{"id":46658,"date":"2023-10-24T02:13:20","date_gmt":"2023-08-14T13:31:14","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/46658-2\/"},"modified":"2024-05-04T05:43:02","modified_gmt":"2024-05-03T21:43:02","slug":"46658-2","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/46658-2\/","title":{"rendered":""},"content":{"rendered":"<h1>\u3053\u306e\u8a18\u4e8b\u306b\u3064\u3044\u3066<\/h1>\n<p>Money Forward Engineering 2 Advent Calendar 2022 &#8211; Qiita \u306e 14\u65e5\u76ee \u306e\u8a18\u4e8b\u3067\u3059\u3002<\/p>\n<h1>\u306f\u3058\u3081\u306b<\/h1>\n<p>Kafka Producer\u306e\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u3092\u4f7f\u7528\u3057\u305f\u30e1\u30c3\u30bb\u30fc\u30b8\u30f3\u30b0\u51e6\u7406\u3092\u4f5c\u308b\u3068\u304d\u306b\u3001<br \/>\n\u30ed\u30fc\u30ab\u30eb\u74b0\u5883\u3067\u306f\u5358\u4e00\u30d6\u30ed\u30fc\u30ab\u30fc\u3067\u6700\u5c0f\u3067\u52d5\u304b\u3057\u305f\u304b\u3063\u305f\u306e\u3067\u3059\u304c\u3001<br \/>\n\u306f\u3058\u3081\u5168\u7136\u52d5\u304b\u3063\u305f\u306e\u3092\u52d5\u304f\u3088\u3046\u306b\u3057\u305f\u306e\u3067\u3001\u305d\u306e\u7d4c\u9a13\u3092\u653e\u51fa\u3057\u307e\u3059\u3002<\/p>\n<p>\u3053\u308c\u3001\u307f\u3093\u306a\u901a\u3089\u306a\u3044\u306e\uff1f\u3068\u601d\u3046\u7a0b\u5ea6\u306b\u306f\u60c5\u5831\u304c\u898b\u3064\u304b\u3089\u306a\u304b\u3063\u305f\u306e\u3067\u3001\u3060\u3044\u3076\u56f0\u308a\u307e\u3057\u305fw<br \/>\n\u203bkafka\u306e\u30b3\u30fc\u30c9\u4ee5\u5916\u306fkotlin\u3067\u3059<\/p>\n<h1>\u74b0\u5883<\/h1>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">kafka\uff08docker image\uff09\uff1a\u3000confluentinc\/cp-kafka:7.2.2<\/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\">kotlin: 1.7\u7cfb<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">OS: M1 Mac<\/ul>\n<h1>\u30b3\u30fc\u30c9<\/h1>\n<h2>\u5b9f\u88c5\u30b3\u30fc\u30c9<\/h2>\n<p>\u4eca\u56de\u306f\u7c21\u5358\u306b\u3084\u308a\u305f\u3044\u306e\u3067\u3001\u6587\u5b57\u5217\u3092\u9001\u308b\u3060\u3051\u306e\u30b7\u30f3\u30d7\u30eb\u306a\u30b3\u30fc\u30c9\u3092\u7528\u610f\u3057\u307e\u3057\u305f\u3002<br \/>\n\u30ed\u30fc\u30eb\u30d0\u30c3\u30af\u306e\u6642\u306b\u610f\u56f3\u7684\u306b\u30a8\u30e9\u30fc\u3092\u767a\u751f\u3055\u305b\u305f\u3044\u306e\u3067\u3001<br \/>\nmock\u3092\u30bb\u30c3\u30c8\u3067\u304d\u308b\u3088\u3046\u306b\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u5f15\u6570\u3067KafkaProducer\u3092\u53d7\u3051\u4ed8\u3051\u308b\u3088\u3046\u306b\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">class<\/span> <span class=\"nc\">TransactionalKafkaProducer<\/span><span class=\"p\">(<\/span>\r\n    <span class=\"n\">producer<\/span><span class=\"p\">:<\/span> <span class=\"nc\">KafkaProducer<\/span><span class=\"p\">&lt;<\/span><span class=\"nc\">Int<\/span><span class=\"p\">,<\/span> <span class=\"nc\">String<\/span><span class=\"p\">&gt;?<\/span> <span class=\"p\">=<\/span> <span class=\"k\">null<\/span>\r\n<span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">private<\/span> <span class=\"kd\">var<\/span> <span class=\"py\">producer<\/span><span class=\"p\">:<\/span> <span class=\"nc\">KafkaProducer<\/span><span class=\"p\">&lt;<\/span><span class=\"nc\">Int<\/span><span class=\"p\">,<\/span> <span class=\"nc\">String<\/span><span class=\"p\">&gt;<\/span>\r\n    <span class=\"nf\">init<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"n\">producer<\/span> <span class=\"p\">=<\/span> <span class=\"n\">producer<\/span> <span class=\"o\">?:<\/span> <span class=\"nc\">ProducerFactory<\/span><span class=\"p\">.<\/span><span class=\"nf\">createInstance<\/span><span class=\"p\">()<\/span>\r\n    <span class=\"p\">}<\/span>\r\n\r\n    <span class=\"nd\">@Suppress<\/span><span class=\"p\">(<\/span><span class=\"s\">\"TooGenericExceptionCaught\"<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"k\">fun<\/span> <span class=\"nf\">messageSend<\/span><span class=\"p\">(<\/span><span class=\"n\">topic<\/span><span class=\"p\">:<\/span> <span class=\"nc\">String<\/span><span class=\"p\">,<\/span> <span class=\"n\">messages<\/span><span class=\"p\">:<\/span> <span class=\"nc\">List<\/span><span class=\"p\">&lt;<\/span><span class=\"nc\">String<\/span><span class=\"p\">&gt;)<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">producer<\/span><span class=\"p\">.<\/span><span class=\"nf\">use<\/span> <span class=\"p\">{<\/span>\r\n            <span class=\"k\">try<\/span> <span class=\"p\">{<\/span>\r\n                <span class=\"n\">it<\/span><span class=\"p\">.<\/span><span class=\"nf\">initTransactions<\/span><span class=\"p\">()<\/span>\r\n                <span class=\"n\">it<\/span><span class=\"p\">.<\/span><span class=\"nf\">beginTransaction<\/span><span class=\"p\">()<\/span>\r\n                <span class=\"n\">messages<\/span><span class=\"p\">.<\/span><span class=\"nf\">forEach<\/span> <span class=\"p\">{<\/span> <span class=\"n\">message<\/span> <span class=\"p\">-&gt;<\/span>\r\n                    <span class=\"n\">it<\/span><span class=\"p\">.<\/span><span class=\"nf\">send<\/span><span class=\"p\">(<\/span><span class=\"nc\">ProducerRecord<\/span><span class=\"p\">(<\/span>\r\n                        <span class=\"n\">topic<\/span><span class=\"p\">,<\/span>\r\n                        <span class=\"nc\">Math<\/span><span class=\"p\">.<\/span><span class=\"nf\">random<\/span><span class=\"p\">().<\/span><span class=\"nf\">toInt<\/span><span class=\"p\">(),<\/span>\r\n                        <span class=\"n\">message<\/span><span class=\"p\">,<\/span>\r\n                    <span class=\"p\">))<\/span>\r\n                <span class=\"p\">}<\/span>\r\n                <span class=\"n\">it<\/span><span class=\"p\">.<\/span><span class=\"nf\">commitTransaction<\/span><span class=\"p\">()<\/span>\r\n            <span class=\"p\">}<\/span> <span class=\"k\">catch<\/span> <span class=\"p\">(<\/span><span class=\"n\">e<\/span><span class=\"p\">:<\/span> <span class=\"nc\">Exception<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n                <span class=\"n\">it<\/span><span class=\"p\">.<\/span><span class=\"nf\">abortTransaction<\/span><span class=\"p\">()<\/span>\r\n                <span class=\"nf\">println<\/span><span class=\"p\">(<\/span><span class=\"n\">e<\/span><span class=\"p\">.<\/span><span class=\"nf\">stackTraceToString<\/span><span class=\"p\">())<\/span>\r\n                <span class=\"k\">throw<\/span> <span class=\"n\">e<\/span>\r\n            <span class=\"p\">}<\/span>\r\n        <span class=\"p\">}<\/span>\r\n    <span class=\"p\">}<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<h2>\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9<\/h2>\n<p>\u5b9f\u969b\u306b\u30ec\u30b3\u30fc\u30c9\u306f\u53d6\u308c\u306a\u3044\u3068\u3044\u3046\u78ba\u8a8d\u3092\u3059\u308b\u305f\u3081\u306b\u3001<br \/>\n\u30c8\u30d4\u30c3\u30af\u3092\u6d88\u8cbb\u3059\u308b\u3088\u3046\u306b\u3057\u3066\u307e\u3059\u3002<br \/>\n\u3061\u3083\u3093\u3068\u52d5\u304f\u3068\u30e1\u30c3\u30bb\u30fc\u30b8\u306f\u53d6\u308c\u306a\u3044\u3067\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">class<\/span> <span class=\"nc\">TransactionalKafkaProducerTests<\/span><span class=\"p\">:<\/span> <span class=\"nc\">AnnotationSpec<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n\r\n    <span class=\"nd\">@BeforeClass<\/span>\r\n    <span class=\"k\">fun<\/span> <span class=\"nf\">setup<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"kd\">val<\/span> <span class=\"py\">props<\/span> <span class=\"p\">=<\/span> <span class=\"nc\">Properties<\/span><span class=\"p\">()<\/span>\r\n        <span class=\"n\">props<\/span><span class=\"p\">[<\/span><span class=\"nc\">ConsumerConfig<\/span><span class=\"p\">.<\/span><span class=\"nc\">BOOTSTRAP_SERVERS_CONFIG<\/span><span class=\"p\">]<\/span> <span class=\"p\">=<\/span> <span class=\"s\">\"localhost:19092\"<\/span>\r\n        <span class=\"kd\">val<\/span> <span class=\"py\">adminClient<\/span> <span class=\"p\">=<\/span> <span class=\"nc\">Admin<\/span><span class=\"p\">.<\/span><span class=\"nf\">create<\/span><span class=\"p\">(<\/span><span class=\"n\">props<\/span><span class=\"p\">)<\/span>\r\n        <span class=\"n\">adminClient<\/span><span class=\"p\">.<\/span><span class=\"nf\">createTopics<\/span><span class=\"p\">(<\/span><span class=\"nf\">listOf<\/span><span class=\"p\">(<\/span>\r\n            <span class=\"nc\">NewTopic<\/span><span class=\"p\">(<\/span><span class=\"nc\">TEST_TOPIC<\/span><span class=\"p\">,<\/span> <span class=\"mi\">50<\/span><span class=\"p\">,<\/span> <span class=\"mi\">1<\/span><span class=\"p\">)<\/span>\r\n        <span class=\"p\">))<\/span>\r\n    <span class=\"p\">}<\/span>\r\n\r\n    <span class=\"nd\">@Test<\/span>\r\n    <span class=\"k\">fun<\/span> <span class=\"nf\">confirmRollback<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n\r\n        <span class=\"kd\">val<\/span> <span class=\"py\">producer<\/span> <span class=\"p\">=<\/span> <span class=\"nf\">spyk<\/span><span class=\"p\">(<\/span><span class=\"nc\">ProducerFactory<\/span><span class=\"p\">.<\/span><span class=\"nf\">createInstance<\/span><span class=\"p\">())<\/span>\r\n        <span class=\"kd\">val<\/span> <span class=\"py\">messages<\/span> <span class=\"p\">=<\/span> <span class=\"nf\">listOf<\/span><span class=\"p\">(<\/span><span class=\"s\">\"message1\"<\/span><span class=\"p\">,<\/span> <span class=\"s\">\"message2\"<\/span><span class=\"p\">)<\/span>\r\n        <span class=\"kd\">val<\/span> <span class=\"py\">testTarget<\/span> <span class=\"p\">=<\/span> <span class=\"nc\">TransactionalKafkaProducer<\/span><span class=\"p\">(<\/span><span class=\"n\">producer<\/span><span class=\"p\">)<\/span>\r\n        <span class=\"nf\">every<\/span> <span class=\"p\">{<\/span>\r\n            <span class=\"n\">producer<\/span><span class=\"p\">.<\/span><span class=\"nf\">commitTransaction<\/span><span class=\"p\">()<\/span>\r\n        <span class=\"p\">}<\/span> <span class=\"nf\">throws<\/span> <span class=\"p\">(<\/span><span class=\"nc\">TimeoutException<\/span><span class=\"p\">(<\/span><span class=\"s\">\"thrown by mock\"<\/span><span class=\"p\">))<\/span>\r\n        <span class=\"n\">shouldThrow<\/span><span class=\"p\">&lt;<\/span><span class=\"nc\">TimeoutException<\/span><span class=\"p\">&gt;<\/span> <span class=\"p\">{<\/span>\r\n            <span class=\"n\">testTarget<\/span><span class=\"p\">.<\/span><span class=\"nf\">messageSend<\/span><span class=\"p\">(<\/span><span class=\"nc\">TEST_TOPIC<\/span><span class=\"p\">,<\/span> <span class=\"n\">messages<\/span><span class=\"p\">)<\/span>\r\n        <span class=\"p\">}<\/span>\r\n\r\n        <span class=\"kd\">val<\/span> <span class=\"py\">consumer<\/span> <span class=\"p\">=<\/span> <span class=\"nc\">KafkaConsumerExecutor<\/span><span class=\"p\">(<\/span><span class=\"nf\">listOf<\/span><span class=\"p\">(<\/span><span class=\"nc\">TEST_TOPIC<\/span><span class=\"p\">))<\/span>\r\n        <span class=\"kd\">val<\/span> <span class=\"py\">records<\/span> <span class=\"p\">=<\/span> <span class=\"n\">consumer<\/span><span class=\"p\">.<\/span><span class=\"nf\">consumerRecord<\/span><span class=\"p\">()<\/span>\r\n        <span class=\"n\">records<\/span><span class=\"p\">.<\/span><span class=\"nf\">count<\/span><span class=\"p\">()<\/span> <span class=\"n\">shouldBe<\/span> <span class=\"mi\">0<\/span>\r\n    <span class=\"p\">}<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<\/code><\/pre>\n<h2>\u8a2d\u5b9a<\/h2>\n<pre class=\"post-pre\"><code>    <span class=\"na\">environment<\/span><span class=\"pi\">:<\/span>\r\n      <span class=\"na\">KAFKA_AUTO_CREATE_TOPICS_ENABLE<\/span><span class=\"pi\">:<\/span> <span class=\"s2\">\"<\/span><span class=\"s\">false\"<\/span>\r\n      <span class=\"na\">KAFKA_LISTENER_SECURITY_PROTOCOL_MAP<\/span><span class=\"pi\">:<\/span> <span class=\"s\">DOCKER_LISTENER:PLAINTEXT,LOCALHOST_LISTENER:PLAINTEXT<\/span>\r\n<span class=\"s\">kafka cluster<\/span>\r\n      <span class=\"s\">KAFKA_ADVERTISED_LISTENERS<\/span><span class=\"err\">:<\/span> <span class=\"s\">DOCKER_LISTENER:\/\/kafka:9092,LOCALHOST_LISTENER:\/\/localhost:19092<\/span>\r\n      <span class=\"s\">KAFKA_INTER_BROKER_LISTENER_NAME<\/span><span class=\"err\">:<\/span> <span class=\"s\">DOCKER_LISTENER<\/span>\r\n      <span class=\"s\">KAFKA_ZOOKEEPER_CONNECT<\/span><span class=\"err\">:<\/span> <span class=\"s\">zookeeper:2181\/kafka<\/span>\r\n      <span class=\"s\"># When kafka cluster is running with single broker, broker id becomes 0 by default. So setting it explicitly.<\/span>\r\n      <span class=\"s\">KAFKA_BROKER_ID<\/span><span class=\"err\">:<\/span> <span class=\"m\">1<\/span>\r\n      <span class=\"c1\"># In local env, save consumer offset to only 1 replica<\/span>\r\n      <span class=\"na\">KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR<\/span><span class=\"pi\">:<\/span> <span class=\"m\">1<\/span>\r\n<\/code><\/pre>\n<h1>\u30c6\u30b9\u30c8\u306e\u5b9f\u884c\u301c\u89e3\u6c7a\u307e\u3067<\/h1>\n<p>\u7c21\u5358\u306b\u7d44\u307f\u8fbc\u3081\u3066\u3068\u3066\u3082\u697d\u3060\u3063\u305f\u306a\u30fc\u3068\u601d\u3063\u3066\u30c6\u30b9\u30c8\u3092\u52d5\u304b\u3059\u3068\u3001\u5168\u304f\u52d5\u3044\u3066\u3044\u308b\u6c17\u914d\u304c\u306a\u3044\u30fb\u30fb\u30fb<br \/>\n\u4f55\u304c\u8d77\u304d\u3066\u3044\u308b\u306e\u304b\u3001\u30ed\u30b0\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d662037434c4406d094ad\/18-0.png\" alt=\"image.png\" \/><\/div>\n<p>\u30a2\u30d7\u30ea\u5074\uff1a<\/p>\n<pre class=\"post-pre\"><code>[Producer clientId=producer-tx-0, transactionalId=tx-0] Sending transactional request FindCoordinatorRequestData(key='', keyType=1, coordinatorKeys=[tx-0]) to node localhost:19092 (id: 1 rack: null) with correlation ID 205\r\n[Producer clientId=producer-tx-0, transactionalId=tx-0] Sending FIND_COORDINATOR request with header RequestHeader(apiKey=FIND_COORDINATOR, apiVersion=4, clientId=producer-tx-0, correlationId=205) and timeout 30000 to node 1: FindCoordinatorRequestData(key='', keyType=1, coordinatorKeys=[tx-0])\r\n[Producer clientId=producer-tx-0, transactionalId=tx-0] Received FIND_COORDINATOR response from node 1 for request with header RequestHeader(apiKey=FIND_COORDINATOR, apiVersion=4, clientId=producer-tx-0, correlationId=205): FindCoordinatorResponseData(throttleTimeMs=0, errorCode=0, errorMessage='', nodeId=0, host='', port=0, coordinators=[Coordinator(key='tx-0', nodeId=-1, host='', port=-1, errorCode=15, errorMessage='')])\r\n<\/code><\/pre>\n<p>errorCode: 15\u306f\u3001COORDINATOR_NOT_AVAILABLE\u3067\u3001\u30b3\u30fc\u30c7\u30a3\u30cd\u30fc\u30bf\u304c\u5229\u7528\u4e0d\u53ef\u3089\u3057\u3044\u3067\u3059\u3051\u3069\u3001\u3053\u308c\u3060\u3051\u3057\u304b\u66f8\u3044\u3066\u306a\u3044\u3068\u610f\u5473\u4e0d\u660e\u3067\u3059\u3002<br \/>\n\u306a\u306e\u3067\u3001kafka\u5074\u306e\u30ed\u30b0\u3082\u898b\u3066\u307f\u307e\u3059\u3002<\/p>\n<p>kafka\u5074\uff1a<\/p>\n<pre class=\"post-pre\"><code>INFO [Admin Manager on Broker 1]: Error processing create topic request CreatableTopic(name='__transaction_state', numPartitions=50, replicationFactor=3, assignments=[], configs=[CreateableTopicConfig(name='compression.type', value='uncompressed'), CreateableTopicConfig(name='cleanup.policy', value='compact'), CreateableTopicConfig(name='min.insync.replicas', value='2'), CreateableTopicConfig(name='segment.bytes', value='104857600'), CreateableTopicConfig(name='unclean.leader.election.enable', value='false')]) (kafka.server.ZkAdminManager)\r\norg.apache.kafka.common.errors.InvalidReplicationFactorException: Replication factor: 3 larger than available brokers: 1.\r\n<\/code><\/pre>\n<p>kafka\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u3067\u4f7f\u7528\u3059\u308b\u3001\u5185\u90e8\u7684\u306a\u30c8\u30d4\u30c3\u30af\u3067\u3042\u308b\u300c__transaction_state\u300d\u306e\u751f\u6210\u306b\u5931\u6557\u3057\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<br \/>\n(\u308f\u304b\u308a\u307e\u3059\u3002\u3068\u66f8\u3044\u3066\u3044\u308b\u3051\u3069\u3001\u5185\u90e8\u7684\u306a\u30c8\u30d4\u30c3\u30af\u3092\u4f5c\u3063\u3066\u308b\u3093\u3060\u30fc\u3078\u30fc\u3063\u3066\u5b9f\u969b\u306f\u601d\u3044\u307e\u3057\u305fw)<br \/>\n\u307e\u305f\u3001\u4e00\u756a\u4e0b\u306b\u300cReplication factor: 3 larger than available brokers: 1.\u300d\u3068\u66f8\u3044\u3066\u3042\u308a\u3001<br \/>\n\u30d6\u30ed\u30fc\u30ab\u306e\u30ce\u30fc\u30c9\u6570\u306f3\u4ee5\u4e0a\u7528\u610f\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3001\u307f\u305f\u3044\u306a\u3053\u3068\u304c\u66f8\u3044\u3066\u3042\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n<p>\u305d\u3057\u3066\u3001\u30cd\u30c3\u30c8\u3092\u691c\u7d22\u3059\u308b\u3068\u3001\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u3092\u4f7f\u3044\u305f\u3044\u306a\u3089\u30d6\u30ed\u30fc\u30ab\u30fc\u30923\u4ee5\u4e0a\u7528\u610f\u3059\u308b\u306e\u304c\u5fc5\u9808\u3068\u3044\u3046\u8a18\u8ff0\u304c\u30c1\u30e9\u30db\u30e9\u30fb\u30fb\u30fb\u3002<br \/>\n\u3067\u3082CI\u3067\u3082\u52d5\u304b\u3057\u305f\u3044\u306e\u306b\u3001\u30d6\u30ed\u30fc\u30ab\u30fc\uff13\u3064\u3082\u7acb\u3066\u305f\u304f\u306a\u3044\u3057\u3001\u30ed\u30fc\u30ab\u30eb\u74b0\u5883\u3067\u30d6\u30ed\u30fc\u30ab\u30fc\uff11\u500b\u3067\u52d5\u304b\u305b\u306a\u3044\u3068\u304b\u3001\u958b\u767a\u8005\u30e9\u30a4\u30af\u3058\u3083\u306a\u3055\u904e\u304e\u308b\u304b\u3089\u3001\u305d\u3093\u306a\u3053\u3068\u306a\u3044\u3067\u3057\u3087\u3002<br \/>\n\u3068\u601d\u3063\u3066kafka\u672c\u4f53\u306e\u30b3\u30fc\u30c9\u3092\u8aad\u3080\u3053\u3068\u306b\u3002<br \/>\n\uff08Document\u306e\u3069\u3053\u304b\u306b\u66f8\u3044\u3066\u3042\u308b\u306e\u304b\u306a\u3041\u3068\u601d\u3044\u306a\u304c\u3089\u8abf\u3079\u3066\u306f\u307f\u305f\u3051\u3069\u3001\u898b\u3064\u3051\u51fa\u305b\u306a\u304b\u3063\u305f\uff09<\/p>\n<h2>\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u8db3\u304c\u304b\u308a\u306b\u8a2d\u5b9a\u3092\u7a81\u304d\u6b62\u3081\u308b<\/h2>\n<p>\u300clarger than available brokers\u300d\u3067\u30b3\u30fc\u30c9\u3092\u691c\u7d22\u3059\u308b\u3068\u3001\u4ee5\u4e0b\u306e\u30b3\u30fc\u30c9\u304c\u898b\u3064\u304b\u308a\u307e\u3059\u3002<br \/>\n3\u3064\u76ee\u306e\u6761\u4ef6\u306b\u5f15\u3063\u304b\u304b\u3063\u3066\u308b\u3053\u3068\u304c\u308f\u304b\u308b\u306e\u3067\u3001<br \/>\nreplicationFactor\u3068brokerMetadatas\u306b\u3001\u3069\u3053\u304b\u3089\u4f55\u304c\u6e21\u3055\u308c\u3066\u3044\u308b\u306e\u304b\u3092\u63a2\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">def<\/span> <span class=\"nf\">assignReplicasToBrokers<\/span><span class=\"o\">(<\/span><span class=\"n\">brokerMetadatas<\/span><span class=\"k\">:<\/span> <span class=\"kt\">Iterable<\/span><span class=\"o\">[<\/span><span class=\"kt\">BrokerMetadata<\/span><span class=\"o\">],<\/span>\r\n                            <span class=\"n\">nPartitions<\/span><span class=\"k\">:<\/span> <span class=\"kt\">Int<\/span><span class=\"o\">,<\/span>\r\n                            <span class=\"n\">replicationFactor<\/span><span class=\"k\">:<\/span> <span class=\"kt\">Int<\/span><span class=\"o\">,<\/span>\r\n                            <span class=\"n\">fixedStartIndex<\/span><span class=\"k\">:<\/span> <span class=\"kt\">Int<\/span> <span class=\"o\">=<\/span> <span class=\"o\">-<\/span><span class=\"mi\">1<\/span><span class=\"o\">,<\/span>\r\n                            <span class=\"n\">startPartitionId<\/span><span class=\"k\">:<\/span> <span class=\"kt\">Int<\/span> <span class=\"o\">=<\/span> <span class=\"o\">-<\/span><span class=\"mi\">1<\/span><span class=\"o\">)<\/span><span class=\"k\">:<\/span> <span class=\"kt\">Map<\/span><span class=\"o\">[<\/span><span class=\"kt\">Int<\/span>, <span class=\"kt\">Seq<\/span><span class=\"o\">[<\/span><span class=\"kt\">Int<\/span><span class=\"o\">]]<\/span> <span class=\"k\">=<\/span> <span class=\"o\">{<\/span>\r\n  <span class=\"nf\">if<\/span> <span class=\"o\">(<\/span><span class=\"n\">nPartitions<\/span> <span class=\"o\">&lt;=<\/span> <span class=\"mi\">0<\/span><span class=\"o\">)<\/span>\r\n    <span class=\"k\">throw<\/span> <span class=\"k\">new<\/span> <span class=\"nc\">InvalidPartitionsException<\/span><span class=\"o\">(<\/span><span class=\"s\">\"Number of partitions must be larger than 0.\"<\/span><span class=\"o\">)<\/span>\r\n  <span class=\"nf\">if<\/span> <span class=\"o\">(<\/span><span class=\"n\">replicationFactor<\/span> <span class=\"o\">&lt;=<\/span> <span class=\"mi\">0<\/span><span class=\"o\">)<\/span>\r\n    <span class=\"k\">throw<\/span> <span class=\"k\">new<\/span> <span class=\"nc\">InvalidReplicationFactorException<\/span><span class=\"o\">(<\/span><span class=\"s\">\"Replication factor must be larger than 0.\"<\/span><span class=\"o\">)<\/span>\r\n  <span class=\"nf\">if<\/span> <span class=\"o\">(<\/span><span class=\"n\">replicationFactor<\/span> <span class=\"o\">&gt;<\/span> <span class=\"nv\">brokerMetadatas<\/span><span class=\"o\">.<\/span><span class=\"py\">size<\/span><span class=\"o\">)<\/span>\r\n    <span class=\"k\">throw<\/span> <span class=\"k\">new<\/span> <span class=\"nc\">InvalidReplicationFactorException<\/span><span class=\"o\">(<\/span><span class=\"n\">s<\/span><span class=\"s\">\"Replication factor: $replicationFactor larger than available brokers: ${brokerMetadatas.size}.\"<\/span><span class=\"o\">)<\/span>\r\n  <span class=\"nf\">if<\/span> <span class=\"o\">(<\/span><span class=\"nv\">brokerMetadatas<\/span><span class=\"o\">.<\/span><span class=\"py\">forall<\/span><span class=\"o\">(<\/span><span class=\"nv\">_<\/span><span class=\"o\">.<\/span><span class=\"py\">rack<\/span><span class=\"o\">.<\/span><span class=\"py\">isEmpty<\/span><span class=\"o\">))<\/span>\r\n    <span class=\"nf\">assignReplicasToBrokersRackUnaware<\/span><span class=\"o\">(<\/span><span class=\"n\">nPartitions<\/span><span class=\"o\">,<\/span> <span class=\"n\">replicationFactor<\/span><span class=\"o\">,<\/span> <span class=\"nv\">brokerMetadatas<\/span><span class=\"o\">.<\/span><span class=\"py\">map<\/span><span class=\"o\">(<\/span><span class=\"nv\">_<\/span><span class=\"o\">.<\/span><span class=\"py\">id<\/span><span class=\"o\">),<\/span> <span class=\"n\">fixedStartIndex<\/span><span class=\"o\">,<\/span>\r\n      <span class=\"n\">startPartitionId<\/span><span class=\"o\">)<\/span>\r\n  <span class=\"k\">else<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"nf\">if<\/span> <span class=\"o\">(<\/span><span class=\"nv\">brokerMetadatas<\/span><span class=\"o\">.<\/span><span class=\"py\">exists<\/span><span class=\"o\">(<\/span><span class=\"nv\">_<\/span><span class=\"o\">.<\/span><span class=\"py\">rack<\/span><span class=\"o\">.<\/span><span class=\"py\">isEmpty<\/span><span class=\"o\">))<\/span>\r\n      <span class=\"k\">throw<\/span> <span class=\"k\">new<\/span> <span class=\"nc\">AdminOperationException<\/span><span class=\"o\">(<\/span><span class=\"s\">\"Not all brokers have rack information for replica rack aware assignment.\"<\/span><span class=\"o\">)<\/span>\r\n    <span class=\"nf\">assignReplicasToBrokersRackAware<\/span><span class=\"o\">(<\/span><span class=\"n\">nPartitions<\/span><span class=\"o\">,<\/span> <span class=\"n\">replicationFactor<\/span><span class=\"o\">,<\/span> <span class=\"n\">brokerMetadatas<\/span><span class=\"o\">,<\/span> <span class=\"n\">fixedStartIndex<\/span><span class=\"o\">,<\/span>\r\n      <span class=\"n\">startPartitionId<\/span><span class=\"o\">)<\/span>\r\n  <span class=\"o\">}<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<p>IntelliJ\u306e[Find Usage]\u3092\u4f7f\u3063\u3066\u3001\u547c\u3073\u51fa\u3057\u968e\u5c64\u3092\u9061\u3063\u3066\u3044\u304f\u3068\u3001\uff08\u9061\u308a\u904e\u7a0b\u306f\u7701\u7565\uff09<br \/>\n\u4ee5\u4e0b\u306e\u8a2d\u5b9a\u5024\u304c\u4e0a\u8a18\u30a8\u30e9\u30fc\u304c\u8d77\u304d\u305f\u5404\u30d1\u30e9\u30e1\u30fc\u30bf\u306b\u6e21\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<br \/>\n\u306a\u306e\u3067\u3001\u3053\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u66f8\u304d\u63db\u3048\u308c\u3070OK\u3067\u3059\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">transaction.state.log.replication.factor<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">transaction.state.log.min.isr<\/ul>\n<pre class=\"post-pre\"><code><span class=\"k\">val<\/span> <span class=\"nv\">OffsetCommitRequiredAcksProp<\/span> <span class=\"k\">=<\/span> <span class=\"s\">\"offsets.commit.required.acks\"<\/span>\r\n<span class=\"cm\">\/** ********* Transaction management configuration ***********\/<\/span>\r\n<span class=\"k\">val<\/span> <span class=\"nv\">TransactionalIdExpirationMsProp<\/span> <span class=\"k\">=<\/span> <span class=\"s\">\"transactional.id.expiration.ms\"<\/span>\r\n<span class=\"k\">val<\/span> <span class=\"nv\">TransactionsMaxTimeoutMsProp<\/span> <span class=\"k\">=<\/span> <span class=\"s\">\"transaction.max.timeout.ms\"<\/span>\r\n<span class=\"k\">val<\/span> <span class=\"nv\">TransactionsTopicMinISRProp<\/span> <span class=\"k\">=<\/span> <span class=\"s\">\"transaction.state.log.min.isr\"<\/span>\r\n<span class=\"k\">val<\/span> <span class=\"nv\">TransactionsLoadBufferSizeProp<\/span> <span class=\"k\">=<\/span> <span class=\"s\">\"transaction.state.log.load.buffer.size\"<\/span>\r\n<span class=\"k\">val<\/span> <span class=\"nv\">TransactionsTopicPartitionsProp<\/span> <span class=\"k\">=<\/span> <span class=\"s\">\"transaction.state.log.num.partitions\"<\/span>\r\n<span class=\"k\">val<\/span> <span class=\"nv\">TransactionsTopicSegmentBytesProp<\/span> <span class=\"k\">=<\/span> <span class=\"s\">\"transaction.state.log.segment.bytes\"<\/span>\r\n<span class=\"k\">val<\/span> <span class=\"nv\">TransactionsTopicReplicationFactorProp<\/span> <span class=\"k\">=<\/span> <span class=\"s\">\"transaction.state.log.replication.factor\"<\/span>\r\n<span class=\"k\">val<\/span> <span class=\"nv\">TransactionsAbortTimedOutTransactionCleanupIntervalMsProp<\/span> <span class=\"k\">=<\/span> <span class=\"s\">\"transaction.abort.timed.out.transaction.cleanup.interval.ms\"<\/span>\r\n<span class=\"k\">val<\/span> <span class=\"nv\">TransactionsRemoveExpiredTransactionalIdCleanupIntervalMsProp<\/span> <span class=\"k\">=<\/span> <span class=\"s\">\"transaction.remove.expired.transaction.cleanup.interval.ms\"<\/span>\r\n<\/code><\/pre>\n<h2>docker-compose.yml\u306b\u8a2d\u5b9a\u3092\u8ffd\u52a0\u3059\u308b<\/h2>\n<p>docker-compose\u4e0a\u306b\u8a2d\u5b9a\u3092\u66f8\u304f\u5834\u5408\u306f\u3001<\/p>\n<blockquote><p>KAFKA_<\/p><\/blockquote>\n<p>\u306b\u7d9a\u3051\u3066\u3001\u30b9\u30cd\u30fc\u30af\u30b1\u30fc\u30b9 &amp; \u5927\u6587\u5b57\u3067\u8a2d\u5b9a\u5024\u306e\u30ad\u30fc\u3092\u66f8\u3044\u3066\u3001\u305d\u306e\u5024\u3092\u8a2d\u5b9a\u3059\u308c\u3070\u826f\u3044\u306e\u3067\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002\uff08\u4e0b\uff12\u884c\u3092\u8ffd\u52a0\uff09<\/p>\n<pre class=\"post-pre\"><code>    <span class=\"na\">environment<\/span><span class=\"pi\">:<\/span>\r\n      <span class=\"na\">KAFKA_AUTO_CREATE_TOPICS_ENABLE<\/span><span class=\"pi\">:<\/span> <span class=\"s2\">\"<\/span><span class=\"s\">false\"<\/span>\r\n      <span class=\"na\">KAFKA_LISTENER_SECURITY_PROTOCOL_MAP<\/span><span class=\"pi\">:<\/span> <span class=\"s\">DOCKER_LISTENER:PLAINTEXT,LOCALHOST_LISTENER:PLAINTEXT<\/span>\r\n      <span class=\"na\">KAFKA_ADVERTISED_LISTENERS<\/span><span class=\"pi\">:<\/span> <span class=\"s\">DOCKER_LISTENER:\/\/kafka:9092,LOCALHOST_LISTENER:\/\/localhost:19092<\/span>\r\n      <span class=\"na\">KAFKA_INTER_BROKER_LISTENER_NAME<\/span><span class=\"pi\">:<\/span> <span class=\"s\">DOCKER_LISTENER<\/span>\r\n      <span class=\"na\">KAFKA_ZOOKEEPER_CONNECT<\/span><span class=\"pi\">:<\/span> <span class=\"s\">zookeeper:2181\/kafka<\/span>\r\n      <span class=\"na\">KAFKA_BROKER_ID<\/span><span class=\"pi\">:<\/span> <span class=\"m\">1<\/span>\r\n      <span class=\"c1\"># In local env, save consumer offset to only 1 replica<\/span>\r\n      <span class=\"na\">KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR<\/span><span class=\"pi\">:<\/span> <span class=\"m\">1<\/span>\r\n      <span class=\"c1\"># In local env, transaction's inner topic settings in kafka set to 1 only.<\/span>\r\n      <span class=\"na\">KAFKA_TRANSACTION_STATE_LOG_REPLICATION_FACTOR<\/span><span class=\"pi\">:<\/span> <span class=\"m\">1<\/span> <span class=\"c1\"># &lt;- add<\/span>\r\n      <span class=\"na\">KAFKA_TRANSACTION_STATE_LOG_MIN_ISR<\/span><span class=\"pi\">:<\/span> <span class=\"m\">1<\/span> <span class=\"c1\"># &lt;- add<\/span>\r\n<\/code><\/pre>\n<h2>\u30c6\u30b9\u30c8\u3092\u5b9f\u884c<\/h2>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d662037434c4406d094ad\/38-0.png\" alt=\"image.png\" \/><\/div>\n<h1>\u7d42\u308f\u308a\u306b<\/h1>\n<p>kafka Producer\u306e\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u3092\u4f7f\u7528\u3057\u305f\u958b\u767a\u3092\u884c\u3044\u305f\u3044\u5834\u5408\u306b\u3001<br \/>\n\u5358\u4e00\u30d6\u30ed\u30fc\u30ab\u30fc\u3067\u7c21\u5358\u306b\u52d5\u304b\u305b\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002<br \/>\n\u30ed\u30fc\u30ab\u30eb\u74b0\u5883\u3067\u30c6\u30b9\u30c8\u304c\u7c21\u5358\u306b\u884c\u3048\u308b\u3088\u3046\u306b\u306a\u3063\u305f\u306e\u3067\u3001\u81ea\u4fe1\u3092\u6301\u3063\u3066\u5b9f\u884c\u74b0\u5883\u306b\u30c7\u30d7\u30ed\u30a4\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u306d\u3002<\/p>\n<p>\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u306e\u3053\u306e\u8fba\u3092\u898b\u308b\u3068\u3001\u3082\u3063\u3068\u7c21\u5358\u306b\u8fbf\u308a\u7740\u3051\u305f\u3088\u3001\u306a\u3069\u3042\u308c\u3070\u6559\u3048\u3066\u3044\u305f\u3060\u3051\u308b\u3068\u5b09\u3057\u3044\u3067\u3059\u3002<\/p>\n<p>\u307e\u305f\u3001\u3053\u306e\u30da\u30fc\u30b8\u306e\u30c7\u30e2\u30b3\u30fc\u30c9\u306f\u4ee5\u4e0b\u306b\u3042\u308a\u307e\u3059\u3002<br \/>\nhttps:\/\/github.com\/sh-ogawa\/kafka-demo<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u3053\u306e\u8a18\u4e8b\u306b\u3064\u3044\u3066 Money Forward Engineering 2 Advent Calendar 20 [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-46658","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\/46658-2\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta 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