">HashMap<\/span>&lt;&gt;();\r\n        kafkaParams.put(<span class=\"hljs-string\">\"bootstrap.servers\"<\/span>, <span class=\"hljs-string\">\"localhost:9092\"<\/span>);\r\n        kafkaParams.put(<span class=\"hljs-string\">\"key.deserializer\"<\/span>, StringDeserializer.class);\r\n        kafkaParams.put(<span class=\"hljs-string\">\"value.deserializer\"<\/span>, StringDeserializer.class);\r\n        kafkaParams.put(<span class=\"hljs-string\">\"group.id\"<\/span>, <span class=\"hljs-string\">\"test-group\"<\/span>);\r\n\r\n        <span class=\"hljs-comment\">\/\/ \u521b\u5efaKafka\u4e3b\u9898\u5217\u8868<\/span>\r\n        Collection&lt;String&gt; topics = Arrays.asList(<span class=\"hljs-string\">\"topic1\"<\/span>, <span class=\"hljs-string\">\"topic2\"<\/span>);\r\n\r\n        <span class=\"hljs-comment\">\/\/ \u521b\u5efaKafka\u8f93\u5165\u6d41<\/span>\r\n        JavaInputDStream&lt;ConsumerRecord&lt;String, String&gt;&gt; kafkaStream = KafkaUtils.createDirectStream(\r\n                streamingContext,\r\n                LocationStrategies.PreferConsistent(),\r\n                ConsumerStrategies.&lt;String, String&gt;Subscribe(topics, kafkaParams)\r\n        );\r\n\r\n        <span class=\"hljs-comment\">\/\/ \u5904\u7406Kafka\u6570\u636e<\/span>\r\n        kafkaStream.foreachRDD(rdd -&gt; {\r\n            <span class=\"hljs-comment\">\/\/ \u5728\u8fd9\u91cc\u5bf9\u6bcf\u4e2aRDD\u8fdb\u884c\u5904\u7406<\/span>\r\n            rdd.foreach(record -&gt; {\r\n                System.out.println(<span class=\"hljs-string\">\"Key: \"<\/span> + record.key() + <span class=\"hljs-string\">\", Value: \"<\/span> + record.value());\r\n            });\r\n        });\r\n\r\n        <span class=\"hljs-comment\">\/\/ \u542f\u52a8\u6d41\u5904\u7406\u7a0b\u5e8f<\/span>\r\n        streamingContext.start();\r\n\r\n        <span class=\"hljs-comment\">\/\/ \u7b49\u5f85\u6d41\u5904\u7406\u7a0b\u5e8f\u7ec8\u6b62<\/span>\r\n        streamingContext.awaitTermination();\r\n    }\r\n}\r\n<\/code><\/pre>\n<p>\u4e0a\u8a18\u306e\u4f8b\u3067\u306f\u3001\u307e\u305aSparkConf\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3068JavaStreamingContext\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3057\u307e\u3057\u305f\u3002 \u6b21\u306b\u3001Kafka\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u8a2d\u5b9a\u3057\u307e\u3057\u305f\u3002\u3053\u308c\u306b\u306f\u3001Kafka\u30b5\u30fc\u30d0\u30fc\u306e\u30a2\u30c9\u30ec\u30b9\u3001\u30ad\u30fc\u3068\u5024\u306e\u9006\u30b7\u30ea\u30a2\u30eb\u5316\u30af\u30e9\u30b9\u3001\u304a\u3088\u3073\u30b3\u30f3\u30b7\u30e5\u30fc\u30de\u30fc\u30b0\u30eb\u30fc\u30d7ID\u304c\u542b\u307e\u308c\u307e\u3059\u3002 \u6b21\u306b\u3001Kafka\u5165\u529b\u30b9\u30c8\u30ea\u30fc\u30e0\u3092\u4f5c\u6210\u3057\u3001\u8cfc\u8aad\u3059\u308b\u30c8\u30d4\u30c3\u30af\u3068Kafka\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u6307\u5b9a\u3057\u307e\u3057\u305f\u3002 \u6700\u5f8c\u306b\u3001foreachRDD\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u3001\u5404RDD\u3092\u51e6\u7406\u3057\u3001\u5404\u30ec\u30b3\u30fc\u30c9\u306e\u30ad\u30fc\u3068\u5024\u3092\u53d6\u5f97\u3057\u307e\u3057\u305f\u3002<\/p>\n<p>\u4e0a\u8a18\u306e\u4f8b\u3067\u306f\u3001createDirectStream\u30e1\u30bd\u30c3\u30c9\u306fKafka 0.10\u30d0\u30fc\u30b8\u30e7\u30f3\u304a\u3088\u3073\u305d\u308c\u4ee5\u964d\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u306b\u9069\u7528\u3055\u308c\u307e\u3059\u3002\u53e4\u3044\u30d0\u30fc\u30b8\u30e7\u30f3\u306eKafka\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u5225\u306e\u30aa\u30fc\u30d0\u30fc\u30ed\u30fc\u30c9\u30d0\u30fc\u30b8\u30e7\u30f3\u306ecreateDirectStream\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u307e\u305f\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u4ed6\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u3084\u51e6\u7406\u30ed\u30b8\u30c3\u30af\u3092\u8abf\u6574\u3059\u308b\u3053\u3068\u3082\u53ef\u80fd\u3067\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u30b9\u30d1\u30fc\u30af\u3067\u306e\u30ab\u30d5\u30ab\u30c7\u30fc\u30bf\u306e\u8aad\u307f\u8fbc\u307f\u306b\u306f\u3001\u30b9\u30d1\u30fc\u30af\u306e\u516c\u5f0fKafka\u7d71\u5408\u30e9\u30a4\u30d6\u30e9\u30ea\u3067\u3042\u308b\u30b9\u30d1\u30fc\u30af\u30b9\u30c8\u30ea\u30fc\u30df\u30f3\u30b0\u30ab\u30d5\u30ab\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002 \u6700\u521d\u306b\u3001Spark\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306bSpark Streaming Kafka\u306e\u4f9d\u5b58 [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-26488","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>spark\u306f\u3069\u306e\u3088\u3046\u306b\u3057\u3066kafka\u304b\u3089\u30c7\u30fc\u30bf\u3092\u8aad\u307f\u8fbc\u3080\u304b\uff1f - 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\" 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