{"id":46664,"date":"2023-12-01T07:16:31","date_gmt":"2023-09-23T14:10:38","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/46664-2\/"},"modified":"2024-05-04T11:38:23","modified_gmt":"2024-05-04T03:38:23","slug":"46664-2","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/46664-2\/","title":{"rendered":""},"content":{"rendered":"<h2>\u306f\u3058\u3081\u306b<\/h2>\n<p>GxP \u306e\u6e05\u7530\u3067\u3059\u3002<\/p>\n<p>\u30a4\u30d9\u30f3\u30c8\u99c6\u52d5\u578b\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3 \u3092\u5b9f\u73fe\u3059\u308b\u305f\u3081\u306e\u6280\u8853\u306e1\u3064\u3067\u3042\u308b\u3001<br \/>\nApach Kafka (\u4ee5\u964d Kafka \u3068\u8a18\u8f09) \u3092\u52d5\u304b\u3057\u3066\u5b66\u3093\u3067\u307f\u307e\u3059\u3002<\/p>\n<p>\u7d20\u632f\u308a\u3092\u3057\u3088\u3046\u3068\u601d\u3063\u305f\u52d5\u6a5f\u306f\u3001@yusuke_arclamp \u3055\u3093\u306e\u300e\u30de\u30a4\u30af\u30ed\u30b5\u30fc\u30d3\u30b9\u306e\u6b21\u306b\u6765\u308b\u304b\u3082\u3057\u308c\u306a\u3044\u8a00\u8449\u306b\u3064\u3044\u3066\u300f\u3084\u3001<br \/>\n\u793e\u5185\u30a4\u30d9\u30f3\u30c8 \u300eTechTalk\u300c\u3053\u306e20\u5e74\u306e Agile, DevOps, Microservices \u306e\u6d41\u308c\u306b\u3064\u3044\u3066\u300d\u300f \u3067 Kafka \u3092\u8033\u306b\u3057\u3066\u6c17\u306b\u306a\u3063\u3066\u3044\u305f\u304b\u3089\u3067\u3059\u3002<\/p>\n<p>Microservice \u306b\u304a\u3051\u308b\u30b7\u30b9\u30c6\u30e0\u9593\u9023\u643a\u306e\u65b9\u6cd5\u3068\u3057\u3066\u3001\u30a4\u30d9\u30f3\u30c8\u99c6\u52d5\u578b\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306b\u306f\u4ee5\u4e0b\u306e\u7279\u5fb4\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u540c\u671f\u7684\u306aAPI\u306e\u9023\u643a\u3067\u306a\u304f\u975e\u540c\u671f\u306e\u9023\u643a<\/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\">\u30c7\u30fc\u30bf\u3092\u5171\u6709\u3059\u308b\u306e\u3067\u306f\u306a\u304f\u30a4\u30d9\u30f3\u30c8\u3092\u914d\u4fe1\u3059\u308b<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u30a4\u30d9\u30f3\u30c8\u306e\u767a\u884c\u5143\u306f\u8ab0\u304c\u53d7\u3051\u53d6\u308b\u304b\u3092\u6c17\u306b\u3057\u306a\u304f\u3066\u826f\u3044(=\u758e\u7d50\u5408)<\/ul>\n<p>\u3053\u308c\u307e\u3067\u306e\u958b\u767a\u7d4c\u9a13\u3067\u89e6\u308c\u305f\u3053\u3068\u306e\u306a\u3044\u3082\u306e\u3060\u3063\u305f\u306e\u3067\u3001\u4e00\u5ea6\u52d5\u304f\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u4f5c\u3063\u3066\u6050\u6016\u5fc3\u3092\u306a\u304f\u3057\u3066\u304a\u3053\u3046\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n<hr \/>\n<h2>\u5bfe\u8c61\u8aad\u8005<\/h2>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30a4\u30d9\u30f3\u30c8\u99c6\u52d5\u578b\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306b\u8208\u5473\u306e\u3042\u308b\u4eba<\/ul>\n<\/li>\n<\/ul>\n<p>Kafka \u3092 \u52d5\u304b\u3057\u3066\u6982\u5ff5\u306e\u4e00\u90e8\u3092\u7406\u89e3\u3057\u305f\u3044\u4eba<\/p>\n<p>Docker Compose \u3067\u30b3\u30f3\u30c6\u30ca\u3092\u8d77\u52d5\u3057\u3066 CLI \u3067\u52d5\u304b\u3057\u3066\u5b66\u3076<\/p>\n<p>Spring for Apache Kafka \u3067\u7c21\u5358\u306a producer, consumer \u3092\u5b9f\u88c5\u3059\u308b<\/p>\n<p>\u30a4\u30d9\u30f3\u30c8\u3092\u8907\u6570\u306e\u30b7\u30b9\u30c6\u30e0\u304c\u53d7\u3051\u53d6\u3063\u3066\u3001\u305d\u308c\u305e\u308c\u306e\u89e3\u91c8\u3067\u51e6\u7406\u3059\u308b \u5b9f\u88c5\u306e\u30a4\u30e1\u30fc\u30b8\u3092\u63b4\u307f\u305f\u3044\u4eba<\/p>\n<p>\u4e0a\u8a18\u306e\u3044\u305a\u308c\u304b\u306b\u8a72\u5f53\u3059\u308b\u5834\u5408\u3001\u697d\u3057\u3093\u3067\u3044\u305f\u3060\u3051\u308b\u304b\u3082\u77e5\u308c\u307e\u305b\u3093\u3002<\/p>\n<hr \/>\n<h2>\u8a18\u8f09\u3057\u306a\u3044\u3053\u3068<\/h2>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u8131 Zookeeper \u3092\u652f\u3048\u308b\u6280\u8853\u3067\u3042\u308b Apache Kafka Raft (KRaft) \u306b\u3064\u3044\u3066<\/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 \u306e\u30af\u30e9\u30a6\u30c9\u74b0\u5883\u3067\u306e\u30c7\u30d7\u30ed\u30a4(Amazon Managed Streaming for Apache Kafka \u306a\u3069)\u306b\u3064\u3044\u3066<\/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\">\u30a4\u30d9\u30f3\u30c8\u306e\u914d\u4fe1\u306e\u4fdd\u8a3c(At Least One \u3084 Exactly Once) \u306b\u3064\u3044\u3066<\/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\">RabbitMQ \u306a\u3069\u306e message brokers \u3068\u306e\u6bd4\u8f03\u306b\u3064\u3044\u3066<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">Amazon Simple Queue Service \u3084 Cloud Pub\/Sub \u306a\u3069\u306e\u30d1\u30d6\u30ea\u30c3\u30af\u30af\u30e9\u30a6\u30c9\u3067\u63d0\u4f9b\u3055\u308c\u3066\u3044\u308b\u30b5\u30fc\u30d3\u30b9\u3068\u306e\u4f7f\u3044\u5206\u3051\u306b\u3064\u3044\u3066<\/ul>\n<p>\u4e0a\u8a18\u306e\u8a71\u984c\u306b\u3064\u3044\u3066\u306f\u3001\u5b66\u7fd2\u4e2d\u3067\u77e5\u8b58\u3092\u6709\u3057\u3066\u3044\u306a\u3044\u305f\u3081\u8a18\u8f09\u3057\u306a\u3044\u3067\u3059\u3002(\u3044\u305a\u308c\u3082\u6c17\u306b\u306a\u308b)<\/p>\n<hr \/>\n<h2>Kafka\u3068\u306f<\/h2>\n<p>\u3042\u305f\u308a\u306e\u8aac\u660e\u3067\u65e5\u672c\u8a9e\u3067\u3056\u3063\u3068\u8aad\u3081\u308b\u3082\u306e\u3068\u3057\u3066\u306f\u3001\u4ee5\u4e0b\u306e\u8a18\u4e8b\u304c\u5927\u5909\u53c2\u8003\u306b\u306a\u308a\u307e\u3057\u305f\u3002<br \/>\n\u3053\u306e\u8a18\u4e8b\u3067\u306f\u6982\u5ff5\u306e1\u3064\u305a\u3064\u306e\u7d39\u4ecb\u306f\u3057\u3066\u3044\u306a\u3044\u306e\u3067\u3001\u53c2\u7167\u3044\u305f\u3060\u3051\u307e\u3059\u3068\u30a4\u30e1\u30fc\u30b8\u3092\u63b4\u307f\u3084\u3059\u3044\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n<p>\u500b\u4eba\u7684\u306b\u306f\u3001\u52d5\u304b\u3057\u3066\u5b66\u3076\u3053\u3068\u3067\u3053\u306e\u8fba\u308a\u306e\u8a18\u8f09\u3092\u5b9f\u611f\u3092\u6301\u3063\u3066\u7406\u89e3\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3057\u305f\u3002<\/p>\n<blockquote><p>Apache Kafka\uff08\u4ee5\u964d\u3001Kafka\uff09\u306f\u30b9\u30b1\u30fc\u30e9\u30d3\u30ea\u30c6\u30a3\u306b\u512a\u308c\u305f\u5206\u6563\u30e1\u30c3\u30bb\u30fc\u30b8\u30ad\u30e5\u30fc\u3067\u3059\u3002<br \/>\nKafka\u306f\u51e6\u7406\u6027\u80fd\u3092\u91cd\u8996\u3057\u305f\u30e1\u30c3\u30bb\u30fc\u30b8\u30ad\u30e5\u30fc\u3067\u3042\u308a\u3001\u8907\u6570\u53f0\u306e\u30de\u30b7\u30f3\u3067\u30af\u30e9\u30b9\u30bf\u3092\u69cb\u6210\u3057\u3066\u5206\u6563\u51e6\u7406\u3092\u884c\u3046\u3053\u3068\u3067\u3001\u9ad8\u3044\u30b9\u30eb\u30fc\u30d7\u30c3\u30c8\u3092\u767a\u63ee\u3057\u307e\u3059\u3002\u5f8c\u304b\u3089\u30af\u30e9\u30b9\u30bf\u306b\u30de\u30b7\u30f3\u3092\u8ffd\u52a0\u3059\u308b\u3053\u3068\u3067\u3001\u51e6\u7406\u6027\u80fd\u3068\u30c7\u30fc\u30bf\u4fdd\u6301\u5bb9\u91cf\u3092\u30b9\u30b1\u30fc\u30eb\u30a2\u30a6\u30c8\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002\u307e\u305f\u3001Kafka\u306f\u30af\u30e9\u30b9\u30bf\u5185\u3067\u30c7\u30fc\u30bf\u3092\u8907\u88fd\u3059\u308b\u305f\u3081\u3001\u4e00\u90e8\u306e\u30de\u30b7\u30f3\u306b\u969c\u5bb3\u304c\u767a\u751f\u3057\u3066\u3082\u30c7\u30fc\u30bf\u3092\u5931\u3046\u3053\u3068\u306a\u304f\u51e6\u7406\u3092\u7d99\u7d9a\u3067\u304d\u307e\u3059\u3002<\/p><\/blockquote>\n<p>\u203b\u30a4\u30e1\u30fc\u30b8\u3092\u63b4\u3093\u3060\u4e0a\u3067\u3001Confluent \u306e\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3084 Kafaka \u306e\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8 \u3092\u78ba\u8a8d\u3057\u307e\u3057\u305f<\/p>\n<hr \/>\n<h2>Docker Compose \u3067\u30b3\u30f3\u30c6\u30ca\u3092\u8d77\u52d5\u3057\u3066 CLI \u3067\u52d5\u304b\u3057\u3066\u5b66\u3076<\/h2>\n<p>\u307e\u305a\u306f\u4f4e\u30ec\u30a4\u30e4\u30fc\u304b\u3089\u5b66\u3093\u3067\u3044\u304d\u307e\u3059\u3002<br \/>\n\u767b\u5834\u4eba\u7269\u306f\u4ee5\u4e0b\u306e\u56f3\u306e\u3082\u306e\u3067\u3059\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d664d37434c4406d09d70\/25-0.jpeg\" alt=\"kafka-advent-calendar-cli-archtecture.jpg\" \/><\/div>\n<p>GitHub \u306b\u30b5\u30f3\u30d7\u30eb\u3092\u7528\u610f(KiyotaTakeshi\/kafka-playground) \u3057\u307e\u3057\u305f\u306e\u3067\u624b\u5143\u3067\u52d5\u304b\u3057\u3066\u78ba\u8a8d\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u3055\u304f\u3063\u3068 broker 3\u53f0\u3067\u30af\u30e9\u30b9\u30bf\u30fc\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002<br \/>\n\u203b\u4eca\u56de\u306f Zookeeper \u304c\u5fc5\u8981\u306a image(bitnami\/kafka) \u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059<\/p>\n<pre class=\"post-pre\"><code><span class=\"nv\">$ <\/span>git clone https:\/\/github.com\/KiyotaTakeshi\/kafka-playground.git\r\n\r\n<span class=\"nv\">$ <\/span><span class=\"nb\">cd  <\/span>kafka-playground\r\n\r\n<span class=\"nv\">$ <\/span>docker compose up <span class=\"nt\">-d<\/span>\r\n\r\n<span class=\"nv\">$ <\/span>docker compose ps\r\nNAME                           COMMAND                  SERVICE             STATUS              PORTS\r\nkafka-playground-kafka1-1      <span class=\"s2\">\"\/opt\/bitnami\/script\u2026\"<\/span>   kafka1              running             0.0.0.0:49760-&gt;9092\/tcp\r\nkafka-playground-kafka2-1      <span class=\"s2\">\"\/opt\/bitnami\/script\u2026\"<\/span>   kafka2              running             0.0.0.0:49761-&gt;9092\/tcp\r\nkafka-playground-kafka3-1      <span class=\"s2\">\"\/opt\/bitnami\/script\u2026\"<\/span>   kafka3              running             0.0.0.0:49762-&gt;9092\/tcp\r\nkafka-playground-zookeeper-1   <span class=\"s2\">\"\/opt\/bitnami\/script\u2026\"<\/span>   zookeeper           running             0.0.0.0:2181-&gt;2181\/tcp\r\n<\/code><\/pre>\n<p>\u4efb\u610f\u306e broker \u30b3\u30f3\u30c6\u30ca\u306b\u5165\u308a\u3001topic \u3092\u4f5c\u6210\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"c\"># \u3069\u306e broker \u306b exec \u3059\u308b\u304b\u306f\u4efb\u610f(\u4eca\u56de\u306f kafka1)<\/span>\r\n<span class=\"nv\">$ <\/span>docker compose <span class=\"nb\">exec <\/span>kafka1 bash\r\n\r\n<span class=\"c\"># \u307e\u305a\u306f replica \u306f1\u3067\u3064\u304f\u308b<\/span>\r\n<span class=\"c\"># partitions \u306f4\u3067\u3064\u304f\u308b<\/span>\r\n<span class=\"nv\">$ <\/span>\/opt\/bitnami\/kafka\/bin\/kafka-topics.sh <span class=\"nt\">--create<\/span> <span class=\"nt\">--topic<\/span> test-topic <span class=\"nt\">--bootstrap-server<\/span> localhost:9092 <span class=\"nt\">--replication-factor<\/span> 1 <span class=\"nt\">--partitions<\/span> 4\r\n<\/code><\/pre>\n<p>\u4f5c\u6210\u3057\u305f\u3082\u306e\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<br \/>\n\u51fa\u529b\u304b\u3089\u4ee5\u4e0b\u306e\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">broker \u304c3\u53f0\u306b\u5bfe\u3057\u3066\u3001 partition \u30924\u3064\u306b\u8a2d\u5b9a\u3057\u305f\u305f\u3081\u30011002(\u6570\u5b57\u306f\u5b9f\u884c\u306b\u3088\u3063\u3066\u7570\u306a\u308a\u307e\u3059) \u306e broker \u304c2\u3064\u306e partiton \u306e Leader \u306b\u306a\u3063\u3066\u3044\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\">replica \u306f1\u306b\u3057\u3066\u3044\u308b\u306e\u3067\u3001\u5404 partition \u306f1\u53f0\u306e broker \u306e\u307f\u304c\u4fdd\u6301\u3057\u3066\u3044\u308b<\/ul>\n<\/li>\n<\/ul>\n<p>Isr(In-Sync Replica) \u304c Leader \u3068\u540c\u3058 broker \u306e\u307f<\/p>\n<pre class=\"post-pre\"><code><span class=\"nv\">$ <\/span>\/opt\/bitnami\/kafka\/bin\/kafka-topics.sh <span class=\"nt\">--describe<\/span> <span class=\"nt\">--bootstrap-server<\/span> localhost:9092 <span class=\"nt\">--topic<\/span> test-topic\r\n\r\nTopic: test-topic   TopicId: sqlIpd0oSEC3d7PJC3c_Dg PartitionCount: 4   ReplicationFactor: 1    Configs: segment.bytes<span class=\"o\">=<\/span>1073741824\r\n    Topic: test-topic   Partition: 0    Leader: 1002    Replicas: 1002  Isr: 1002\r\n    Topic: test-topic   Partition: 1    Leader: 1001    Replicas: 1001  Isr: 1001\r\n    Topic: test-topic   Partition: 2    Leader: 1003    Replicas: 1003  Isr: 1003\r\n    Topic: test-topic   Partition: 3    Leader: 1002    Replicas: 1002  Isr: 1002\r\n<\/code><\/pre>\n<p>\u3067\u306f\u3001producer \u3068 consumer \u3067\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u3084\u308a\u53d6\u308a\u304c\u3067\u304d\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<br \/>\n\u203b\u95a2\u4fc2\u3059\u308b\u6982\u5ff5\u3060\u3051\u8a18\u8f09\u3057\u305f\u56f3\u3067\u3059<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d664d37434c4406d09d70\/35-0.jpeg\" alt=\"kafka-advent-calendar-1producer-1consumer.jpg\" \/><\/div>\n<p>\u30b7\u30a7\u30eb\u30922\u3064\u8d77\u52d5\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"c\"># \u30b7\u30a7\u30eb1<\/span>\r\n<span class=\"c\"># consumer \u306e\u8d77\u52d5<\/span>\r\n<span class=\"nv\">$ <\/span>\/opt\/bitnami\/kafka\/bin\/kafka-console-consumer.sh <span class=\"nt\">--bootstrap-server<\/span> localhost:9092 <span class=\"nt\">--topic<\/span> test-topic\r\n<\/code><\/pre>\n<pre class=\"post-pre\"><code><span class=\"c\"># \u30b7\u30a7\u30eb2<\/span>\r\n<span class=\"c\"># \u3069\u306e Broker \u306b exec \u3059\u308b\u304b\u306f\u4efb\u610f<\/span>\r\n<span class=\"nv\">$ <\/span>docker compose <span class=\"nb\">exec <\/span>kafka1 bash\r\n\r\n<span class=\"c\"># producer \u3092\u8d77\u52d5\u3057\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u9001\u308b<\/span>\r\n<span class=\"nv\">$ <\/span>\/opt\/bitnami\/kafka\/bin\/kafka-console-producer.sh <span class=\"nt\">--broker-list<\/span> localhost:9092 <span class=\"nt\">--topic<\/span> test-topic\r\n<span class=\"o\">&gt;<\/span>hello\r\n<span class=\"o\">&gt;<\/span>world\r\n<\/code><\/pre>\n<p>consumer \u5074\u3067\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u53d7\u4fe1\u3067\u304d\u307e\u3057\u305f\u3002<\/p>\n<pre class=\"post-pre\"><code># \u30b7\u30a7\u30eb1\r\n$ \/opt\/bitnami\/kafka\/bin\/kafka-console-consumer.sh --bootstrap-server localhost:9092 --topic test-topic\r\n\r\nhello\r\nworld\r\n<\/code><\/pre>\n<p>\u3082\u30461\u3064\u30b7\u30a7\u30eb\u3092\u7acb\u3061\u4e0a\u3052\u3066\u3001 consumer \u3092\u5897\u3084\u3057\u3066\u307f\u307e\u3059\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d664d37434c4406d09d70\/42-0.jpeg\" alt=\"kafka-advent-calendar-1producer-2consumer.jpg\" \/><\/div>\n<pre class=\"post-pre\"><code><span class=\"c\"># \u30b7\u30a7\u30eb3<\/span>\r\n<span class=\"nv\">$ <\/span>docker compose <span class=\"nb\">exec <\/span>kafka1 bash\r\n\r\n<span class=\"nv\">$ <\/span>\/opt\/bitnami\/kafka\/bin\/kafka-console-consumer.sh <span class=\"nt\">--bootstrap-server<\/span> localhost:9092 <span class=\"nt\">--topic<\/span> test-topic\r\n<\/code><\/pre>\n<p>producer \u304b\u3089\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u9001\u308b\u3068\u3001<\/p>\n<pre class=\"post-pre\"><code><span class=\"c\"># \u30b7\u30a7\u30eb2<\/span>\r\n<span class=\"nv\">$ <\/span>\/opt\/bitnami\/kafka\/bin\/kafka-console-producer.sh <span class=\"nt\">--broker-list<\/span> localhost:9092 <span class=\"nt\">--topic<\/span> test-topic\r\n<span class=\"o\">&gt;<\/span>goodbye\r\n<\/code><\/pre>\n<p>2\u3064\u306e consumer \u304c\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u53d7\u4fe1\u3067\u304d\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"c\"># \u30b7\u30a7\u30eb1<\/span>\r\n<span class=\"nv\">$ <\/span>\/opt\/bitnami\/kafka\/bin\/kafka-console-consumer.sh <span class=\"nt\">--bootstrap-server<\/span> localhost:9092 <span class=\"nt\">--topic<\/span> test-topic\r\n\r\ngoodbye\r\n<\/code><\/pre>\n<pre class=\"post-pre\"><code><span class=\"c\"># \u30b7\u30a7\u30eb3<\/span>\r\n<span class=\"nv\">$ <\/span>\/opt\/bitnami\/kafka\/bin\/kafka-console-consumer.sh <span class=\"nt\">--bootstrap-server<\/span> localhost:9092 <span class=\"nt\">--topic<\/span> test-topic\r\n\r\ngoodbye\r\n<\/code><\/pre>\n<p>\u3053\u306e\u3053\u3068\u304b\u3089\u3001 \u540c\u3058 topic \u304b\u30892\u3064\u306e consumer \u304c\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u53d7\u4fe1\u3067\u304d\u308b \u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<br \/>\n\u30a4\u30d9\u30f3\u30c8\u99c6\u52d5\u578b\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306b\u304a\u3051\u308b\u3001\u300c\u30a4\u30d9\u30f3\u30c8\u3092\u8907\u6570\u306e\u30b7\u30b9\u30c6\u30e0\u304c\u53d7\u3051\u53d6\u308b\u300d\u304c\u5b9f\u73fe \u3067\u304d\u3066\u3044\u307e\u3059\u306d(\u307e\u3060 CLI \u4e0a\u3067\u3059\u304c)\u3002<\/p>\n<p>2\u3064\u306e consumer \u304c\u5225\u306e subscriber \u3068\u3057\u3066\u632f\u308b\u821e\u3063\u305f\u306e\u306f\u306a\u305c\u3067\u3057\u3087\u3046\u304b\uff1f<br \/>\n\u7406\u7531\u306f\u3001\u5225\u306e consumer group \u3060\u304b\u3089\u3067\u3059\u3002<\/p>\n<p>producer \u3092\u505c\u6b62\u3057\u3066\u3001\u78ba\u8a8d\u3057\u3066\u307f\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"c\"># \u30b7\u30a7\u30eb2<\/span>\r\n<span class=\"nv\">$ <\/span>\/opt\/bitnami\/kafka\/bin\/kafka-consumer-groups.sh <span class=\"nt\">--bootstrap-server<\/span> localhost:9092 <span class=\"nt\">--list<\/span>\r\nconsole-consumer-32834\r\nconsole-consumer-40587\r\n<\/code><\/pre>\n<p>\u3067\u306f\u30012\u3064\u306e consumer \u3092\u540c\u3058 consumer group \u3067\u7acb\u3061\u4e0a\u3052\u307e\u3059\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d664d37434c4406d09d70\/54-0.jpeg\" alt=\"kafka-advent-calendar-1producer-1consumer-group.jpg\" \/><\/div>\n<pre class=\"post-pre\"><code><span class=\"c\"># \u30b7\u30a7\u30eb1<\/span>\r\n<span class=\"c\"># console-consumer \u3068\u3044\u3046 consumer group \u3067\u8d77\u52d5<\/span>\r\n<span class=\"nv\">$ <\/span>\/opt\/bitnami\/kafka\/bin\/kafka-console-consumer.sh <span class=\"nt\">--bootstrap-server<\/span> localhost:9092 <span class=\"se\">\\<\/span>\r\n<span class=\"nt\">--topic<\/span> test-topic <span class=\"nt\">--group<\/span> console-consumer\r\n<\/code><\/pre>\n<pre class=\"post-pre\"><code><span class=\"c\"># \u30b7\u30a7\u30eb3<\/span>\r\n<span class=\"nv\">$ <\/span>\/opt\/bitnami\/kafka\/bin\/kafka-console-consumer.sh <span class=\"nt\">--bootstrap-server<\/span> localhost:9092 <span class=\"se\">\\<\/span>\r\n<span class=\"nt\">--topic<\/span> test-topic <span class=\"nt\">--group<\/span> console-consumer\r\n<\/code><\/pre>\n<p>\u3053\u306e\u72b6\u614b\u3067\u3001 producer \u304b\u3089\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u9001\u308b\u3068<\/p>\n<pre class=\"post-pre\"><code><span class=\"c\"># \u30b7\u30a7\u30eb2<\/span>\r\n<span class=\"nv\">$ <\/span>\/opt\/bitnami\/kafka\/bin\/kafka-console-producer.sh <span class=\"nt\">--broker-list<\/span> localhost:9092 <span class=\"nt\">--topic<\/span> test-topic\r\n<span class=\"o\">&gt;<\/span>hello\r\n<span class=\"o\">&gt;<\/span>world\r\n<span class=\"o\">&gt;<\/span>goodbye\r\n<\/code><\/pre>\n<p>2\u5206\u306e1\u3067\u305d\u308c\u305e\u308c\u306e consumer \u304c\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u53d7\u4fe1\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"c\"># \u30b7\u30a7\u30eb1<\/span>\r\n<span class=\"nv\">$ <\/span>\/opt\/bitnami\/kafka\/bin\/kafka-console-consumer.sh <span class=\"nt\">--bootstrap-server<\/span> localhost:9092 <span class=\"se\">\\<\/span>\r\n<span class=\"o\">&gt;<\/span> <span class=\"nt\">--topic<\/span> test-topic <span class=\"nt\">--group<\/span> console-consumer\r\n\r\ngoodbye\r\n<\/code><\/pre>\n<pre class=\"post-pre\"><code><span class=\"c\"># \u30b7\u30a7\u30eb3<\/span>\r\n<span class=\"nv\">$ <\/span>\/opt\/bitnami\/kafka\/bin\/kafka-console-consumer.sh <span class=\"nt\">--bootstrap-server<\/span> localhost:9092 <span class=\"se\">\\<\/span>\r\n<span class=\"o\">&gt;<\/span> <span class=\"nt\">--topic<\/span> test-topic <span class=\"nt\">--group<\/span> console-consumer\r\n\r\nhello\r\nworld\r\n<\/code><\/pre>\n<p>\u3064\u307e\u308a\u3001 \u3068\u3042\u308b topic \u306b\u5bfe\u3057\u3066\u540c\u3058\u51e6\u7406\u3092\u3059\u308b consumer \u306e\u30b9\u30b1\u30fc\u30eb\u30a2\u30a6\u30c8 \u304c\u5b9f\u73fe\u3067\u304d\u307e\u3057\u305f(\u4eca\u56de\u306f\u305f\u3060\u30b3\u30f3\u30bd\u30fc\u30eb\u306b\u51fa\u529b\u3055\u308c\u308b\u3060\u3051\u3067\u3059\u304c)\u3002<\/p>\n<p>\u3053\u3053\u307e\u3067\u3067<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u5225\u306e consumer group \u3067\u8d77\u52d5\u3057\u3066\u3001\u540c\u3058 topic \u3092\u8907\u6570\u306e consumer \u3067\u53d7\u3051\u53d6\u308b<\/ul>\n<\/li>\n<\/ul>\n<p>\u30a4\u30d9\u30f3\u30c8\u306e\u30b7\u30b9\u30c6\u30e0\u3054\u3068\u306e\u89e3\u91c8<\/p>\n<p>\u540c\u3058 consumer group \u3067\u8d77\u52d5\u3057\u3066\u3001topic \u3092\u8907\u6570\u306e\u540c\u3058\u51e6\u7406\u3092\u3059\u308b consumer \u9593\u3067\u53d7\u3051\u53d6\u308b<\/p>\n<p>\u540c\u3058\u89e3\u91c8\u3092\u3059\u308b\u30b7\u30b9\u30c6\u30e0\u306e\u30b9\u30b1\u30fc\u30eb\u30a2\u30a6\u30c8<\/p>\n<p>\u304c\u78ba\u8a8d\u3067\u304d\u307e\u3057\u305f\u3002<\/p>\n<hr \/>\n<p>\u3067\u306f\u3001\u6b21\u306f broker \u5074\u306e\u30b9\u30b1\u30fc\u30eb\u30a2\u30a6\u30c8\u306b\u3064\u3044\u3066\u898b\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<p>\u4ee5\u4e0b\u306e\u56f3\u306e\u3088\u3046\u306b\u3001\u8907\u6570\u306e replica \u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u3067 Topic \u306e partition \u3092\u8907\u6570\u306e broker \u306b\u6301\u3064\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d664d37434c4406d09d70\/69-0.jpeg\" alt=\"kafka-advent-calendar-broker-partition-archtecture.jpg\" \/><\/div>\n<p>\u307e\u305a\u3001\u30b3\u30f3\u30c6\u30ca\u3092\u505c\u6b62\u3057\u30db\u30b9\u30c8\u5074\u306b\u30de\u30a6\u30f3\u30c8\u3057\u3066\u3044\u308b\u30c7\u30fc\u30bf\u3082\u5439\u304d\u98db\u3070\u3057\u307e\u3059\u3002<br \/>\n(\u5148\u7a0b\u4f5c\u6210\u3057\u305f topic \u3084 consumer group \u7b49\u304c\u306a\u304f\u306a\u308a\u307e\u3059)<\/p>\n<pre class=\"post-pre\"><code><span class=\"nv\">$ <\/span>docker compose down <span class=\"o\">&amp;&amp;<\/span> <span class=\"nb\">rm<\/span> <span class=\"nt\">-rf<\/span> .docker\r\n<\/code><\/pre>\n<p>\u30b3\u30f3\u30c6\u30ca\u3092\u518d\u8d77\u52d5\u3057\u3001\u30b3\u30f3\u30c6\u30ca\u306b\u5165\u308a\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nv\">$ <\/span>docker compose up <span class=\"nt\">-d<\/span> <span class=\"o\">&amp;&amp;<\/span> docker compose ps\r\n\r\n<span class=\"nv\">$ <\/span>docker compose <span class=\"nb\">exec <\/span>kafka1 bash\r\n<\/code><\/pre>\n<p>\u4eca\u5ea6\u306f\u3001 replica \u6570\u30923(broker \u3068\u540c\u3058\u53f0\u6570)\u3067\u6307\u5b9a\u3057\u3001\u4f5c\u6210\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"c\"># \u4f5c\u6210<\/span>\r\n<span class=\"nv\">$ <\/span>\/opt\/bitnami\/kafka\/bin\/kafka-topics.sh <span class=\"nt\">--create<\/span> <span class=\"nt\">--topic<\/span> test-topic-replicated <span class=\"se\">\\<\/span>\r\n<span class=\"o\">&gt;<\/span> <span class=\"nt\">--bootstrap-server<\/span> localhost:9092 <span class=\"nt\">--replication-factor<\/span> 3 <span class=\"nt\">--partitions<\/span> 4\r\n<\/code><\/pre>\n<p>\u4f5c\u6210\u3057\u305f\u3082\u306e\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<br \/>\n\u51fa\u529b\u304b\u3089\u4ee5\u4e0b\u306e\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">broker \u304c3\u53f0\u306b\u5bfe\u3057\u3066\u3001 partition \u30924\u3064\u306b\u8a2d\u5b9a\u3057\u305f\u305f\u3081\u30011002(\u6570\u5b57\u306f\u5b9f\u884c\u306b\u3088\u3063\u3066\u7570\u306a\u308a\u307e\u3059) \u306e broker \u304c2\u3064\u306e partiton \u306e Leader \u306b\u306a\u3063\u3066\u3044\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\">replica \u30923\u306b\u3057\u3066\u3044\u308b\u306e\u3067\u3001\u5404 partition \u306f3\u53f0\u306e broker \u304c\u4fdd\u6301\u3057\u3066\u3044\u308b<\/ul>\n<\/li>\n<\/ul>\n<p>Isr(In-Sync Replica) \u304c3\u53f0<\/p>\n<pre class=\"post-pre\"><code><span class=\"nv\">$ <\/span>\/opt\/bitnami\/kafka\/bin\/kafka-topics.sh <span class=\"nt\">--bootstrap-server<\/span> localhost:9092 <span class=\"nt\">--describe<\/span> <span class=\"nt\">--topic<\/span> test-topic-replicated\r\n\r\nTopic: test-topic-replicated    TopicId: w7ITwLFVTZi3m2AKNAUYIg PartitionCount: 4   ReplicationFactor: 3    Configs: segment.bytes<span class=\"o\">=<\/span>1073741824\r\n    Topic: test-topic-replicated    Partition: 0    Leader: 1002    Replicas: 1002,1001,1003    Isr: 1002,1001,1003\r\n    Topic: test-topic-replicated    Partition: 1    Leader: 1001    Replicas: 1001,1003,1002    Isr: 1001,1003,1002\r\n    Topic: test-topic-replicated    Partition: 2    Leader: 1003    Replicas: 1003,1002,1001    Isr: 1003,1002,1001\r\n    Topic: test-topic-replicated    Partition: 3    Leader: 1002    Replicas: 1002,1003,1001    Isr: 1002,1003,1001\r\n<\/code><\/pre>\n<p>\u3067\u306f\u3001 broker \u3092\u505c\u6b62\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"c\"># \u4efb\u610f\u306e\u30b3\u30f3\u30c6\u30ca\u3092\u505c\u6b62<\/span>\r\n<span class=\"nv\">$ <\/span>docker compose stop kafka2\r\n<\/code><\/pre>\n<p>topic \u3092\u78ba\u8a8d\u3057\u3066\u307f\u308b\u3068(\u30b3\u30f3\u30c6\u30ca\u5185\u90e8\u306b\u5165\u3063\u3066\u30b3\u30de\u30f3\u30c9\u5b9f\u884c\u3067\u3082\u3044\u3044\u3067\u3059)\u3001\u51fa\u529b\u304b\u3089\u4ee5\u4e0b\u306e\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u505c\u6b62\u3057\u305f broker \u304c Leader \u3067\u306a\u304f\u306a\u3063\u3066\u3044\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\">\u505c\u6b62\u3057\u305f broker \u304c Isr(In-Sync Replica) \u306b\u542b\u307e\u308c\u306a\u304f\u306a\u3063\u3066\u3044\u308b<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u52d5\u4f5c\u3057\u3066\u3044\u308b broker \u3067 partition \u306e Leader \u3092\u5206\u3051\u5408\u3063\u3066\u3044\u308b<\/ul>\n<pre class=\"post-pre\"><code><span class=\"nv\">$ <\/span>docker compose <span class=\"nb\">exec<\/span> <span class=\"nt\">-T<\/span> kafka1 \/bin\/bash <span class=\"o\">&lt;&lt;<\/span><span class=\"no\">EOF<\/span><span class=\"sh\">\r\n\/opt\/bitnami\/kafka\/bin\/kafka-topics.sh --describe --bootstrap-server localhost:9092 --topic test-topic-replicated\r\n<\/span><span class=\"no\">EOF\r\n\r\n<\/span>Topic: test-topic-replicated    TopicId: w7ITwLFVTZi3m2AKNAUYIg PartitionCount: 4   ReplicationFactor: 3    Configs: segment.bytes<span class=\"o\">=<\/span>1073741824\r\n    Topic: test-topic-replicated    Partition: 0    Leader: 1001    Replicas: 1002,1001,1003    Isr: 1001,1003\r\n    Topic: test-topic-replicated    Partition: 1    Leader: 1001    Replicas: 1001,1003,1002    Isr: 1001,1003\r\n    Topic: test-topic-replicated    Partition: 2    Leader: 1003    Replicas: 1003,1002,1001    Isr: 1003,1001\r\n    Topic: test-topic-replicated    Partition: 3    Leader: 1003    Replicas: 1002,1003,1001    Isr: 1003,1001\r\n<\/code><\/pre>\n<p>\u3067\u306f\u3001\u6b62\u3081\u3066\u3044\u305f broker \u3092\u8d77\u52d5\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nv\">$ <\/span>docker compose start kafka2\r\n<\/code><\/pre>\n<p>\u518d\u5ea6 topic \u3092\u78ba\u8a8d\u3057\u3066\u307f\u308b\u3068\u4ee5\u4e0b\u306e\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3057\u305f\u3002<\/p>\n<p>Isr(In-Sync Replica) \u306b\u518d\u5ea6\u8d77\u52d5\u3057\u305f broker \u304c\u542b\u307e\u308c\u3066\u3044\u308b<br \/>\n\u518d\u5ea6\u8d77\u52d5\u3057\u305f broker \u306f partition \u306e Leader \u306b\u306f\u9078\u51fa\u3055\u308c\u3066\u3044\u306a\u3044<\/p>\n<pre class=\"post-pre\"><code><span class=\"nv\">$ <\/span>docker compose <span class=\"nb\">exec<\/span> <span class=\"nt\">-T<\/span> kafka1 \/bin\/bash <span class=\"o\">&lt;&lt;<\/span><span class=\"no\">EOF<\/span><span class=\"sh\">\r\n\/opt\/bitnami\/kafka\/bin\/kafka-topics.sh --describe --bootstrap-server localhost:9092 --topic test-topic-replicated\r\n<\/span><span class=\"no\">EOF\r\n\r\n<\/span>Topic: test-topic-replicated    TopicId: w7ITwLFVTZi3m2AKNAUYIg PartitionCount: 4   ReplicationFactor: 3    Configs: segment.bytes<span class=\"o\">=<\/span>1073741824\r\n    Topic: test-topic-replicated    Partition: 0    Leader: 1001    Replicas: 1002,1001,1003    Isr: 1001,1003,1002\r\n    Topic: test-topic-replicated    Partition: 1    Leader: 1001    Replicas: 1001,1003,1002    Isr: 1001,1003,1002\r\n    Topic: test-topic-replicated    Partition: 2    Leader: 1003    Replicas: 1003,1002,1001    Isr: 1003,1001,1002\r\n    Topic: test-topic-replicated    Partition: 3    Leader: 1003    Replicas: 1002,1003,1001    Isr: 1003,1001,1002\r\n<\/code><\/pre>\n<p>\u203b\u3061\u306a\u307f\u306b\u3001\u3053\u306e\u72b6\u614b\u3067\u5225\u306e broker (\u4eca\u56de\u3060\u3068 kafka3)\u3092\u505c\u6b62\u3059\u308b\u3068\u3001<br \/>\n\u5148\u7a0b\u8d77\u52d5\u3057\u305f broker \u304c Leader \u306b\u542b\u307e\u308c\u308b\u6319\u52d5\u306b\u306a\u308a\u307e\u3057\u305f<\/p>\n<p>\u3053\u308c\u3089\u306e\u691c\u8a3c\u3067\u3001 broker \u306e\u53f0\u6570\u3092\u5897\u3084\u3057 replica \u306b\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u3067\u3001<br \/>\nproducer, consumer \u3068\u3084\u308a\u3068\u308a\u3092\u3059\u308b\u57fa\u76e4\u3068\u3057\u3066\u306e broker \u306e\u53ef\u7528\u6027\u3092\u9ad8\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3068\u308f\u304b\u308a\u307e\u3057\u305f\u3002<\/p>\n<hr \/>\n<p>\u6700\u5f8c\u306b broker \u304c\u5b9f\u4f53\u3068\u3057\u3066\u3069\u306e\u3088\u3046\u306b topic \u3092\u4fdd\u5b58\u3057\u3066\u3044\u308b\u306e\u304b\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n<p>\u30db\u30b9\u30c8\u5074\u306b\u30de\u30a6\u30f3\u30c8\u3057\u3066\u3044\u308b\u30c7\u30fc\u30bf\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002topic \u306e partition \u3054\u3068\u306b\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u304c\u5207\u3089\u308c\u3066\u3044\u308b\u3088\u3046\u3067\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nv\">$ <\/span><span class=\"nb\">ls<\/span> .docker\/kafka1\/data\/test-topic-replicated-?\r\n.docker\/kafka1\/data\/test-topic-replicated-0:\r\n00000000000000000000.index  00000000000000000000.log    00000000000000000000.timeindex  leader-epoch-checkpoint     partition.metadata\r\n\r\n.docker\/kafka1\/data\/test-topic-replicated-1:\r\n00000000000000000000.index  00000000000000000000.log    00000000000000000000.timeindex  leader-epoch-checkpoint     partition.metadata\r\n\r\n.docker\/kafka1\/data\/test-topic-replicated-2:\r\n00000000000000000000.index  00000000000000000000.log    00000000000000000000.timeindex  leader-epoch-checkpoint     partition.metadata\r\n\r\n.docker\/kafka1\/data\/test-topic-replicated-3:\r\n00000000000000000000.index  00000000000000000000.log    00000000000000000000.timeindex  leader-epoch-checkpoint     partition.metadata\r\n\r\n<span class=\"nv\">$ <\/span><span class=\"nb\">ls<\/span> <span class=\"nt\">-ld<\/span> .docker\/kafka1\/data\/test-topic-replicated-<span class=\"k\">*<\/span>\r\ndrwxr-xr-x  7 t.kiyota  AD<span class=\"se\">\\D<\/span>omain Users  224 Dec 15 16:03 .docker\/kafka1\/data\/test-topic-replicated-0\r\ndrwxr-xr-x  7 t.kiyota  AD<span class=\"se\">\\D<\/span>omain Users  224 Dec 15 16:03 .docker\/kafka1\/data\/test-topic-replicated-1\r\ndrwxr-xr-x  7 t.kiyota  AD<span class=\"se\">\\D<\/span>omain Users  224 Dec 15 15:33 .docker\/kafka1\/data\/test-topic-replicated-2\r\ndrwxr-xr-x  7 t.kiyota  AD<span class=\"se\">\\D<\/span>omain Users  224 Dec 15 15:33 .docker\/kafka1\/data\/test-topic-replicated-3\r\n<\/code><\/pre>\n<p>replica \u30923\u3067\u6307\u5b9a\u3057\u305f\u305f\u3081\u3001\u305d\u308c\u305e\u308c\u306e broker \u306b\u540c\u69d8\u306e\u30c7\u30fc\u30bf\u304c\u5b58\u5728\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nv\">$ <\/span><span class=\"nb\">ls<\/span> <span class=\"nt\">-ld<\/span> .docker\/kafka2\/data\/test-topic-replicated-?\r\ndrwxr-xr-x  7 t.kiyota  AD<span class=\"se\">\\D<\/span>omain Users  224 Dec 15 16:12 .docker\/kafka2\/data\/test-topic-replicated-0\r\ndrwxr-xr-x  7 t.kiyota  AD<span class=\"se\">\\D<\/span>omain Users  224 Dec 15 15:33 .docker\/kafka2\/data\/test-topic-replicated-1\r\ndrwxr-xr-x  7 t.kiyota  AD<span class=\"se\">\\D<\/span>omain Users  224 Dec 15 15:33 .docker\/kafka2\/data\/test-topic-replicated-2\r\ndrwxr-xr-x  7 t.kiyota  AD<span class=\"se\">\\D<\/span>omain Users  224 Dec 15 16:12 .docker\/kafka2\/data\/test-topic-replicated-3\r\n\r\n<span class=\"nv\">$ <\/span><span class=\"nb\">ls<\/span> <span class=\"nt\">-ld<\/span> .docker\/kafka3\/data\/test-topic-replicated-?\r\ndrwxr-xr-x  7 t.kiyota  AD<span class=\"se\">\\D<\/span>omain Users  224 Dec 15 15:33 .docker\/kafka3\/data\/test-topic-replicated-0\r\ndrwxr-xr-x  7 t.kiyota  AD<span class=\"se\">\\D<\/span>omain Users  224 Dec 15 15:33 .docker\/kafka3\/data\/test-topic-replicated-1\r\ndrwxr-xr-x  7 t.kiyota  AD<span class=\"se\">\\D<\/span>omain Users  224 Dec 15 16:03 .docker\/kafka3\/data\/test-topic-replicated-2\r\ndrwxr-xr-x  7 t.kiyota  AD<span class=\"se\">\\D<\/span>omain Users  224 Dec 15 16:03 .docker\/kafka3\/data\/test-topic-replicated-3\r\n<\/code><\/pre>\n<p>\u4ee5\u4e0a\u3067 CLI \u3067\u306e\u691c\u8a3c\u306f\u7d42\u308f\u308a\u307e\u3059\u3002<br \/>\n\u30b3\u30f3\u30c6\u30ca\u8d77\u52d5\u3057\u3066 CLI \u3067\u52d5\u4f5c\u691c\u8a3c\u3059\u308b\u3053\u3068\u3067 Kafka \u306e\u4e3b\u8981\u306a\u6982\u5ff5\u306b\u3064\u3044\u3066\u30a4\u30e1\u30fc\u30b8\u304c\u81a8\u3089\u3093\u3060\u306e\u3067\u306f\u306a\u3044\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n<hr \/>\n<h2>Spring for Apache Kafka \u3067\u7c21\u5358\u306a producer, consumer \u3092\u5b9f\u88c5\u3059\u308b<\/h2>\n<p>\u6b21\u306f Kafka \u3068\u3084\u308a\u3068\u308a\u3092\u3059\u308b\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u958b\u767a\u3057\u3001\u30a4\u30d9\u30f3\u30c8\u99c6\u52d5\u578b\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306e\u7406\u89e3\u3092\u6df1\u3081\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<p>\u6700\u7d42\u7684\u306b\u52d5\u4f5c\u3059\u308b\u3082\u306e\u306f\u3001<br \/>\nGitHub \u306e\u30b5\u30f3\u30d7\u30eb(KiyotaTakeshi\/kafka-spring-sample)\u306e Gif \u3092\u898b\u3066\u3044\u305f\u3060\u304f\u3068\u30a4\u30e1\u30fc\u30b8\u304c\u3057\u3084\u3059\u3044\u3068\u601d\u3044\u307e\u3059\u3002<br \/>\nQiita \u306e\u5bb9\u91cf\u5236\u9650\u3092\u8d85\u3048\u3066\u3044\u308b\u306e\u304b Gif \u304c\u8cbc\u308c\u306a\u304b\u3063\u305f&#8230;<\/p>\n<p>\u56f3\u306b\u3059\u308b\u3068\u4ee5\u4e0b\u306e\u3082\u306e\u3067\u3059\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d664d37434c4406d09d70\/103-0.jpeg\" alt=\"kafka-advent-calendar-spring-sample-archtecture.jpg\" \/><\/div>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">order producer(Spring Boot) \u304cWeb\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u53d7\u3051\u4ed8\u3051\u3066\u3001 topic(order-events) \u306b\u30a4\u30d9\u30f3\u30c8\u3092\u767a\u884c<\/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\">order notification(Spring Boot) \u304c\u30a4\u30d9\u30f3\u30c8\u3092\u53d7\u3051\u53d6\u3063\u3066\u30e1\u30fc\u30eb\u3092\u9001\u4fe1<\/ul>\n<\/li>\n<\/ul>\n<p>\u30b3\u30f3\u30c6\u30ca\u8d77\u52d5\u3057\u3066\u3044\u308b mailhog \u306b\u3066\u53d7\u4fe1\u3057\u305f\u30e1\u30fc\u30eb\u3092\u78ba\u8a8d\u3067\u304d\u308b<\/p>\n<p>order rdb(Sring Boot) \u304c\u30a4\u30d9\u30f3\u30c8\u3092\u53d7\u3051\u53d6\u3063\u3066 MySQL \u306b\u4fdd\u5b58<\/p>\n<p>\u3068\u3044\u3046\u69cb\u6210\u3067\u3059\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">producer \u5074\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306f\u30a4\u30d9\u30f3\u30c8\u3092\u767a\u884c\u3059\u308b\u3068\u3053\u308d\u307e\u3067\u3057\u304b\u6c17\u306b\u3057\u306a\u3044<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">consumer \u306f\u30a4\u30d9\u30f3\u30c8\u3092\u53d7\u3051\u53d6\u3063\u3066\u5404\u3005\u306e\u51e6\u7406\u3092\u884c\u3046<\/ul>\n<p>\u3068\u3044\u3046\u30a4\u30d9\u30f3\u30c8\u99c6\u52d5\u578b\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u3092\u30b7\u30f3\u30d7\u30eb\u3067\u3059\u304c\u5b9f\u73fe\u3057\u307e\u3057\u305f\u3002<br \/>\n(\u4ed6\u306b\u3082\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u307e\u307e NoSQL \u306b\u4fdd\u5b58\u3059\u308b consumer \u304c\u3042\u3063\u3066\u3082\u3044\u3044\u304b\u3082)<\/p>\n<hr \/>\n<p>\u3067\u306f order producer \u306e\u5b9f\u88c5\u3092\u898b\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<p>topic \u306e\u4f5c\u6210\u306f Configuration \u30af\u30e9\u30b9\u306b\u3088\u308a\u884c\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nd\">@Configuration<\/span>\r\n<span class=\"kd\">public<\/span> <span class=\"kd\">class<\/span> <span class=\"nc\">AutoCreateConfig<\/span> <span class=\"o\">{<\/span>\r\n\r\n    <span class=\"c1\">\/\/ if you create manual<\/span>\r\n    <span class=\"c1\">\/\/ $ .\/bin\/kafka-topics.sh --create --topic order-events --bootstrap-server localhost:9092 --replication-factor 3 --partitions 3<\/span>\r\n    <span class=\"nd\">@Bean<\/span>\r\n    <span class=\"kd\">public<\/span> <span class=\"nc\">NewTopic<\/span> <span class=\"nf\">orderEvents<\/span><span class=\"o\">(){<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"nc\">TopicBuilder<\/span><span class=\"o\">.<\/span><span class=\"na\">name<\/span><span class=\"o\">(<\/span><span class=\"s\">\"order-events\"<\/span><span class=\"o\">)<\/span>\r\n                <span class=\"o\">.<\/span><span class=\"na\">partitions<\/span><span class=\"o\">(<\/span><span class=\"mi\">3<\/span><span class=\"o\">)<\/span>\r\n                <span class=\"o\">.<\/span><span class=\"na\">replicas<\/span><span class=\"o\">(<\/span><span class=\"mi\">3<\/span><span class=\"o\">)<\/span>\r\n                <span class=\"o\">.<\/span><span class=\"na\">build<\/span><span class=\"o\">();<\/span>\r\n    <span class=\"o\">}<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<p>controller \u304c\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u53d7\u3051\u4ed8\u3051\u3066\u3001<\/p>\n<pre class=\"post-pre\"><code><span class=\"nd\">@RestController<\/span>\r\n<span class=\"nd\">@RequestMapping<\/span><span class=\"o\">(<\/span><span class=\"s\">\"\/order-events\"<\/span><span class=\"o\">)<\/span>\r\n<span class=\"nd\">@Slf4j<\/span>\r\n<span class=\"nd\">@AllArgsConstructor<\/span>\r\n<span class=\"kd\">public<\/span> <span class=\"kd\">class<\/span> <span class=\"nc\">OrderEventsController<\/span> <span class=\"o\">{<\/span>\r\n\r\n    <span class=\"kd\">private<\/span> <span class=\"nc\">OrderEventProducer<\/span> <span class=\"n\">orderEventProducer<\/span><span class=\"o\">;<\/span>\r\n\r\n    <span class=\"nd\">@PostMapping<\/span>\r\n    <span class=\"kd\">public<\/span> <span class=\"nc\">ResponseEntity<\/span><span class=\"o\">&lt;<\/span><span class=\"nc\">OrderEvent<\/span><span class=\"o\">&gt;<\/span> <span class=\"nf\">postOrderEvent<\/span><span class=\"o\">(<\/span><span class=\"nd\">@RequestBody<\/span> <span class=\"nd\">@Valid<\/span> <span class=\"nc\">OrderEvent<\/span> <span class=\"n\">orderEvent<\/span><span class=\"o\">)<\/span>\r\n            <span class=\"kd\">throws<\/span> <span class=\"nc\">JsonProcessingException<\/span> <span class=\"o\">{<\/span>\r\n\r\n        <span class=\"n\">log<\/span><span class=\"o\">.<\/span><span class=\"na\">info<\/span><span class=\"o\">(<\/span><span class=\"s\">\"invoke kafka producer\"<\/span><span class=\"o\">);<\/span>\r\n        <span class=\"n\">orderEvent<\/span><span class=\"o\">.<\/span><span class=\"na\">setOrderEventType<\/span><span class=\"o\">(<\/span><span class=\"nc\">OrderEventType<\/span><span class=\"o\">.<\/span><span class=\"na\">NEW<\/span><span class=\"o\">);<\/span>\r\n        <span class=\"n\">orderEventProducer<\/span><span class=\"o\">.<\/span><span class=\"na\">sendOrderEvent<\/span><span class=\"o\">(<\/span><span class=\"n\">orderEvent<\/span><span class=\"o\">);<\/span>\r\n\r\n        <span class=\"k\">return<\/span> <span class=\"nc\">ResponseEntity<\/span><span class=\"o\">.<\/span><span class=\"na\">status<\/span><span class=\"o\">(<\/span><span class=\"nc\">HttpStatus<\/span><span class=\"o\">.<\/span><span class=\"na\">CREATED<\/span><span class=\"o\">).<\/span><span class=\"na\">body<\/span><span class=\"o\">(<\/span><span class=\"n\">orderEvent<\/span><span class=\"o\">);<\/span>\r\n    <span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<p>kafkaTemplate \u3092\u4f7f\u7528\u3057\u3066 topic \u306b\u5bfe\u3057\u3066\u975e\u540c\u671f\u3067 message \u3092\u9001\u4fe1\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code>    <span class=\"kd\">public<\/span> <span class=\"nc\">ListenableFuture<\/span><span class=\"o\">&lt;<\/span><span class=\"nc\">SendResult<\/span><span class=\"o\">&lt;<\/span><span class=\"nc\">Integer<\/span><span class=\"o\">,<\/span> <span class=\"nc\">String<\/span><span class=\"o\">&gt;&gt;<\/span> <span class=\"nf\">sendOrderEvent<\/span><span class=\"o\">(<\/span><span class=\"nc\">OrderEvent<\/span> <span class=\"n\">orderEvent<\/span><span class=\"o\">)<\/span> <span class=\"kd\">throws<\/span> <span class=\"nc\">JsonProcessingException<\/span> <span class=\"o\">{<\/span>\r\n        <span class=\"nc\">Integer<\/span> <span class=\"n\">key<\/span> <span class=\"o\">=<\/span> <span class=\"n\">orderEvent<\/span><span class=\"o\">.<\/span><span class=\"na\">getOrderEventId<\/span><span class=\"o\">();<\/span>\r\n        <span class=\"nc\">String<\/span> <span class=\"n\">value<\/span> <span class=\"o\">=<\/span> <span class=\"n\">objectMapper<\/span><span class=\"o\">.<\/span><span class=\"na\">writeValueAsString<\/span><span class=\"o\">(<\/span><span class=\"n\">orderEvent<\/span><span class=\"o\">);<\/span>\r\n        <span class=\"nc\">ListenableFuture<\/span><span class=\"o\">&lt;<\/span><span class=\"nc\">SendResult<\/span><span class=\"o\">&lt;<\/span><span class=\"nc\">Integer<\/span><span class=\"o\">,<\/span> <span class=\"nc\">String<\/span><span class=\"o\">&gt;&gt;<\/span> <span class=\"n\">listenableFuture<\/span> <span class=\"o\">=<\/span> <span class=\"n\">kafkaTemplate<\/span><span class=\"o\">.<\/span><span class=\"na\">send<\/span><span class=\"o\">(<\/span><span class=\"no\">TOPIC<\/span><span class=\"o\">,<\/span> <span class=\"n\">key<\/span><span class=\"o\">,<\/span> <span class=\"n\">value<\/span><span class=\"o\">);<\/span>\r\n\r\n        <span class=\"n\">listenableFuture<\/span><span class=\"o\">.<\/span><span class=\"na\">addCallback<\/span><span class=\"o\">(<\/span><span class=\"k\">new<\/span> <span class=\"nc\">ListenableFutureCallback<\/span><span class=\"o\">&lt;&gt;()<\/span> <span class=\"o\">{<\/span>\r\n            <span class=\"nd\">@Override<\/span>\r\n            <span class=\"kd\">public<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">onFailure<\/span><span class=\"o\">(<\/span><span class=\"nc\">Throwable<\/span> <span class=\"n\">ex<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n                <span class=\"n\">handleFailure<\/span><span class=\"o\">(<\/span><span class=\"n\">key<\/span><span class=\"o\">,<\/span> <span class=\"n\">value<\/span><span class=\"o\">,<\/span> <span class=\"n\">ex<\/span><span class=\"o\">);<\/span>\r\n            <span class=\"o\">}<\/span>\r\n\r\n            <span class=\"nd\">@Override<\/span>\r\n            <span class=\"kd\">public<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">onSuccess<\/span><span class=\"o\">(<\/span><span class=\"nc\">SendResult<\/span><span class=\"o\">&lt;<\/span><span class=\"nc\">Integer<\/span><span class=\"o\">,<\/span> <span class=\"nc\">String<\/span><span class=\"o\">&gt;<\/span> <span class=\"n\">result<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n                <span class=\"n\">handleSuccess<\/span><span class=\"o\">(<\/span><span class=\"n\">key<\/span><span class=\"o\">,<\/span> <span class=\"n\">value<\/span><span class=\"o\">,<\/span> <span class=\"n\">result<\/span><span class=\"o\">);<\/span>\r\n            <span class=\"o\">}<\/span>\r\n        <span class=\"o\">});<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"n\">listenableFuture<\/span><span class=\"o\">;<\/span>\r\n    <span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<p>\u30a4\u30d9\u30f3\u30c8\u3092\u914d\u308b\u3060\u3051\u306a\u306e\u3067\u30b7\u30f3\u30d7\u30eb\u306a\u5b9f\u88c5\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>application.yaml \u306f\u63a5\u7d9a\u5148\u306e Kafka Cluster \u306e\u60c5\u5831\u3084\u30b7\u30ea\u30a2\u30e9\u30a4\u30ba\u3001\u30c7\u30b7\u30ea\u30a2\u30e9\u30a4\u30ba\u306e\u8a2d\u5b9a\u3092\u8a18\u8f09\u3057\u307e\u3059\u3002<br \/>\nadmin \u306e\u8a2d\u5b9a\u306f\u4e0a\u8a18\u306e topic \u306e\u751f\u6210\u3067\u5fc5\u8981\u306a\u3082\u306e\u3067\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"na\">spring<\/span><span class=\"pi\">:<\/span>\r\n  <span class=\"na\">kafka<\/span><span class=\"pi\">:<\/span>\r\n    <span class=\"na\">template<\/span><span class=\"pi\">:<\/span>\r\n      <span class=\"na\">default-topic<\/span><span class=\"pi\">:<\/span> <span class=\"s2\">\"<\/span><span class=\"s\">order-events\"<\/span>\r\n    <span class=\"na\">producer<\/span><span class=\"pi\">:<\/span>\r\n      <span class=\"na\">bootstrap-servers<\/span><span class=\"pi\">:<\/span>\r\n        <span class=\"pi\">-<\/span> <span class=\"s\">localhost:9092<\/span>\r\n        <span class=\"pi\">-<\/span> <span class=\"s\">localhost:9093<\/span>\r\n        <span class=\"pi\">-<\/span> <span class=\"s\">localhost:9094<\/span>\r\n      <span class=\"na\">key-serializer<\/span><span class=\"pi\">:<\/span> <span class=\"s\">org.apache.kafka.common.serialization.IntegerSerializer<\/span>\r\n      <span class=\"na\">value-serializer<\/span><span class=\"pi\">:<\/span> <span class=\"s\">org.apache.kafka.common.serialization.StringSerializer<\/span>\r\n    <span class=\"na\">admin<\/span><span class=\"pi\">:<\/span>\r\n      <span class=\"na\">properties<\/span><span class=\"pi\">:<\/span>\r\n        <span class=\"s\">bootstrap.servers<\/span><span class=\"pi\">:<\/span> <span class=\"s\">localhost:9092,localhost:9093,localhost:9094<\/span>\r\n<\/code><\/pre>\n<hr \/>\n<p>\u6b21\u306b order notification \u306e\u5b9f\u88c5\u3092\u898b\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<p>\u3053\u3061\u3089\u306e application.yaml \u306f consumer \u3068\u3057\u3066\u63a5\u7d9a\u5148\u306e Kafka Cluster \u306e\u60c5\u5831\u3092\u8a18\u8f09\u3057\u3066\u3044\u307e\u3059\u3002<br \/>\n\u307e\u305f\u3001\u30e1\u30fc\u30eb\u306e\u9001\u4fe1\u5148\u306e\u60c5\u5831\u3082\u8a18\u8f09\u3057\u3066\u3044\u307e\u3059\u3002<br \/>\n(\u4eca\u56de\u306f\u30b3\u30f3\u30c6\u30ca\u8d77\u52d5\u3057\u305f mailhog \u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u304c\u3001 mailtrap \u306e\u3088\u3046\u306a\u30af\u30e9\u30a6\u30c9\u30b5\u30fc\u30d3\u30b9\u3092\u4f7f\u3063\u3066\u3082\u3044\u3044\u304b\u3082\u3067\u3059)<\/p>\n<p>group-id: order-notification-events-group \u3067\u6307\u5b9a\u3057\u3066\u308b\u306e\u306f consumer group \u3067\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"na\">spring<\/span><span class=\"pi\">:<\/span>\r\n  <span class=\"na\">kafka<\/span><span class=\"pi\">:<\/span>\r\n    <span class=\"na\">consumer<\/span><span class=\"pi\">:<\/span>\r\n      <span class=\"na\">bootstrap-servers<\/span><span class=\"pi\">:<\/span>\r\n        <span class=\"pi\">-<\/span> <span class=\"s\">localhost:9092<\/span>\r\n        <span class=\"pi\">-<\/span> <span class=\"s\">localhost:9093<\/span>\r\n        <span class=\"pi\">-<\/span> <span class=\"s\">localhost:9094<\/span>\r\n      <span class=\"na\">key-deserializer<\/span><span class=\"pi\">:<\/span> <span class=\"s\">org.apache.kafka.common.serialization.IntegerDeserializer<\/span>\r\n      <span class=\"na\">value-deserializer<\/span><span class=\"pi\">:<\/span> <span class=\"s\">org.apache.kafka.common.serialization.StringDeserializer<\/span>\r\n      <span class=\"na\">group-id<\/span><span class=\"pi\">:<\/span> <span class=\"s\">order-notification-events-group<\/span>\r\n  <span class=\"na\">mail<\/span><span class=\"pi\">:<\/span>\r\n    <span class=\"c1\"># if you use mailtrap instead of mailhog<\/span>\r\n    <span class=\"c1\"># host: smtp.mailtrap.io<\/span>\r\n    <span class=\"na\">host<\/span><span class=\"pi\">:<\/span> <span class=\"s\">localhost<\/span>\r\n    <span class=\"na\">port<\/span><span class=\"pi\">:<\/span> <span class=\"m\">1025<\/span>\r\n    <span class=\"c1\"># username: dummy<\/span>\r\n    <span class=\"c1\"># password: dummy<\/span>\r\n    <span class=\"na\">protocol<\/span><span class=\"pi\">:<\/span> <span class=\"s\">smtp<\/span>\r\n<\/code><\/pre>\n<p>@KafkaListener \u3067 topic \u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u3067\u3001 event \u3092\u53d7\u3051\u53d6\u3063\u3066\u51e6\u7406\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nd\">@Component<\/span>\r\n<span class=\"nd\">@Slf4j<\/span>\r\n<span class=\"nd\">@AllArgsConstructor<\/span>\r\n<span class=\"kd\">public<\/span> <span class=\"kd\">class<\/span> <span class=\"nc\">OrderEventsConsumer<\/span> <span class=\"o\">{<\/span>\r\n\r\n    <span class=\"kd\">private<\/span> <span class=\"kd\">final<\/span> <span class=\"nc\">OrderEventsService<\/span> <span class=\"n\">orderEventsService<\/span><span class=\"o\">;<\/span>\r\n\r\n    <span class=\"nd\">@KafkaListener<\/span><span class=\"o\">(<\/span><span class=\"n\">topics<\/span> <span class=\"o\">=<\/span> <span class=\"o\">{<\/span><span class=\"s\">\"order-events\"<\/span><span class=\"o\">})<\/span>\r\n    <span class=\"kd\">public<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">onMessage<\/span><span class=\"o\">(<\/span><span class=\"nc\">ConsumerRecord<\/span><span class=\"o\">&lt;<\/span><span class=\"nc\">Integer<\/span><span class=\"o\">,<\/span> <span class=\"nc\">String<\/span><span class=\"o\">&gt;<\/span> <span class=\"n\">consumerRecord<\/span><span class=\"o\">)<\/span> <span class=\"kd\">throws<\/span> <span class=\"nc\">JsonProcessingException<\/span> <span class=\"o\">{<\/span>\r\n        <span class=\"n\">log<\/span><span class=\"o\">.<\/span><span class=\"na\">info<\/span><span class=\"o\">(<\/span><span class=\"s\">\"ConsumerRecord: {} \"<\/span><span class=\"o\">,<\/span> <span class=\"n\">consumerRecord<\/span><span class=\"o\">);<\/span>\r\n        <span class=\"n\">orderEventsService<\/span><span class=\"o\">.<\/span><span class=\"na\">processOrderEvent<\/span><span class=\"o\">(<\/span><span class=\"n\">consumerRecord<\/span><span class=\"o\">);<\/span>\r\n    <span class=\"o\">}<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<p>\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30a8\u30f3\u30b8\u30f3\u3067\u3042\u308b Thymeleaf \u3067\u3001<br \/>\nevent \u3068\u3057\u3066\u53d7\u3051\u53d6\u3063\u305f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u672c\u6587\u306b\u542b\u3081\u305f HTML \u5f62\u5f0f\u306e\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code>    <span class=\"kd\">private<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">sendMail<\/span><span class=\"o\">(<\/span><span class=\"nc\">NotificationEmail<\/span> <span class=\"n\">notificationEmail<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n        <span class=\"nc\">MimeMessagePreparator<\/span> <span class=\"n\">messagePreparer<\/span> <span class=\"o\">=<\/span> <span class=\"n\">mimeMessage<\/span> <span class=\"o\">-&gt;<\/span> <span class=\"o\">{<\/span>\r\n            <span class=\"nc\">MimeMessageHelper<\/span> <span class=\"n\">helper<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nc\">MimeMessageHelper<\/span><span class=\"o\">(<\/span><span class=\"n\">mimeMessage<\/span><span class=\"o\">,<\/span> <span class=\"s\">\"UTF-8\"<\/span><span class=\"o\">);<\/span>\r\n            <span class=\"n\">helper<\/span><span class=\"o\">.<\/span><span class=\"na\">setFrom<\/span><span class=\"o\">(<\/span><span class=\"s\">\"kafka-spring-sample@example.com\"<\/span><span class=\"o\">);<\/span>\r\n            <span class=\"n\">helper<\/span><span class=\"o\">.<\/span><span class=\"na\">setTo<\/span><span class=\"o\">(<\/span><span class=\"n\">notificationEmail<\/span><span class=\"o\">.<\/span><span class=\"na\">getRecipient<\/span><span class=\"o\">());<\/span>\r\n            <span class=\"n\">helper<\/span><span class=\"o\">.<\/span><span class=\"na\">setSubject<\/span><span class=\"o\">(<\/span><span class=\"n\">notificationEmail<\/span><span class=\"o\">.<\/span><span class=\"na\">getSubject<\/span><span class=\"o\">());<\/span>\r\n            <span class=\"n\">helper<\/span><span class=\"o\">.<\/span><span class=\"na\">setText<\/span><span class=\"o\">(<\/span><span class=\"n\">build<\/span><span class=\"o\">(<\/span><span class=\"n\">notificationEmail<\/span><span class=\"o\">.<\/span><span class=\"na\">getBody<\/span><span class=\"o\">()),<\/span> <span class=\"kc\">true<\/span><span class=\"o\">);<\/span>\r\n        <span class=\"o\">};<\/span>\r\n        <span class=\"k\">try<\/span> <span class=\"o\">{<\/span>\r\n            <span class=\"n\">mailSender<\/span><span class=\"o\">.<\/span><span class=\"na\">send<\/span><span class=\"o\">(<\/span><span class=\"n\">messagePreparer<\/span><span class=\"o\">);<\/span>\r\n            <span class=\"n\">log<\/span><span class=\"o\">.<\/span><span class=\"na\">info<\/span><span class=\"o\">(<\/span><span class=\"s\">\"Email sent!!\"<\/span><span class=\"o\">);<\/span>\r\n        <span class=\"o\">}<\/span> <span class=\"k\">catch<\/span> <span class=\"o\">(<\/span><span class=\"nc\">MailException<\/span> <span class=\"n\">e<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n            <span class=\"n\">log<\/span><span class=\"o\">.<\/span><span class=\"na\">error<\/span><span class=\"o\">(<\/span><span class=\"s\">\"Exception occurred when sending mail\"<\/span><span class=\"o\">,<\/span> <span class=\"n\">e<\/span><span class=\"o\">);<\/span>\r\n            <span class=\"k\">throw<\/span> <span class=\"k\">new<\/span> <span class=\"nf\">RuntimeException<\/span><span class=\"o\">(<\/span><span class=\"s\">\"Exception occurred when sending mail to \"<\/span> <span class=\"o\">+<\/span> <span class=\"n\">notificationEmail<\/span><span class=\"o\">.<\/span><span class=\"na\">getRecipient<\/span><span class=\"o\">(),<\/span> <span class=\"n\">e<\/span><span class=\"o\">);<\/span>\r\n        <span class=\"o\">}<\/span>\r\n    <span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<hr \/>\n<p>\u6700\u5f8c\u306b order rdb \u306e\u5b9f\u88c5\u3092\u898b\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<p>application.yaml \u306f order notification \u3068\u540c\u3058 Kafka \u306b\u95a2\u3059\u308b\u8a2d\u5b9a\u306b\u52a0\u3048\u3066 DB \u5468\u308a\u306e\u8a2d\u5b9a\u3092\u8a18\u8f09\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>order notification \u3068\u306f\u5225\u306e consumer group \u306e group-id: order-rdb-events-group \u304c\u6307\u5b9a\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u304c\u30dd\u30a4\u30f3\u30c8\u3067\u3059\u3002<\/p>\n<p>CLI \u3067\u78ba\u8a8d\u3057\u305f\u3088\u3046\u306b \u540c\u3058 topic \u304b\u3089 consumer \u304c\u5225\u306e\u51e6\u7406\u3092\u3059\u308b\u305f\u3081(\u540c\u3058\u30a4\u30d9\u30f3\u30c8\u3092\u8907\u6570\u306e\u30b7\u30b9\u30c6\u30e0\u304c\u53d7\u3051\u53d6\u308b\u305f\u3081)\u306b\u3001\u5225\u306eID\u304c\u6307\u5b9a \u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"na\">spring<\/span><span class=\"pi\">:<\/span>\r\n  <span class=\"na\">kafka<\/span><span class=\"pi\">:<\/span>\r\n    <span class=\"na\">consumer<\/span><span class=\"pi\">:<\/span>\r\n      <span class=\"na\">bootstrap-servers<\/span><span class=\"pi\">:<\/span>\r\n        <span class=\"pi\">-<\/span> <span class=\"s\">localhost:9092<\/span>\r\n        <span class=\"pi\">-<\/span> <span class=\"s\">localhost:9093<\/span>\r\n        <span class=\"pi\">-<\/span> <span class=\"s\">localhost:9094<\/span>\r\n      <span class=\"na\">key-deserializer<\/span><span class=\"pi\">:<\/span> <span class=\"s\">org.apache.kafka.common.serialization.IntegerDeserializer<\/span>\r\n      <span class=\"na\">value-deserializer<\/span><span class=\"pi\">:<\/span> <span class=\"s\">org.apache.kafka.common.serialization.StringDeserializer<\/span>\r\n      <span class=\"na\">group-id<\/span><span class=\"pi\">:<\/span> <span class=\"s\">order-rdb-events-group<\/span>\r\n  <span class=\"na\">datasource<\/span><span class=\"pi\">:<\/span>\r\n    <span class=\"na\">driver-class-name<\/span><span class=\"pi\">:<\/span> <span class=\"s\">com.mysql.cj.jdbc.Driver<\/span>\r\n    <span class=\"na\">url<\/span><span class=\"pi\">:<\/span> <span class=\"s\">jdbc:mysql:\/\/localhost:3306\/kafka-spring-sample?createDatabaseIfNotExist=true<\/span>\r\n    <span class=\"na\">username<\/span><span class=\"pi\">:<\/span> <span class=\"s\">root<\/span>\r\n    <span class=\"na\">password<\/span><span class=\"pi\">:<\/span> <span class=\"s\">1qazxsw2<\/span>\r\n  <span class=\"na\">jpa<\/span><span class=\"pi\">:<\/span>\r\n    <span class=\"na\">show-sql<\/span><span class=\"pi\">:<\/span> <span class=\"no\">true<\/span>\r\n    <span class=\"na\">properties<\/span><span class=\"pi\">:<\/span>\r\n      <span class=\"na\">hibernate<\/span><span class=\"pi\">:<\/span>\r\n        <span class=\"na\">dialect<\/span><span class=\"pi\">:<\/span> <span class=\"s\">org.hibernate.dialect.MySQL8Dialect<\/span>\r\n        <span class=\"na\">format_sql<\/span><span class=\"pi\">:<\/span> <span class=\"no\">true<\/span>\r\n    <span class=\"na\">hibernate<\/span><span class=\"pi\">:<\/span>\r\n      <span class=\"na\">ddl-auto<\/span><span class=\"pi\">:<\/span> <span class=\"s\">update<\/span>\r\n<span class=\"c1\"># \u30d1\u30e9\u30e1\u30fc\u30bf\u306e\u5024\u3092\u30ed\u30b0\u306b\u8868\u793a ex.) binding parameter [1] as [INTEGER] - [1]<\/span>\r\n<span class=\"c1\"># 2021-11-21 00:55:11.604 TRACE 11400 --- [ main] o.h.type.descriptor.sql.BasicBinder      : binding parameter [1] as [BIGINT] - [1]<\/span>\r\n<span class=\"s\">logging.level.org.hibernate.type.descriptor.sql.BasicBinder<\/span><span class=\"pi\">:<\/span> <span class=\"s\">trace<\/span>\r\n\r\n<\/code><\/pre>\n<p>topic \u3092\u6307\u5b9a\u3057\u3066\u30a4\u30d9\u30f3\u30c8\u3092\u53d7\u3051\u53d6\u308b\u51e6\u7406\u306f\u540c\u3058\u3067\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nd\">@Component<\/span>\r\n<span class=\"nd\">@Slf4j<\/span>\r\n<span class=\"nd\">@AllArgsConstructor<\/span>\r\n<span class=\"kd\">public<\/span> <span class=\"kd\">class<\/span> <span class=\"nc\">OrderEventsConsumer<\/span> <span class=\"o\">{<\/span>\r\n\r\n    <span class=\"kd\">private<\/span> <span class=\"kd\">final<\/span> <span class=\"nc\">OrderEventsService<\/span> <span class=\"n\">orderEventsService<\/span><span class=\"o\">;<\/span>\r\n\r\n    <span class=\"nd\">@KafkaListener<\/span><span class=\"o\">(<\/span><span class=\"n\">topics<\/span> <span class=\"o\">=<\/span> <span class=\"o\">{<\/span><span class=\"s\">\"order-events\"<\/span><span class=\"o\">})<\/span>\r\n    <span class=\"kd\">public<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">onMessage<\/span><span class=\"o\">(<\/span><span class=\"nc\">ConsumerRecord<\/span><span class=\"o\">&lt;<\/span><span class=\"nc\">Integer<\/span><span class=\"o\">,<\/span> <span class=\"nc\">String<\/span><span class=\"o\">&gt;<\/span> <span class=\"n\">consumerRecord<\/span><span class=\"o\">)<\/span> <span class=\"kd\">throws<\/span> <span class=\"nc\">JsonProcessingException<\/span> <span class=\"o\">{<\/span>\r\n        <span class=\"n\">log<\/span><span class=\"o\">.<\/span><span class=\"na\">info<\/span><span class=\"o\">(<\/span><span class=\"s\">\"ConsumerRecord: {} \"<\/span><span class=\"o\">,<\/span> <span class=\"n\">consumerRecord<\/span><span class=\"o\">);<\/span>\r\n        <span class=\"n\">orderEventsService<\/span><span class=\"o\">.<\/span><span class=\"na\">processOrderEvent<\/span><span class=\"o\">(<\/span><span class=\"n\">consumerRecord<\/span><span class=\"o\">);<\/span>\r\n    <span class=\"o\">}<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<p>\u3042\u3068\u306f\u53d7\u3051\u53d6\u3063\u305f\u30a4\u30d9\u30f3\u30c8\u306e\u30e2\u30c7\u30eb\u3067 MySQL \u306b\u4fdd\u5b58\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code>    <span class=\"kd\">private<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">save<\/span><span class=\"o\">(<\/span><span class=\"nc\">OrderEvent<\/span> <span class=\"n\">orderEvent<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n        <span class=\"n\">orderEvent<\/span><span class=\"o\">.<\/span><span class=\"na\">getOrder<\/span><span class=\"o\">().<\/span><span class=\"na\">setOrderEvent<\/span><span class=\"o\">(<\/span><span class=\"n\">orderEvent<\/span><span class=\"o\">);<\/span>\r\n        <span class=\"n\">orderEventsRepository<\/span><span class=\"o\">.<\/span><span class=\"na\">save<\/span><span class=\"o\">(<\/span><span class=\"n\">orderEvent<\/span><span class=\"o\">);<\/span>\r\n        <span class=\"n\">log<\/span><span class=\"o\">.<\/span><span class=\"na\">info<\/span><span class=\"o\">(<\/span><span class=\"s\">\"Successfully Persisted the Order Event {}\"<\/span><span class=\"o\">,<\/span> <span class=\"n\">orderEvent<\/span><span class=\"o\">);<\/span>\r\n    <span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<hr \/>\n<p>\u3067\u306f\u3001 HTTP \u30ea\u30af\u30a8\u30b9\u30c8\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<br \/>\n\u203b\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9(KiyotaTakeshi\/kafka-spring-sample)\u306b postman \u306e\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u3092\u914d\u7f6e\u3057\u3066\u3044\u307e\u3059<\/p>\n<p>\u3082\u308d\u3082\u308d\u5fc5\u8981\u306a\u30b3\u30f3\u30c6\u30ca\u3092\u8d77\u52d5\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nv\">$ <\/span>docker compose up <span class=\"nt\">-d<\/span>\r\n\r\n<span class=\"nv\">$ <\/span>docker compose ps                                                             \r\n\r\nNAME                COMMAND                  SERVICE             STATUS              PORTS\r\norder-kafka1        <span class=\"s2\">\"\/opt\/bitnami\/script\u2026\"<\/span>   kafka1              running             0.0.0.0:9092-&gt;9092\/tcp\r\norder-kafka2        <span class=\"s2\">\"\/opt\/bitnami\/script\u2026\"<\/span>   kafka2              running             0.0.0.0:9093-&gt;9093\/tcp\r\norder-kafka3        <span class=\"s2\">\"\/opt\/bitnami\/script\u2026\"<\/span>   kafka3              running             0.0.0.0:9094-&gt;9094\/tcp\r\norder-mailhog       <span class=\"s2\">\"MailHog\"<\/span>                mailhog             running             0.0.0.0:1025-&gt;1025\/tcp, 0.0.0.0:8025-&gt;8025\/tcp\r\norder-mysql         <span class=\"s2\">\"docker-entrypoint.s\u2026\"<\/span>   mysql               running             0.0.0.0:3306-&gt;3306\/tcp\r\norder-zookeeper     <span class=\"s2\">\"\/opt\/bitnami\/script\u2026\"<\/span>   zookeeper           running             0.0.0.0:2181-&gt;2181\/tcp\r\n<\/code><\/pre>\n<p>root project \u3067\u30d3\u30eb\u30c9\u3057\u3066 executable jar \u3092\u751f\u6210\u3057\u307e\u3059\u3002<br \/>\nIDE \u3067\u8d77\u52d5\u3057\u3066\u3082\u554f\u984c\u306a\u3044\u3067\u3059\uff01<\/p>\n<pre class=\"post-pre\"><code><span class=\"nv\">$ <\/span><span class=\"nb\">export <\/span><span class=\"nv\">JAVA_HOME<\/span><span class=\"o\">=<\/span><span class=\"sb\">`<\/span>\/usr\/libexec\/java_home <span class=\"nt\">-v<\/span> 11<span class=\"sb\">`<\/span>\r\n\r\n<span class=\"nv\">$ <\/span>java <span class=\"nt\">-version<\/span>                                                                \r\nopenjdk version <span class=\"s2\">\"11.0.11\"<\/span> 2021-04-20 LTS\r\nOpenJDK Runtime Environment Corretto-11.0.11.9.1 <span class=\"o\">(<\/span>build 11.0.11+9-LTS<span class=\"o\">)<\/span>\r\nOpenJDK 64-Bit Server VM Corretto-11.0.11.9.1 <span class=\"o\">(<\/span>build 11.0.11+9-LTS, mixed mode<span class=\"o\">)<\/span>\r\n\r\n<span class=\"nv\">$ <\/span>.\/gradlew clean build\r\n\r\n<span class=\"nv\">$ <\/span><span class=\"nb\">ls<\/span> <span class=\"nt\">-l<\/span> order-notification-consumer\/build\/libs\/order-notification-consumer-0.0.1-SNAPSHOT.jar\r\n\r\n<span class=\"nv\">$ <\/span><span class=\"nb\">ls<\/span> <span class=\"nt\">-l<\/span> order-producer\/build\/libs\/order-producer-0.0.1-SNAPSHOT.jar\r\n\r\n<span class=\"nv\">$ <\/span><span class=\"nb\">ls<\/span> <span class=\"nt\">-l<\/span> order-rdb-consumer\/build\/libs\/order-rdb-consumer-0.0.1-SNAPSHOT.jar\r\n<\/code><\/pre>\n<p>topic \u3092\u4f5c\u6210\u3059\u308b\u305f\u3081\u3001 order producer \u304b\u3089\u8d77\u52d5\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nv\">$ <\/span>java <span class=\"nt\">-jar<\/span> order-producer\/build\/libs\/order-producer-0.0.1-SNAPSHOT.jar\r\n<\/code><\/pre>\n<p>\u305d\u3057\u3066 order notification, order rdb \u3092\u8d77\u52d5\u3059\u308b\u3068\u6e96\u5099\u5b8c\u4e86\u3067\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nv\">$ <\/span>java <span class=\"nt\">-jar<\/span> order-notification-consumer\/build\/libs\/order-notification-consumer-0.0.1-SNAPSHOT.jar\r\n\r\n<span class=\"nv\">$ <\/span>java <span class=\"nt\">-jar<\/span> order-rdb-consumer\/build\/libs\/order-rdb-consumer-0.0.1-SNAPSHOT.jar \r\n<\/code><\/pre>\n<p>HTTP \u30ea\u30af\u30a8\u30b9\u30c8\u3092\u3059\u308b\u3068\u3001<\/p>\n<pre class=\"post-pre\"><code><span class=\"nv\">$ <\/span>curl <span class=\"nt\">--location<\/span> <span class=\"nt\">--request<\/span> POST <span class=\"s1\">'http:\/\/localhost:8080\/order-events'<\/span> <span class=\"se\">\\<\/span>\r\n<span class=\"nt\">--header<\/span> <span class=\"s1\">'Content-Type: application\/json'<\/span> <span class=\"se\">\\<\/span>\r\n<span class=\"nt\">--data-raw<\/span> <span class=\"s1\">'{\r\n    \"orderEventId\": null,\r\n    \"order\": {\r\n        \"id\": 43333,\r\n        \"name\": \"\u30c1\u30e7\u30b3\u30e2\u30ca\u30ab\u30b8\u30e3\u30f3\u30dc\",\r\n        \"price\": 145\r\n    }\r\n}'<\/span>\r\n<\/code><\/pre>\n<p>DB \u306b\u30ec\u30b3\u30fc\u30c9\u304c\u4fdd\u5b58\u3055\u308c\u3001<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">select<\/span> <span class=\"o\">*<\/span> <span class=\"k\">from<\/span> <span class=\"n\">orders<\/span><span class=\"p\">;<\/span>\r\n\r\n<span class=\"cm\">\/*\r\n+-----+----------+-----+--------------+\r\n|id   |name      |price|order_event_id|\r\n+-----+----------+-----+--------------+\r\n|43333|\u30c1\u30e7\u30b3\u30e2\u30ca\u30ab\u30b8\u30e3\u30f3\u30dc|145  |1             |\r\n+-----+----------+-----+--------------+\r\n*\/<\/span>\r\n<\/code><\/pre>\n<p>\u30c1\u30e7\u30b3\u30e2\u30ca\u30ab\u30b8\u30e3\u30f3\u30dc \u306e\u8cfc\u5165\u3092\u53d7\u3051\u4ed8\u3051\u305f\u30e1\u30fc\u30eb\u304c\u5c4a\u304d\u307e\u3057\u305f\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d664d37434c4406d09d70\/153-0.png\" alt=\"kafka-advent-calendar-mailhog.png\" \/><\/div>\n<p>\u30a4\u30d9\u30f3\u30c8\u99c6\u52d5\u578b\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u3067\u8907\u6570\u306e\u30a2\u30d7\u30ea\u304c\u5404\u3005\u306e\u89e3\u91c8\u3067\u30a4\u30d9\u30f3\u30c8\u3092\u51e6\u7406\u3059\u308b\u30a4\u30e1\u30fc\u30b8\u304c\u63b4\u3081\u307e\u3057\u305f\u306d\u3002<\/p>\n<hr \/>\n<p>\u3067\u306f consumer \u3092\u8907\u6570\u8d77\u52d5\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002\u8907\u6570\u306e\u30b7\u30a7\u30eb\u3067 executable jar \u3092\u5b9f\u884c\u3057\u3066\u307f\u307e\u3059\u3002<br \/>\n\u305d\u3046\u3059\u308b\u3068\u8208\u5473\u6df1\u3044\u30ed\u30b0\u304c\u51fa\u529b\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>order-notification-events-group: partitions assigned: [order-events-0] \u304b\u3089\u3001<br \/>\nconsumer \u304c\u3069\u306e partition \u3068\u758e\u901a\u3059\u308b\u304b\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"c\"># \u30b7\u30a7\u30eb1<\/span>\r\n<span class=\"nv\">$ <\/span>java <span class=\"nt\">-jar<\/span> order-notification-consumer\/build\/libs\/order-notification-consumer-0.0.1-SNAPSHOT.jar\r\n\r\n2021-12-15 18:49:59.734  INFO 70648 <span class=\"nt\">---<\/span> <span class=\"o\">[<\/span>ntainer#0-0-C-1] o.s.k.l.KafkaMessageListenerContainer    : order-notification-events-group: partitions assigned: <span class=\"o\">[<\/span>order-events-2]\r\n<\/code><\/pre>\n<pre class=\"post-pre\"><code><span class=\"c\"># \u30b7\u30a7\u30eb2<\/span>\r\n<span class=\"nv\">$ <\/span>java <span class=\"nt\">-jar<\/span> order-notification-consumer\/build\/libs\/order-notification-consumer-0.0.1-SNAPSHOT.jar\r\n\r\n2021-12-15 18:49:59.732  INFO 70918 <span class=\"nt\">---<\/span> <span class=\"o\">[<\/span>ntainer#0-0-C-1] o.s.k.l.KafkaMessageListenerContainer    : order-notification-events-group: partitions assigned: <span class=\"o\">[<\/span>order-events-1]\r\n<\/code><\/pre>\n<pre class=\"post-pre\"><code><span class=\"c\"># \u30b7\u30a7\u30eb3<\/span>\r\n<span class=\"nv\">$ <\/span>java <span class=\"nt\">-jar<\/span> order-notification-consumer\/build\/libs\/order-notification-consumer-0.0.1-SNAPSHOT.jar\r\n\r\n2021-12-15 18:49:59.740  INFO 71159 <span class=\"nt\">---<\/span> <span class=\"o\">[<\/span>ntainer#0-0-C-1] o.s.k.l.KafkaMessageListenerContainer    : order-notification-events-group: partitions assigned: <span class=\"o\">[<\/span>order-events-0]\r\n<\/code><\/pre>\n<p>\u3053\u306e\u72b6\u614b\u3067\u30ea\u30af\u30a8\u30b9\u30c8\u3057\u3066\u307f\u3066\u3082\u3001consumer group \u304c\u540c\u3058 consumer \u3092\u8907\u6570\u8d77\u52d5\u3057\u3066\u3044\u308b\u3060\u3051\u306a\u306e\u3067\u3001<br \/>\nevent \u306f1\u56de\u3057\u304b\u51e6\u7406\u3055\u308c\u305a\u3001\u30d0\u30cb\u30e9\u30e2\u30ca\u30ab\u30b8\u30e3\u30f3\u30dc\u306e\u8cfc\u5165\u3092\u53d7\u3051\u4ed8\u3051\u305f\u30e1\u30fc\u30eb\u3082\u4e00\u5ea6\u3057\u304b\u9001\u4fe1\u3057\u307e\u305b\u3093\u3002<\/p>\n<pre class=\"post-pre\"><code>2021-12-15 18:53:44.635  INFO 70918 <span class=\"nt\">---<\/span> <span class=\"o\">[<\/span>ntainer#0-0-C-1] c.k.o.service.OrderEventsService         : orderEvent: OrderEvent<span class=\"o\">(<\/span><span class=\"nv\">orderEventId<\/span><span class=\"o\">=<\/span>null, <span class=\"nv\">orderEventType<\/span><span class=\"o\">=<\/span>NEW, <span class=\"nv\">order<\/span><span class=\"o\">=<\/span>Order<span class=\"o\">(<\/span><span class=\"nb\">id<\/span><span class=\"o\">=<\/span>41111, <span class=\"nv\">name<\/span><span class=\"o\">=<\/span>\u30d0\u30cb\u30e9\u30e2\u30ca\u30ab\u30b8\u30e3\u30f3\u30dc, <span class=\"nv\">price<\/span><span class=\"o\">=<\/span>145<span class=\"o\">))<\/span>\r\n2021-12-15 18:53:45.087  INFO 70918 <span class=\"nt\">---<\/span> <span class=\"o\">[<\/span>ntainer#0-0-C-1] c.k.o.service.OrderEventsService         : Email sent!!\r\n<\/code><\/pre>\n<p>consumer \u304c1\u53f0\u30c0\u30a6\u30f3\u3057\u3066\u3057\u307e\u3063\u305f\u4eee\u5b9a\u3057\u3066\u3001\u30d7\u30ed\u30bb\u30b9\u30921\u3064\u6b62\u3081\u3066\u307f\u307e\u3059\u3002<br \/>\n\u3059\u308b\u3068\u3001 (Re-)joining group \u304c\u8d70\u3063\u3066\u3001\u8d77\u52d5\u3057\u3066\u3044\u308b consumer \u3067 partition \u304c\u5272\u308a\u632f\u3089\u308c\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"c\"># \u30b7\u30a7\u30eb1<\/span>\r\n2021-12-15 18:49:17.045  INFO 70648 <span class=\"nt\">---<\/span> <span class=\"o\">[<\/span>ntainer#0-0-C-1] o.a.k.c.c.internals.ConsumerCoordinator  : <span class=\"o\">[<\/span>Consumer <span class=\"nv\">clientId<\/span><span class=\"o\">=<\/span>consumer-order-notification-events-group-1, <span class=\"nv\">groupId<\/span><span class=\"o\">=<\/span>order-notification-events-group] <span class=\"o\">(<\/span>Re-<span class=\"o\">)<\/span>joining group\r\n\r\n2021-12-15 18:57:54.080  INFO 70648 <span class=\"nt\">---<\/span> <span class=\"o\">[<\/span>ntainer#0-0-C-1] o.s.k.l.KafkaMessageListenerContainer    : order-notification-events-group: partitions assigned: <span class=\"o\">[<\/span>order-events-2]\r\n<\/code><\/pre>\n<pre class=\"post-pre\"><code><span class=\"c\"># \u30b7\u30a7\u30eb2<\/span>\r\n2021-12-15 18:57:54.078  INFO 71159 <span class=\"nt\">---<\/span> <span class=\"o\">[<\/span>ntainer#0-0-C-1] o.s.k.l.KafkaMessageListenerContainer    : order-notification-events-group: partitions assigned: <span class=\"o\">[<\/span>order-events-1, order-events-0]\r\n<\/code><\/pre>\n<p>consumer \u3068\u3057\u3066\u5b9f\u88c5\u3059\u308b\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u6c34\u5e73\u306b\u30b9\u30b1\u30fc\u30eb\u3059\u308b\u3053\u3068\u3067\u3001\u53ef\u7528\u6027\u3092\u9ad8\u3081\u308b\u4e8b\u304c\u3067\u304d\u307e\u3059\u3002<br \/>\n(\u305d\u308c\u305e\u308c\u306e partition \u306b\u5747\u7b49\u306b\u30a4\u30d9\u30f3\u30c8\u304c\u914d\u4fe1\u3055\u308c\u308b\u306e\u3067\u3042\u308c\u3070\u3001 partition \u306e\u6570\u307e\u3067 consumer \u3092\u5897\u3084\u305b\u3070\u51e6\u7406\u306e\u4e26\u5217\u5ea6\u3082\u4e0a\u304c\u308a\u30b7\u30b9\u30c6\u30e0\u5168\u4f53\u306e\u30b9\u30eb\u30fc\u30d7\u30c3\u30c8\u3082\u5411\u4e0a\u3059\u308b\u3068\u601d\u3044\u307e\u3059)<\/p>\n<hr \/>\n<h2>\u6700\u5f8c\u306b<\/h2>\n<p>\u6c17\u306b\u306a\u3063\u3066\u3044\u305f\u30a4\u30d9\u30f3\u30c8\u99c6\u52d5\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306b\u3064\u3044\u3066\u3001\u52d5\u304f\u3082\u306e\u3092\u4f5c\u3063\u305f\u3053\u3068\u3067\u7406\u89e3\u304c\u9032\u307f\u307e\u3057\u305f\u3002(\u77e5\u3089\u306a\u3044\u3082\u306e\u306b\u5bfe\u3059\u308b\u6050\u6016\u5fc3\u304c\u548c\u3089\u304e\u307e\u3057\u305f)<\/p>\n<p>\u4e00\u65b9\u3067\u3001\u4eca\u56de\u306e\u30e1\u30fc\u30eb\u9001\u4fe1\u306b\u3042\u305f\u308b\u300c\u901a\u77e5\u30b5\u30fc\u30d3\u30b9\u300d\u306e\u3088\u3046\u306b\u3001<br \/>\n\u30b5\u30fc\u30d3\u30b9\u3092\u5206\u5272\u3059\u308b\u7c92\u5ea6\u3084\u8a2d\u8a08\u65b9\u6cd5\u306b\u3064\u3044\u3066\u306f\u5b66\u7fd2\u3068\u7d4c\u9a13\u3092\u7a4d\u3080\u5fc5\u8981\u304c\u3042\u308b\u3068\u611f\u3058\u307e\u3057\u305f\u3002<\/p>\n<p>\u307e\u305f\u3001 Kafka \u306f broker, consumer \u306a\u3069\u306e\u5404\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u30b9\u30b1\u30fc\u30e9\u30d3\u30ea\u30c6\u30a3\u304c\u9ad8\u3044\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3057\u305f\u304c\u3001<br \/>\n\u30a4\u30d9\u30f3\u30c8\u99c6\u52d5\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u3092\u5b9f\u73fe\u3059\u308b\u305f\u3081\u306e\u6280\u8853\u3068\u3057\u3066\u3001\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u306b\u5408\u308f\u305b\u3066\u9069\u5207\u306a\u6280\u8853\u3092\u9078\u3093\u3067\u3044\u304f\u3053\u3068\u3082\u5fc5\u8981\u3060\u3068\u611f\u3058\u307e\u3057\u305f\u3002<\/p>\n<hr \/>\n<h2>\u53c2\u8003<\/h2>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Kafka: The Definitive Guide<\/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\">KIP-500: Replace ZooKeeper with a Self-Managed Metadata Quorum<\/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\">\u300cKafka Summit 2020\u300d\u958b\u50ac\uff01\u30b9\u30c8\u30ec\u30fc\u30b8\u968e\u5c64\u5316\uff0cZooKeeper\u30d5\u30ea\u30fc\uff0c\u30af\u30e9\u30a6\u30c9\u30cd\u30a4\u30c6\u30a3\u30d6 \u2015\u6b21\u306e10\u5e74\u306b\u5411\u3051\u3066\u9032\u5316\u3092\u7d9a\u3051\u308bKafka\u306e\u3044\u307e<\/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\">Exactly-Once Semantics Are Possible: Here\u2019s How Kafka Does It<\/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\">Apache Kafka for Developers using Spring Boot[LatestEdition]<\/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\">Spring for Apache Kafka \u516c\u5f0f\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8<\/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\">spring.pleiades.io \u306b\u3088\u308b Spring for Apache Kafka \u306e\u65e5\u672c\u8a9e\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">Using ThymeLeaf and FreeMarker Emails Templates with Spring<\/ul>\n<h2>\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9<\/h2>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">KiyotaTakeshi\/kafka-playground<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">KiyotaTakeshi\/kafka-spring-sample<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u306f\u3058\u3081\u306b GxP \u306e\u6e05\u7530\u3067\u3059\u3002 \u30a4\u30d9\u30f3\u30c8\u99c6\u52d5\u578b\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3 \u3092\u5b9f\u73fe\u3059\u308b\u305f\u3081\u306e\u6280\u8853\u306e1\u3064\u3067\u3042\u308b\u3001 Apach  [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-46664","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\/46664-2\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:description\" content=\"\u306f\u3058\u3081\u306b GxP \u306e\u6e05\u7530\u3067\u3059\u3002 \u30a4\u30d9\u30f3\u30c8\u99c6\u52d5\u578b\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3 \u3092\u5b9f\u73fe\u3059\u308b\u305f\u3081\u306e\u6280\u8853\u306e1\u3064\u3067\u3042\u308b\u3001 Apach [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/46664-2\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2023-09-23T14:10:38+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-05-04T03:38:23+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d664d37434c4406d09d70\/25-0.jpeg\" \/>\n<meta name=\"author\" content=\"\u6e05, \u5b87\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u6e05, \u5b87\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" 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